USPP10925P - Kentucky Bluegrass, named `Ba74-17` - Google Patents

Kentucky Bluegrass, named `Ba74-17` Download PDF

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USPP10925P
USPP10925P US08/949,938 US94993897V US10925P US PP10925 P USPP10925 P US PP10925P US 94993897 V US94993897 V US 94993897V US 10925 P US10925 P US 10925P
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kentucky bluegrass
length
leaf
lsd
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Virgil D. Meier
Jay B. Burr
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OMS Investments Inc
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H5/00—Angiosperms, i.e. flowering plants, characterised by their plant parts; Angiosperms characterised otherwise than by their botanic taxonomy
    • A01H5/12—Leaves
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
    • A01H6/00—Angiosperms, i.e. flowering plants, characterised by their botanic taxonomy
    • A01H6/46—Gramineae or Poaceae, e.g. ryegrass, rice, wheat or maize
    • A01H6/466—Poa, e.g. bluegrass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0586—Effecting diverse or sequential cuts in same cutting step
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0605—Cut advances across work surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8854—Progressively cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9411—Cutting couple type
    • Y10T83/9423—Punching tool
    • Y10T83/9428—Shear-type male tool
    • Y10T83/9432—Plural spaced successively operative shearing portions

Definitions

  • the present invention relates to a new and distinct variety of Poa pratensis that has been designated Ba74-17 Kentucky Bluegrass.
  • the present invention relates to a new and distinct variety of Poa pratensis that has been designated Ba74-17 Kentucky Bluegrass.
  • Ba74-17 plant material was selected from the open pollinated progeny of PI-1369718, a Kentucky Bluegrass plant grown and maintained in a Breeders Nursey at The Scott Company's Research Station in Marysville, Ohio. After testing and observing the Ba74-17 Kentucky Bluegrass variety, it was determined to be a distinct variety, and it was asexually propagated by rhizomes, tillers and disseminules, Seed of Ba74-17 Kentucky Bluegrass was produced first at Marysville, Ohio and later at Gervais, Oreg. This seed was used to plant turf performance evaluation trials and later seed production fields.
  • Asexual production of Ba 74-17 by propagules (tillers and rhizomes) and by disseminules (modified caryopses produced by apomixis) has consistantly produced progeny plants indistinguishable from a mother plant Ba 74-17 in regard to characteristics other than those specified above.
  • the apomixis level of Ba74-17 is approximately 95% based upon examining seedling characteristics of approximately 100 to 150 seedlings from different crop years in a growth chamber.
  • Ba74-17 has a number of highly desirable characteristics including a medium to high level of resistance to Drechslera spp. that causes leaf spot, melting out and crown rot, Puccinia spp. that causes rust infection such as leaf rust, Fusarium spp. that causes Fusarium patch and Laetisaria fuciformis that causes red thread.
  • Ba74-17 is an overall good turfgrass performer as evidenced by medium to high scores for quality and color.
  • Ba74-17 has a high seed yield potential in the Bluegrass seed production region of the northwestern U.S.A.
  • Ba74-17 In comparison with a number of other Kentucky Bluegrass varieties, Ba74-17 is slightly above average in seed length and width, and rachilla length and has an average amount of lemma hairs.
  • the panicle is below average in length and width, above average in whorl number, and above average branch count for both the lower and third whorls.
  • Ba74-17 has below average size spikelets, a significantly lower number of florets and shorter glumes.
  • the peduncle is below average in length and above average width, and significantly shorter culm length, below average in node number and internode length.
  • the flag leaf is of average length, width and thickness.
  • the flag leaf ligule is above average in length, has an average amount of hair on the dorsal side of the ligule but below average hair content on the leaf margin.
  • the vegetative leaf is of average length and thickness but the leaf width is significantly narrower and the ligule is below average in length.
  • the hair content of the vegetative leaf is above average for the upper margin of the ligule, and is significantly less on the leaf margin.
  • FIG. 1 is a Ba74-17 Kentucky Bluegrass panicle during anthesis
  • FIG. 2 is a Ba74-17 Kentucky Bluegrass seed
  • FIG. 3 is a Ba74-17 Kentucky Bluegrass plant shortly after completing anthesis.
  • Ba74-17 Kentucky Bluegrass (Poa pratensis L.) is perennial with creeping rhizomes forming a dense turf.
  • culms are erect averaging 31.0 cm in length and 3.1 nodes per culm.
  • the uppermost internode averages 7.6 cm in length.
  • the peduncle average 20.7 cm in length and 0.76 mm in width.
  • the vegetative leaf averages 19.3 cm in length, 3.0 mm in width, 0.30 mm in thickness and the ligule 0.14 mm in length.
  • the flag leaf averages 4.3 cm in length, 3.1 mm in width, 0.20 mm in thickness and a ligule length of 1.2 mm.
  • the panicle averages 75.1 mm in length, 53.4 mm in width, and 9.8 whorls.
  • the lowest whorl and the third whorl from the bottom of the panicle average 3.9 and 3.6 branches, respectively.
  • a spikelet in the lowest whorl averages 4.2 mm in length, 2.1 mm in width, 2.4 florets, the outer and inner glumes average 2.5 mm and 2.9 mm in length, respectively.
  • a spikelet from the third whorl from the bottom of the panicle averages 4.4 mm in length, 2.2 mm in width, 2.1 florets and the outer and inner glumes average 2.5 mm and 2.9 mm in length, respectively.
  • Conditioned seed of Ba74-17 averages 3.00 mm in length, 0.88 mm in width, a rachilla length of 0.83 mm and an average hair content at the base of the lemma.
  • Ba74-17 differs significantly from several of the other Kentucky Bluegrass varieties in regard to the following morphological characteristics: (1) the culm length and number of nodes per culm; (2) the number of florets in both the lowest and third whorl; (3) the length of the outer glumes in the third whorl; and (4) vegetative leaf length, ligule length and leaf margin hairs. Since environmental conditions such as soil and climate may influence morphological characteristics to some extent comparisons of Ba74-17 were made with other Kentucky Bluegrass varieties and the comparisons are set forth in Tables 3-8:
  • Turf diseases are one of the major causes of inconsistent and poor turf performance.
  • Ba74-17 has been found to have a medium to high level of resistance to the following diseases: (a) leaf spot and melting out caused by Drechslera poae formerly called Helminthosporium vagans; (b) diseases such as leaf rust caused by Puccinia spp; (c) Fusarium patch caused by Fusarium spp; and (d) red thread caused by Laetisaria fuciformis.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physiology (AREA)
  • Botany (AREA)
  • Developmental Biology & Embryology (AREA)
  • Environmental Sciences (AREA)
  • Natural Medicines & Medicinal Plants (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)

Abstract

A variety of Kentucky Bluegrass having a medium to high level of resistance to leaf spot and melting out, leaf rust, Fusarium patch and red thread; a dark green color throughout the growing season; the ability to form a medium to high quality turf under a variety of environmental conditions; short growth and a high seed yielding capacity.

Description

FIELD OF THE INVENTION
The present invention relates to a new and distinct variety of Poa pratensis that has been designated Ba74-17 Kentucky Bluegrass.
DESCRIPTION OF RELATED ART
Kentucky Bluegrass have been disclosed in U.S. Plant Pat. No. 3,156, issued May 9, 1972; U.S. Plant Pat. No. 3,186, issued May 23, 1972; U.S. Plant Pat. No. 4,336, issued Nov. 28, 1978; U.S. Plant Pat. No. 6,280, issued Sep. 6, 1988; U.S. Plant Pat. Nos. 6,537 and 6,538, issued on Jan. 17, 1989; U.S. Plant Pat. No. 6,585, issued Feb. 7, 1989; U.S. Plant Pat. No. 7,831, issued Mar. 17, 1992; U.S. Plant Pat. No. 8,490, issued Dec. 7, 1993; U.S. Plant Pat. No. 9,036, issued Jan. 3, 1995; U.S. Plant Pat. No. 9,209, issued Jul. 18, 1995; U.S. Plant Pat. No. 9,611, issued Jul. 23, 1996; U.S. Plant Pat. No. 9,848, issued Apr. 1, 1997; U.S. Plant Pat. No. 9,977, issued Jul. 22, 1997; pending U.S. Plant patent application Ser. No. 08/680,168, filed Jul. 15, 1997; pending U.S. Plant patent application Ser. No. 08/680,167, filed Jul. 15, 1997; pending U.S. Plant patent application Ser. No. 08/763,076, filed Dec. 10, 1996.
SUMMARY OF THE VARIETY
The present invention relates to a new and distinct variety of Poa pratensis that has been designated Ba74-17 Kentucky Bluegrass.
Ba74-17 plant material was selected from the open pollinated progeny of PI-1369718, a Kentucky Bluegrass plant grown and maintained in a Breeders Nursey at The Scott Company's Research Station in Marysville, Ohio. After testing and observing the Ba74-17 Kentucky Bluegrass variety, it was determined to be a distinct variety, and it was asexually propagated by rhizomes, tillers and disseminules, Seed of Ba74-17 Kentucky Bluegrass was produced first at Marysville, Ohio and later at Gervais, Oreg. This seed was used to plant turf performance evaluation trials and later seed production fields.
In field and laboratory tests, it was demonstrated that Ba74-17 was significantly different at the 0.05% level from its female parent, PI-1369718, on the basis of the following characteristics: culm length, panicle length, seed weight, and leaf spot incidence. A comparison of the two grasses is given in the following table:
______________________________________
         Mean Values
           Culm    Panicle    Seed
           Length  Length     weight
                                    Leaf spot
Variety    (cm)    (cm)       (gms) Incidence*
______________________________________
Ba74-17    33.6    7.7        0.26  7.8
PI 1369718 30.0    7.2        0.21  8.2
______________________________________
 *Leaf spot incidence rated 0-9, 9 = most leaf spot disease
Asexual production of Ba 74-17 by propagules (tillers and rhizomes) and by disseminules (modified caryopses produced by apomixis) has consistantly produced progeny plants indistinguishable from a mother plant Ba 74-17 in regard to characteristics other than those specified above. The apomixis level of Ba74-17 is approximately 95% based upon examining seedling characteristics of approximately 100 to 150 seedlings from different crop years in a growth chamber.
Ba74-17 has a number of highly desirable characteristics including a medium to high level of resistance to Drechslera spp. that causes leaf spot, melting out and crown rot, Puccinia spp. that causes rust infection such as leaf rust, Fusarium spp. that causes Fusarium patch and Laetisaria fuciformis that causes red thread. Ba74-17 is an overall good turfgrass performer as evidenced by medium to high scores for quality and color. Ba74-17 has a high seed yield potential in the Bluegrass seed production region of the northwestern U.S.A.
In comparison with a number of other Kentucky Bluegrass varieties, Ba74-17 is slightly above average in seed length and width, and rachilla length and has an average amount of lemma hairs. The panicle is below average in length and width, above average in whorl number, and above average branch count for both the lower and third whorls. Ba74-17 has below average size spikelets, a significantly lower number of florets and shorter glumes. The peduncle is below average in length and above average width, and significantly shorter culm length, below average in node number and internode length. The flag leaf is of average length, width and thickness. The flag leaf ligule is above average in length, has an average amount of hair on the dorsal side of the ligule but below average hair content on the leaf margin. The vegetative leaf is of average length and thickness but the leaf width is significantly narrower and the ligule is below average in length. The hair content of the vegetative leaf is above average for the upper margin of the ligule, and is significantly less on the leaf margin.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a Ba74-17 Kentucky Bluegrass panicle during anthesis;
FIG. 2 is a Ba74-17 Kentucky Bluegrass seed; and
FIG. 3 is a Ba74-17 Kentucky Bluegrass plant shortly after completing anthesis.
DETAILED DESCRIPTION OF THE VARIETY
Ba74-17 Kentucky Bluegrass (Poa pratensis L.) is perennial with creeping rhizomes forming a dense turf. When plants overwinter in the field under freezing temperatures and are then brought into the greenhouse during late winter to continue growth undisturbed by clipping under moderate temperatures (60-80 F.), culms are erect averaging 31.0 cm in length and 3.1 nodes per culm. The uppermost internode averages 7.6 cm in length. The peduncle average 20.7 cm in length and 0.76 mm in width. The vegetative leaf averages 19.3 cm in length, 3.0 mm in width, 0.30 mm in thickness and the ligule 0.14 mm in length. The flag leaf averages 4.3 cm in length, 3.1 mm in width, 0.20 mm in thickness and a ligule length of 1.2 mm.
The panicle averages 75.1 mm in length, 53.4 mm in width, and 9.8 whorls. The lowest whorl and the third whorl from the bottom of the panicle average 3.9 and 3.6 branches, respectively. A spikelet in the lowest whorl averages 4.2 mm in length, 2.1 mm in width, 2.4 florets, the outer and inner glumes average 2.5 mm and 2.9 mm in length, respectively. A spikelet from the third whorl from the bottom of the panicle averages 4.4 mm in length, 2.2 mm in width, 2.1 florets and the outer and inner glumes average 2.5 mm and 2.9 mm in length, respectively.
Conditioned seed of Ba74-17 averages 3.00 mm in length, 0.88 mm in width, a rachilla length of 0.83 mm and an average hair content at the base of the lemma.
Comparisons of Ba74-17 with other Kentucky Bluegrass varieties in terms of seed dimensions and seed numbers per pound are shown in Tables 1 and 2 as follows:
              TABLE 1
______________________________________
Morphological Comparisons of Seed Length and Width; Rachilla
and Lemma Hairs of Ba74-17 and Other Kentucky Bluegrass
Varieties After Conditioning at Marysville, OH.
         Seed
           Length  Width      Rachilla
                                    Lemma
Variety    mm      mm         mm    Hairs*
______________________________________
Ba74-17    3.00    0.88       0.83  4.4
Abbey      2.97    0.89       0.80  3.8
Adelphi    2.70    0.84       0.65  4.4
Allure     2.78    0.86       0.70  4.7
Ascot      3.00    0.85       0.82  3.9
Baron      3.08    0.81       0.71  5.0
Bristol    2.94    0.88       0.73  4.3
Buckingham 3.23    0.89       0.88  4.2
Cannon     3.00    0.94       0.86  4.9
Chateau    2.81    0.86       0.71  4.5
Coventry   2.71    0.81       0.70  4.0
Eclipse    2.77    0.83       0.68  3.5
Georgetown 2.94    0.82       0.74  4.9
Gnome      2.78    0.83       0.75  4.1
Kelly      3.07    0.89       0.75  4.2
Midnight   2.94    0.76       0.78  5.7
Nassau     3.07    0.86       0.68  3.4
Nottingham 3.05    0.88       0.82  3.8
Ram 1      3.23    0.89       0.80  6.0
Touchdown  2.93    0.88       0.41  4.6
Victa      3.00    0.80       0.82  3.5
Viva       3.04    0.91       0.84  4.4
LSD (.05)  0.16    0.05       0.13  0.86
______________________________________
 *Rating Scale: 0-9; 9 = most hairs

              TABLE 2
______________________________________
Comparisons of Seeds Per Pound of Ba74-17 and Other Kentucky
Bluegrass Varieties After Conditioning.
Variety       Seeds Per Pound
______________________________________
Ba74-17       1,128,600
Ba78-258      1,127,000
Ba78-165      965,500
Abbey         988,500
Buckingham    978,000
Cannon        1,023,250
Coventry      1,374,750
Garfield      1,250,500
Newport       1,250,250
Viva          993,500
LSD (.05)     77,042
______________________________________
Ba74-17 differs significantly from several of the other Kentucky Bluegrass varieties in regard to the following morphological characteristics: (1) the culm length and number of nodes per culm; (2) the number of florets in both the lowest and third whorl; (3) the length of the outer glumes in the third whorl; and (4) vegetative leaf length, ligule length and leaf margin hairs. Since environmental conditions such as soil and climate may influence morphological characteristics to some extent comparisons of Ba74-17 were made with other Kentucky Bluegrass varieties and the comparisons are set forth in Tables 3-8:
              TABLE 3
______________________________________
Morphological Comparison of Panicles, Whorl Number and Whorl
Branches of Ba74-17 and Other Kentucky Bluegrass Varieties in the
Greenhouse at Marysville, OH
                         Number
Panicles                 of Branches
                 Length  Width Whorl Lowest
                                           Third
Variety Nodding* (mm)    (mm)  Number
                                     Whorl Whorl
______________________________________
Ba74-17 1.3      75.1    53.4  9.8   3.9   3.6
Abbey   1.6      80.4    59.3  9.3   3.8   3.3
Adelphi 1.8      106.8   76.4  10.0  3.6   3.0
Allure  2.2      60.8    47.6  8.4   3.9   3.0
Ascot   2.4      77.1    66.0  9.2   2.3   2.1
Baron   2.2      92.6    71.0  10.0  3.4   2.8
Bristol 2.0      85.5    61.5  8.4   2.8   2.7
Buckingham
        2.0      88.8    62.0  9.3   2.1   2.1
Cannon  1.1      80.2    55.3  9.8   4.1   3.9
Chateau 2.9      65.2    57.3  8.5   3.3   2.8
Coventry
        2.5      64.0    54.2  8.4   3.3   2.5
Eclipse 1.3      89.2    74.0  10.7  3.3   2.1
Georgetown
        1.0      80.0    57.0  7.4   2.1   2.6
Gnome   1.1      80.6    56.0  10.6  4.6   3.9
Kelly   2.0      88.0    70.2  9.8   4.6   3.7
Midnight
        2.0      75.8    48.4  7.1   2.9   3.0
Nassau  2.2      91.2    68.6  10.0  2.5   2.1
Nottingham
        1.2      77.5    56.1  8.7   4.0   3.5
Ram 1   1.3      67.7    47.0  7.3   3.0   3.2
Touchdown
        1.1      73.1    75.0  7.6   2.1   2.3
Victa   1.7      74.9    58.3  10.0  4.7   3.5
Viva    1.6      88.8    68.4  8.8   4.3   3.7
LSD (.05)
        0.68     7.35    8.62  0.66  0.72  0.50
______________________________________
 *Rating Scale: 1-9; 9 = most nodding

              TABLE 4
______________________________________
Morphological Comparison of Spikelets and Florets of Ba74-17 and
Other Kentucky Bluegrass Varieties in the Greenhouse at Marysville, OH.
                         Number
       Spikelets         of Florets
       Lowest Whorl
                 Third Whorl Per Spikelet
         Length  Width   Length
                               Width Lowest
                                           Third
Variety  mm      mm      mm    mm    Whorl Whorl
______________________________________
Ba74-17  4.2     2.1     4.4   2.2   2.4   2.1
Abbey    4.4     2.2     4.5   2.2   3.0   3.0
Adelphi  4.6     2.2     4.8   2.2   4.4   4.4
Allure   4.3     2.2     4.3   2.2   3.4   3.2
Ascot    5.4     2.6     5.3   2.9   3.1   3.1
Baron    5.4     2.8     5.4   3.1   4.0   4.2
Bristol  4.9     2.4     5.0   2.5   4.2   4.5
Buckingham
         5.6     3.2     5.6   3.3   4.1   4.1
Cannon   4.7     2.4     4.6   2.6   2.7   2.7
Chateau  4.4     2.4     4.4   2.4   3.4   3.5
Coventry 4.4     2.2     4.5   2.4   3.2   3.5
Eclipse  4.6     2.4     4.6   2.4   3.6   3.6
Georgetown
         5.0     2.3     5.0   2.6   4.8   4.9
Gnome    4.6     2.5     4.6   2.9   3.2   3.2
Kelly    5.1     2.5     5.2   2.8   3.7   3.8
Midnight 5.3     2.5     5.5   2.4   4.4   4.7
Nassau   4.7     2.6     4.8   3.0   4.2   4.3
Nottingham
         4.6     2.5     4.8   2.6   3.3   3.4
Ram 1    5.4     2.6     5.3   2.8   3.6   3.4
Touchdown
         5.1     2.9     4.8   2.8   4.1   4.0
Victa    4.5     2.5     4.5   2.4   3.3   3.2
Viva     4.6     2.5     4.7   2.6   2.6   2.8
LSD (.05)
         0.41    0.35    0.38  0.35  0.58  0.3
______________________________________

              TABLE 5
______________________________________
Morphological Comparison of Glumes of Ba74-17 and Other
Kentucky Bluegrass Varieties in the Greenhouse at Marysville,
______________________________________
OH
         Glume Length (mm)
         Outer            Inner
           Lowest  Third      Lowest
                                    Third
Variety    Whorl   Whorl      Whorl Whorl
______________________________________
Ba74-17    2.5     2.5        2.9   2.9
Abbey      2.7     2.7        3.1   3.1
Adelphi    2.7     2.6        3.0   3.1
Allure     2.6     2.7        3.0   3.0
Ascot      3.7     3.7        4.1   4.0
Baron      3.1     3.2        3.6   3.7
Bristol    2.8     3.0        3.3   3.4
Buckingham 3.5     3.3        3.9   3.8
Cannon     2.8     2.9        3.2   3.1
Chateau    2.8     2.9        3.1   3.2
Coventry   2.7     2.8        3.1   3.1
Eclipse    3.0     3.0        3.4   3.4
Georgetown 2.8     2.8        3.1   3.1
Gnome      2.8     2.9        3.3   3.3
Kelly      3.0     3.1        3.4   3.5
Midnight   2.6     2.6        3.0   3.1
Nassau     2.6     2.7        2.9   3.0
Nottingham 2.7     2.8        3.3   3.3
Ram 1      2.9     3.0        3.6   3.5
Touchdown  3.3     3.3        3.8   3.8
Victa      2.8     2.7        3.1   3.1
Viva       2.8     2.8        3.2   3.1
LSD (.05)  0.23    0.22       0.22  0.23
______________________________________
          Glume Hairs*
          Lowest Whorl     Third Whorl
Variety     Outer   Inner      Outer
                                    Inner
______________________________________
Ba74-17     1.3     3.0        1.9  2.9
Abbey       0.6     0.9        1.0  1.0
Adelphi     0.6     2.7        1.1  1.9
Allure      2.5     3.0        2.5  2.5
Ascot       2.1     3.0        2.0  2.3
Baron       4.8     4.4        4.2  4.6
Bristol     1.0     2.2        0.8  2.2
Buckingham  2.6     3.2        2.2  2.8
Cannon      1.7     2.3        2.1  2.3
Chateau     1.5     2.6        2.0  1.8
Coventry    1.5     2.7        1.6  2.4
Eclipse     1.5     1.9        1.8  1.9
Georgetown  1.7     2.7        1.2  2.4
Gnome       1.0     1.9        1.2  1.6
Kelly       1.3     1.5        1.1  0.8
Midnight    1.8     2.8        1.0  2.4
Nassau      2.1     2.6        4.2  4.4
Nottingham  2.4     2.2        1.9  2.1
Ram 1       1.1     2.3        0.7  1.2
Touchdown   0.7     2.1        1.1  1.4
Victa       0.8     1.1        1.1  1.3
Viva        1.7     1.3        1.3  2.0
LSD (.05)   0.9     0.9        0.9  0.9
______________________________________
 *Rating Scale: 0-9; 9 = most hairs

              TABLE 6
______________________________________
Morphological Comparison of Flag Leaves of Ba74-17 and Other
Kentucky Bluegrass Varieties in the Greenhouse at Marysville,
______________________________________
OH
Leaves
        Length   Width    Thickness
Variety cm       mm       mm      Angle  Curve
______________________________________
Ba74-17 4.3      3.1      0.20    1.2    5.0
Abbey   3.8      3.4      0.14    2.7    4.1
Adelphi 5.7      3.4      0.18    5.2    5.0
Allure  3.8      2.9      0.21    1.0    4.9
Ascot   4.7      3.5      0.29    2.1    4.5
Baron   7.0      4.2      0.15    9.2    4.4
Bristol 4.3      3.2      0.21    2.3    5.0
Buckingham
        5.3      3.4      0.23    1.4    5.0
Cannon  4.3      3.5      0.22    1.9    5.0
Chateau 4.0      2.7      0.19    3.4    2.0
Coventry
        3.7      3.0      0.14    0.7    4.3
Eclipse 3.9      3.2      0.19    8.7    5.0
Georgetown
        5.7      2.8      0.22    1.9    5.0
Gnome   4.5      3.5      0.18    4.3    5.0
Kelly   4.8      4.1      0.18    3.1    4.4
Midnight
        3.8      2.6      0.19    1.1    5.0
Nassau  6.0      3.7      0.19    5.9    4.7
Nottingham
        4.3      3.7      0.22    2.0    4.6
Ram 1   3.4      3.1      0.19    1.0    4.8
Touchdown
        4.1      2.7      0.16    3.4    4.1
Victa   3.9      3.7      0.27    2.1    4.6
Viva    4.5      3.6      0.18    5.1    4.4
LSD (.05)
        1.0      0.42     0.02    2.50   0.44
______________________________________
         Hairs*
           Ligule  Leaf             Sheath
Variety    mm      Margin     Ligule
                                    Color**
______________________________________
Ba74-17    1.2     0.2        2.8   2.0
Abbey      1.3     0.8        1.6   0.2
Adelphi    1.1     1.8        1.6   0.4
Allure     0.8     0.4        2.3   2.0
Ascot      1.5     0.6        0.7   0.9
Baron      1.2     1.0        3.8   2.6
Bristol    0.6     0.4        1.9   2.0
Buckingham 1.2     0.5        2.1   1.8
Cannon     1.3     0.4        3.6   1.5
Chateau    0.9     1.1        3.1   0.3
Coventry   0.9     0.8        1.7   2.0
Eclipse    1.1     1.0        1.0   0.2
Georgetown 0.6     0.6        2.0   2.0
Gnome      0.8     0.9        3.2   1.5
Kelly      1.5     1.1        2.5   2.2
Midnight   30.4    0.4        0.3   2.0
Nassau     1.1     2.6        2.4   0.8
Nottingham 1.3     1.5        2.3   1.8
Ram 1      0.7     0.5        1.3   2.0
Touchdown  1.1     1.0        1.0   7.7
Victa      1.3     1.0        0.8   0.5
Viva       1.5     0.4        2.2   0.5
LSD (.05)  0.17    0.50       0.70  0.76
______________________________________
 *Rating Scale: 0-9; 9 = most hairs
 **Rating Scale: 0-9; 9 = most color

              TABLE 7
______________________________________
Morphological Comparison of Peduncles, Culms, Nodes Per Culm
and Top Internode Length of Ba74-17 and Other Kentucky
Bluegrass Varieties in the Greenhouse at Marysville, OH
Peduncle         Culm              Top
        Length   Width   Length Nodes  Internode
Variety cm       mm      cm     Per Culm
                                       length (cm)
______________________________________
Ba74-17 20.7     0.76    31.0   3.1    7.6
Abbey   23.2     0.65    41.3   4.1    11.0
Adelphi 24.5     0.66    40.0   4.0    10.4
Allure  17.9     0.61    28.0   3.1    7.7
Ascot   20.0     0.64    36.3   3.0    12.7
Baron   34.0     0.70    52.8   4.2    12.8
Bristol 22.9     0.73    43.5   4.0    12.6
Buckingham
        24.7     0.71    44.9   3.7    13.4
Cannon  24.3     0.81    39.5   3.1    10.8
Chateau 20.7     0.61    38.9   4.4    9.9
Coventry
        19.6     0.49    34.7   4.5    7.9
Eclipse 23.7     0.66    39.2   4.9    9.9
Georgetown
        21.7     0.68    37.5   3.2    11.1
Gnome   19.4     0.84    35.3   3.1    9.2
Kelly   29.4     0.75    46.6   3.6    11.8
Midnight
        20.5     0.72    29.5   2.8    7.6
Nassau  25.0     0.66    36.0   3.9    7.4
Nottingham
        26.9     0.82    39.7   2.9    9.7
Ram 1   22.2     0.69    30.5   2.5    6.6
Touchdown
        23.6     0.52    38.0   4.0    8.4
Victa   21.2     0.81    37.9   3.7    10.3
Viva    26.4     0.70    42.7   4.1    9.2
LSD (.05)
        3.2      0.08    3.3    0.4    1.9
______________________________________

              TABLE 8
______________________________________
Morphological Comparison of Vegetative Leaves of Ba74-17 and Other
Kentucky Bluegrass Varieties in the Greenhouse at Marysville,
______________________________________
OH
Leaf
        Length   Width    Thickness
Variety cm       mm       mm     Angle* Curve***
______________________________________
Ba74-17 19.3     3.0      0.30   51.9   7.3
Abbey   20.7     3.6      0.28   51.3   7.4
Adelphi 19.4     3.7      0.28   67.0   4.6
Allure  18.1     3.5      0.30   53.0   6.2
Ascot   17.4     3.4      0.35   67.9   5.5
Baron   18.2     4.3      0.29   35.0   4.4
Bristol 18.2     3.7      0.32   65.5   6.9
Buckingham
        18.9     4.5      0.36   50.9   5.0
Cannon  22.1     3.3      0.30   62.5   8.2
Chateau 23.1     3.3      0.33   39.7   5.4
Coventry
        23.4     3.6      0.25   63.0   7.3
Eclipse 20.3     4.4      0.30   65.5   5.4
Georgetown
        19.5     3.6      0.29   56.7   5.8
Gnome   18.2     2.9      0.29   43.2   6.6
Kelly   22.8     3.9      0.30   55.5   7.0
Midnight
        19.5     3.5      0.31   63.3   5.0
Nassau  16.3     3.7      0.29   63.2   4.9
Nottingham
        18.6     3.8      0.34   61.6   7.7
Ram 1   19.1     3.6      0.27   70.8   6.5
Touchdown
        16.7     3.7      0.24   51.3   4.0
Victa   21.5     3.6      0.36   56.3   6.7
Viva    22.9     3.8      0.40   53.0   7.1
LSD (.05)
        3.5      0.43     0.04   15.9   1.5
______________________________________
         Ligule     Hairs***
           Length  Leaf      Leaf  Color***
______________________________________
Ba74-17    0.14    3.5       0.9   2.0
Abbey      0.32    4.4       2.8   0.0
Adelphi    0.34    2.6       3.4   0.0
Allure     0.14    2.0       1.6   1.9
Ascot      0.22    1.5       2.0   1.4
Baron      0.33    4.6       3.6   0.4
Bristol    0.12    2.6       3.0   2.0
Buckingham 0.14    3.3       2.6   2.0
Cannon     0.16    3.2       0.7   2.0
Chateau    0.22    3.3       3.1   0.5
Coventry   0.32    3.1       2.4   0.3
Eclipse    0.38    2.8       2.6   0.2
Georgetown 0.14    2.5       2.4   2.0
Gnome      0.23    1.6       0.8   1.4
Kelly      0.34    4.6       2.4   0.0
Midnight   0.10    1.3       1.6   2.0
Nassau     0.34    2.5       3.3   1.4
Nottingham 0.21    3.1       2.0   1.4
Ram 1      0.09    1.8       1.0   2.0
Touchdown  0.29    1.4       1.3   8.0
Victa      0.26    2.3       1.7   0.1
Viva       0.23    5.2       4.2   0.0
LSD (.05)  0.04    0.8       0.6   0.6
______________________________________
 *Leaf Angle: Degrees from stem
 **Leaf Curve: 1-9; 1-4 = curves up; 5 = no curve; 6-9  = curves down
 ***Leaf Hairs: 0-9; 0 = none; 9 = many
 ****Sheath Color: 0-9; 0 = none; 9 = many
With regard to comparative analysis conducted for purposes of determining color of Ba74-17 plants relative to other Kentucky Bluegrass varieties, readings were taken of the vegetative color of Ba74-17 during mid-October while the turf was actively growing with adequate nutrient and water availability. The readings were taken in full sun with several actively growing leaves being compared, one at a time, utilizing color chips from the Munsell Book of Color as a reference. On this basis, the color of Ba74-17 was determined to be 5 GY 4/6. During the same time period, the color of similar leaves of other Kentucky Bluegrass varieties were determined by the same procedure to be as follows: Ascot--5 GY 4/4; Buckingham--7.5 GY 4/4; Ba77-700--5 GY 4/6; Midnight--7.5 GY 4/4; Abbey--5 GY 4/6; and and Victa--5 GY 4/4. However, it should be noted that the general apparent color of turf does not always correlate directly with the color of the individual actively growing leaves within the turf and that turf color varies with nutrient level and time of year with some varieties being darker or lighter green depending on such factors.
Comparisons of Ba74-17 with other Kentucky Bluegrass varieties for quality, genetic color, spring greenup, winter color, leaf texture, percent living ground, drought tolerance, canopy height, nitrogen deficiency, flood recovery and seedheads are set forth hereinafter in Tables 9-20.
              TABLE 9
______________________________________
A Comparison of Quality of Ba74-17 and Other Kentucky
Bluegrass Varieties under Low Maintenance in Five (5) Tests
A-E conducted at various Locations in the US.
         TESTS (Mean Values)
Variety    A        B      C       D    E
______________________________________
Ba74-17    5.3      4.9    4.4     4.6  3.9
Baron      5.3      5.0    4.5     4.6  4.1
Gnome      5.2      4.6    4.4     4.7  4.1
Haga       5.3      4.8    4.6     4.5  4.1
Kenblue    4.5      4.2    4.3     4.0  3.3
Liberty    5.2      5.0    4.5     4.4  3.9
Merion     4.3      4.6    4.2     4.5  3.9
Merit      5.4      4.9    4.5     4.6  4.1
Midnight   5.7      5.6    4.7     4.9  4.2
Monopoly   5.2      5.0    4.6     4.9  4.0
Park       4.6      4.2    4.1     4.1  3.8
Ram 1      5.5      5.1    4.7     4.9  4.6
South Dakota
           4.1      3.9    3.9     3.9  3.3
LSD (0.05) 0.3      0.3    0.3     0.3  0.4
______________________________________
 Rating Scale: 1-9; 9 = Ideal Turf

              TABLE 10
______________________________________
A Comparison of Quality of Ba74-17 and Other Kentucky
Bluegrass Varieties under Low Maintenance at Four (4)
Locations in the US.
       Test Locations
         Rathdrum  St. Louis
                            Pittstown
                                     Washington
Variety  Idaho     Missouri New Jersey
                                     DC
______________________________________
Ba74-17  6.3       6.4      6.4      4.1
Baron    6.5       6.6      6.0      3.1
Gnome    6.1       6.3      5.7      3.1
Haga     6.7       6.0      5.1      3.2
Kenblue  4.5       5.1      3.7      3.2
Liberty  6.6       6.1      5.3      3.4
Merion   5.9       6.1      3.4      1.7
Merit    6.4       6.5      6.0      3.3
Midnight 7.2       7.8      6.7      2.4
Monopoly 4.9       5.5      4.8      3.9
Park     4.6       5.0      3.9      3.3
Ram 1    7.1       6.9      6.2      2.8
South Dakota
         4.0       4.5      3.5      2.3
LSD (0.05)
         0.9       0.8      0.7      1.0
______________________________________
 Rating Scale: 1-9; 9 = Ideal Turf

              TABLE 11
______________________________________
A Comparison of Genetic Color of Ba74-17 and Other Kentucky
Bluegrass Varieties under Low Maintenance at Seven (7) Locations in US.
Color Ratings By Locations
        Rath-  St.          North  Marys-
                                         Univ.
                                              Nor-
        drum   Louis  Lincoln
                            Brunswick
                                   ville Park ton
Variety ID     MO     NE    NJ     OH    PA   VA
______________________________________
74-17   7.2    6.7    6.4   7.0    7.2   6.4  6.3
Baron   6.0    6.9    6.4   6.3    7.5   6.3  6.5
Gnome   6.8    6.7    6.6   5.3    7.5   6.1  6.7
Haga    3.3    5.6    5.8   4.3    6.3   5.4  5.0
Kenblue 4.5    6.2    5.6   3.7    7.2   5.7  3.7
Liberty 6.0    6.6    6.0   5.3    7.0   5.8  5.7
Merion  5.7    6.3    5.8   5.3    7.0   5.8  5.0
Merit   6.5    6.6    6.4   5.7    7.2   6.2  6.7
Midnight
        7.3    7.3    7.4   7.3    8.2   8.0  7.2
Monopoly
        2.3    5.8    5.4   3.7    6.0   4.9  5.0
Park    4.0    5.3    5.3   3.0    6.5   4.9  4.0
Ram 1   7.2    7.2    6.0   6.0    7.3   6.1  5.8
South   4.8    5.8    5.2   3.7    7.0   5.9  4.3
LSD (0.05)
        1.6    1.0    0.7   1.2    0.5   0.9  0.9
______________________________________
 Genetic Color Rating Scale: 1-9; 9 = Dark

              TABLE 12
______________________________________
A Comparison of Spring Greenup Ba74-17 and Other
Kentucky Bluegrass Varieties under Low Maintenance
at Two (2) locations in the US.
Variety       Rathdrum ID
                        Univ. Park, PA
______________________________________
Ba74-17       7.0       3.3
Baron         6.3       2.7
Gnome         6.0       3.0
Haga          5.3       2.3
Kenblue       2.7       1.3
Liberty       5.7       2.3
Merion        7.7       3.3
Merit         6.3       2.7
Midnight      8.3       2.3
Monopoly      2.7       1.7
Park          3.3       2.3
Ram 1         7.0       1.0
South Dakota  3.0       1.3
LSD (0.05)    1.8       0.8
______________________________________
 Spring Greenup Rating Scale: 1-9; 9 = Completely Green

              TABLE 13
______________________________________
A Comparison of Winter Color of Ba74-17 and Other
Kentucky Bluegrass Varieties under Low maintenance at Rathdrum, ID
                Winter
       Variety  Color
______________________________________
       Ba74-17  7.0
       Baron    6.3
       Gnome    6.7
       Haga     6.3
       Kenblue  3.7
       Liberty  6.7
       Merion   7.7
       Merit    7.0
       Midnight 8.3
       Monopoly 3.7
       Park     5.3
       Ram 1    7.7
       South Dakota
                3.7
       LSD (0.05)
                1.5
______________________________________
 Winter Color Rating Scale: 1-9; 9 = Complete Color Retention

              TABLE 14
______________________________________
A Comparison of Leaf Texture of Ba74-17 and Other
Kentucky Bluegrass Varieties under Low Maintenance at
Two (2) Locations in the US.
                Rathdrum St. Louis
Variety         ID       MO
______________________________________
Ba74-17         6.3      5.3
Baron           5.7      5.8
Gnome           6.0      5.3
Haga            6.7      6.2
Kenblue         9.0      7.8
Liberty         7.3      5.9
Merion          6.0      5.5
Merit           5.7      5.1
Midnight        8.3      6.3
Monopoly        6.3      5.8
Park            8.0      6.7
Ram 1           7.3      6.4
South Dakota    8.3      6.8
LSD (0.05)      1.1      0.8
______________________________________
 Leaf Texture Rating Scale: 1-9; 9 = very fine

              TABLE 15
______________________________________
A Comparison of Percent Living Ground Cover in Spring of Ba74-17
and Other Kentucky Bluegrass Varieties under Low Maintenance at
the Washington Monument Grounds, DC.
Variety        % Cover
______________________________________
Ba74-17        41.7
Baron          25.0
Gnome          31.7
Haga           48.3
Kenblue        33.3
Liberty        43.3
Merion         10.0
Merit          20.0
Midnight       21.7
Monopoly       53.3
Park           33.3
Ram 1          36.7
South Dakota   11.7
LSD (0.05)     23.2
______________________________________

              TABLE 16
______________________________________
A Comparison of Drought Tolerance (Dormancy) of Ba74-17 and
Other Kentucky Bluegrass Varieties under Low Maintenance at
Beltsville, MD and Hubbard, OR.
                Beltsville
                         Hubbard
Variety         MD       OR
______________________________________
Ba74-17         6.3      5.3
Baron           4.7      2.0
Gnome           5.3      3.0
Haga            5.3      2.0
Kenblue         4.0      2.7
Liberty         3.0      3.0
Merion          6.0      4.7
Merit           5.7      4.0
Midnight        6.7      3.0
Monopoly        5.7      3.0
Park            4.7      3.3
Ram 1           5.7      4.0
South Dakota    5.7      3.7
LSD (0.05)      2.0      2.2
______________________________________
 Dormancy Rating Scale: 1-9; 9 = No Dormancy

              TABLE 17
______________________________________
A Comparison of Canopy Height
in Inches of Ba74-17 and Other Kentucky
Bluegrass Varieties under Low Maintenance at University Park, PA.
Variety       Height in Inches
______________________________________
Ba74-17       4.5
Baron         5.0
Gnome         5.2
Haga          6.2
Kenblue       7.3
Liberty       4.5
Merion        4.3
Merit         4.5
Midnight      3.2
Monopoly      7.0
Park          7.3
Ram 1         5.2
South Dakota  6.3
LSD (0.05)    1.4
______________________________________

              TABLE 18
______________________________________
A Comparison of Nitrogen
Deficiency Ratings of Ba74-17 and Other
Kentucky Bluegrass Varieties under Low Maintenance at Rathdrum, ID.
Variety       Nitrogen Deficiency
______________________________________
Ba74-17       6.3
Baron         6.3
Gnome         6.7
Haga          5.0
Kenblue       1.7
Liberty       6.7
Merion        3.7
Merit         5.3
Midnight      7.0
Monopoly      5.3
Park          4.0
Ram 1         7.3
South Dakota  1.7
LSD (0.05)    2.1
______________________________________
 Nitrogen Deficiency Rating Scale: 1-9; 9 = no symptoms

              TABLE 19
______________________________________
A Comparison of Flood Recovery
Ratings of Ba74-17 and Other Kentucky
Bluegrass Varieties under Low Maintenance at Lincoln, NE.
Variety       Flood Recovery
______________________________________
Ba74-17       5.7
Baron         3.3
Gnome         4.0
Haga          1.7
Kenblue       2.3
Liberty       3.3
Merion        5.3
Merit         4.0
Midnight      4.3
Monopoly      1.7
Park          1.7
Ram 1         2.3
South Dakota  2.0
LSD (0.05)    3.2
______________________________________
 Flood Recovery Rating Scale: 1-9; 9 = best

              TABLE 20
______________________________________
A Comparison of
Seedheads of Ba74-17 and Other Kentucky
Bluegrass Varieties under Low Maintenance at North Brunswick, NJ.
Variety        Seedheads
______________________________________
Ba74-17        2.3
Baron          3.0
Gnome          3.7
Haga           4.7
Kenblue        9.0
Liberty        4.0
Merion         4.0
Merit          2.0
Midnight       9.0
Monopoly       6.0
Park           9.0
Ram 1          6.3
South Dakota   8.7
LSD (0.05)     1.8
______________________________________
 Seedhead Rating Scale: 1-9; 9 = none
Turf diseases are one of the major causes of inconsistent and poor turf performance. Ba74-17 has been found to have a medium to high level of resistance to the following diseases: (a) leaf spot and melting out caused by Drechslera poae formerly called Helminthosporium vagans; (b) diseases such as leaf rust caused by Puccinia spp; (c) Fusarium patch caused by Fusarium spp; and (d) red thread caused by Laetisaria fuciformis.
Compounds of disease incidence of Ba74-17 as compared with other Kentucky Bluegrass Varieties in regard to leaf spot, melting out, leaf rust, Fusarium patch and red thread are presented in Tables 21-26.
              TABLE 21
______________________________________
A Comparison of Leaf Spot Incidence
of Ba74-17 and Other Kentucky Bluegrass
Varieties under Low Maintenance at Five (5) Locations in the US.
       N. Brunswick
                  Pittstown
                           Marysville
                                  Beltsville
                                         Norton
Variety
       NJ          NJ      OH     MD     VA
______________________________________
Ba74-17
       4.7        5.7      6.0    4.0    5.7
Baron  4.7        5.3      6.7    4.0    4.0
Gnome  3.7        4.0      6.3    3.3    4.7
Haga   2.7        3.3      6.3    3.3    4.3
Kenblue
       1.0        1.0      3.3    1.3    2.3
Liberty
       4.7        4.7      7.3    3.7    5.7
Merion 5.7        6.3      6.0    3.3    6.0
Merit  4.3        4.7      6.7    4.3    5.0
Midnight
       7.7        7.3      7.7    6.7    6.3
Monopoly
       3.3        3.3      5.7    3.7    4.0
Park   2.0        2.7      4.0    2.0    3.7
Ram 1  4.3        3.7      6.7    4.7    4.3
South  1.0        1.3      3.3    1.0    4.0
LSD (0.05)
       1.4        1.5      1.0    1.2    1.7
______________________________________
 Leaf Spot Rating Scale: 1-9; 9 = no disease

              TABLE 22
______________________________________
A Comparison of Leaf Spot Incidence
of Ba74-17 and Other Kentucky Bluegrass
Varieties under Low Maintenance at Pittstown, NJ and Ithaca, NY
Variety        Pittstown NJ
                          Ithaca NY
______________________________________
Ba74-17        5.7        9.0
Baron          5.3        9.0
Gnome          4.0        9.0
Haga           3.3        8.0
Kenblue        1.0        1.3
Liberty        4.7        8.3
Merion         6.3        8.0
Merit          4.7        7.3
Midnight       7.3        9.0
Monopoly       3.3        5.0
Park           2.7        2.3
Ram 1          3.7        3.7
South Dakota   1.3        4.3
LSD (0.05)     1.5        2.7
______________________________________
 Leaf Spot Rating Scale: 1-9; 9 = No Disease

              TABLE 23
______________________________________
A Comparison of Melting Out
Incidence of Ba74-17 and Other Kentucky
Bluegrass Varieties under Low Maintenance at Rathdrum, ID.
Variety        Melting Out
______________________________________
Ba74-17        6.0
Baron          7.0
Gnome          5.3
Haga           6.3
Kenblue        4.0
Liberty        6.3
Merion         6.0
Merit          6.7
Midnight       8.0
Monopoly       5.0
Park           4.3
Ram 1          8.0
South Dakota   4.0
LSD (0.05)     1.5
______________________________________
 Melting Out Rating Scale: 1-9; 9 = No Damage

              TABLE 24
______________________________________
A Comparison of Leaf Rust
Incidence of Ba74-17 and Other Kentucky
Bluegrass Varieties under Low Maintenance at Rathdrum, ID.
Variety        Leaf Rust
______________________________________
Ba74-17        7.3
Baron          6.0
Gnome          8.0
Haga           5.7
Kenblue        4.3
Liberty        6.5
Merion         3.7
Merit          6.3
Midnight       5.7
Monopoly       3.0
Park           2.7
Ram 1          7.7
South Dakota   3.7
LSD (0.05)     1.7
______________________________________
 Leaf Rust Rating Scale: 1-9; 9 = No Disease

              TABLE 25
______________________________________
A Comparison of Fusarium Patch
Incidence of Ba74-17 and Other Kentucky
Bluegrass Varieties under Low Maintenance at Rathdrum, ID.
Variety        Fusarium Patch
______________________________________
Ba74-17        5.7
Baron          4.3
Gnome          6.0
Haga           4.7
Kenblue        2.3
Liberty        6.0
Merion         3.3
Merit          5.7
Midnight       4.7
Monopoly       3.3
Park           1.7
Ram 1          6.0
South Dakota   2.7
LSD (0.05)     1.8
______________________________________
 Fusarium Patch Rating Scale: 1-9; 9 = No Disease

              TABLE 26
______________________________________
A Comparison of Red Thread
Incidence of Ba74-17 and Other Kentucky Bluegrass
Varieties under Low Maintenance at Kingston, RI and Marysville, OH.
Variety        Kingston RI
                         Marysville OH
______________________________________
Ba74-17        7.0       8.0
Baron          7.0       7.7
Gnome          5.7       8.0
Haga           6.3       8.0
Kenblue        3.7       4.7
Liberty        7.7       8.0
Merion         8.3       7.7
Merit          7.0       8.0
Midnight       6.3       7.7
Monopoly       6.0       7.7
Park           6.0       6.0
Ram 1          7.3       7.3
South Dakota   6.7       7.7
LSD (0.05)     2.1       1.2
______________________________________
 Red Thread Rating Scale: 1-9; 9 = no disease
Additional comparisons for mature plant height, vegetative growth versus seed heads, panicle length, days to heading, days to anthesis and seed yields are presented in Tables 27-32.
              TABLE 27
______________________________________
A Comparison of Mature Plant Height
of Ba74-17 and Other Kentucky Bluegrass Varieties at Gervais, OR.
       Variety Height cm
______________________________________
       Ba74-17 62.2
       Ba78-258
               60.3
       Ba77-700
               60.0
       Ba78-165
               53.4
       Abbey   65.0
       Allure  53.0
       Ascot   56.0
       Bristol 69.4
       Buckingham
               66.8
       Cannon  68.4
       Chateau 60.2
       Coventry
               62.4
       Estate  57.4
       Fairfax 60.6
       Gnome   60.8
       Kelly   65.2
       Newport 74.9
       Victa   68.2
       Viva    61.6
       LSD (0.05)
                8.7
______________________________________

              TABLE 28
______________________________________
A Comparison of Vegetative Growth Versus Seed Heads
of Ba74-17 and Other Kentucky Bluegrass Varieties at Gervais, OR.
Variety    Vegatative Growth vs Seed Heads
______________________________________
Ba74-17    5.6
Ba78-258   6.9
Ba77-700   7.2
Ba78-165   5.8
Abbey      5.8
Allure     7.2
Ascot      4.2
Bristol    6.0
Buckingham 5.6
Cannon     8.0
Chateau    6.8
Coventry   8.0
Estate     8.6
Fairfax    7.2
Gnome      6.6
Kelly      4.8
Newport    3.4
Victa      7.8
Viva       7.2
LSD (0.05) 1.8
______________________________________
 Vegetative Growth versus Seed Heads Rating Scale: 1-9; 9 = Most Vegetativ
 Growth

              TABLE 29
______________________________________
A Comparison of Panicle Length
of Ba74-17 and Other Kentucky Bluegrass Varieties at Gervais, OR.
Variety      Panicle Length (cm)
______________________________________
Ba74-17      9.3
Ba78-258     11.1
Ba77-700     8.9
Ba78-165     8.6
Abbey        10.4
Allure       7.8
Ascot        9.5
Bristol      13.6
Buckingham   11.9
Cannon       9.9
Chateau      7.7
Coventry     7.8
Estate       8.3
Fairfax      9.1
Gnome        9.7
Kelly        9.7
Newport      10.8
Victa        10.0
Viva         9.8
LSD (0.05)   2.0
______________________________________

              TABLE 30
______________________________________
A Comparison of Days to Heading
of Ba74-17 and Other Kentucky Bluegrass Varieties at Gervais, OR.
         Days to Heading
Variety    First        50%    100%
______________________________________
Ba74-17    103.0        119.2  122.0
Ba78-258   110.1        125.5  128.1
Ba77-700   109.8        125.4  127.2
Ba78-165   100.2        118.6  121.6
Abbey      108.2        124.2  127.2
Allure     110.6        125.0  126.2
Ascot      88.0         112.0  118.6
Bristol    95.4         118.6  122.2
Buckingham 94.0         112.4  120.0
Cannon     113.4        125.0  127.0
Chateau    106.0        123.8  126.0
Coventry   105.8        122.4  124.6
Estate     105.8        123.8  125.6
Fairfax    102.6        121.6  124.4
Gnome      109.8        125.4  127.2
Kelly      112.2        125.4  127.2
Newport    85.0         109.8  118.2
Victa      111.6        125.0  127.0
Viva       109.4        125.0  127.2
LSD (0.05) 5.3          4.0    1.8
______________________________________

              TABLE 31
______________________________________
A Comparison of Days to Anthesis
of Ba74-17 and Other Kentucky Bluegrass Varieties at Gervais, OR.
         Days to Anthesis
Variety    First        50%    100%
______________________________________
Ba74-17    125.0        127.0  132.0
Ba78-258   129.1        134.1  137.5
Ba77-700   129.0        134.4  137.8
Ba78-165   124.2        126.2  132.0
Abbey      129.2        132.4  136.6
Allure     127.8        131.0  134.8
Ascot      118.6        123.8  131.8
Bristol    124.6        126.6  132.0
Buckingham 123.4        127.6  133.6
Cannon     129.0        132.2  136.0
Chateau    128.2        130.8  135.2
Coventry   126.6        128.6  134.4
Estate     127.0        129.2  135.2
Fairfax    125.8        128.8  132.8
Gnome      129.0        133.2  136.6
Kelly      129.0        132.8  136.6
Newport    120.4        123.4  131.4
Victa      129.0        132.2  136.0
Viva       129.0        132.8  136.6
LSD (0.05) 2.1          2.5    1.8
______________________________________

              TABLE 32
______________________________________
A Comparison of Seed Yields of Ba74-17 and Other Kentucky
Bluegrass Varieties in Three (3) Tests Conducted at Imbler, OR.
         Seed Yield (Lb./acre)
Variety    Test 1       Test 2  Test 3
______________________________________
Ba74-17    1,433        1,238   1,284
Ba78-258   1,377        1,211   1,076
Ba77-700   1,569        1,105   1,156
Abbey      1,549        1,324   1,090
Buckingham   748          923     740
Cannon     1,551        1,130   1,171
Coventry   1,046          839     847
Fairfax    1,159        1,074     766
Viva       1,612        1,111   1,054
LSD (0.05)   160          271     296
______________________________________

Claims (1)

What is claimed is:
1. A variety of Kentucky Bluegrass, substantially as shown and described, characterized by a medium to high level of resistance to a broad spectrum of serious diseases including leaf spot and melting out, leaf rust, Fusarium patch and red thread; a dark green color throughout the growing season; a medium to high quality turf formation under a wide variety of environmental conditions; short growth and a high level of seed yielding capacity.
US08/949,938 1997-10-14 1997-10-14 Kentucky Bluegrass, named `Ba74-17` Expired - Lifetime USPP10925P (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USPP12435P2 (en) 2000-11-10 2002-03-05 Oms Investments, Inc. Kentucky bluegrass designated ‘Ba81-227’
USPP18439P2 (en) 2005-08-19 2008-01-15 Oms Investments, Inc. Hybrid variety of (Texas Bluegrass×Kentucky Bluegrass)×Kentucky Bluegrass designated ‘HB 329’
USPP18467P2 (en) 2004-08-06 2008-01-29 Oms Investments, Inc. Hybrid variety of Texas X kentucky bluegrass designated ‘HB 129’
USPP21045P2 (en) 2008-02-22 2010-06-01 Smg Brands, Inc. Hybrid variety of Texas×Kentucky bluegrass designated ‘HB 128’

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USPP4336P (en) * 1977-12-27 1978-11-28 The O. M. Scott & Sons Company Kentucky bluegrass
USPP6280P (en) * 1986-09-19 1988-09-06 The O.M. Scott & Sons Company Kentucky bluegrass
USPP6537P (en) * 1987-03-17 1989-01-17 The O. M. Scott & Sons Company Kentucky bluegrass `Ba 72-492`
USPP6538P (en) * 1987-03-17 1989-01-17 The O.M. Scott & Sons Company Kentucky bluegrass--BA 70-139
USPP6585P (en) * 1987-05-29 1989-02-07 The O. M. Scott & Sons Company Kentucky bluegrass
USPP7831P (en) * 1990-06-22 1992-03-17 The O.M. Scott & Sons Company, Inc. Ba 73-626 Kentucky Bluegrass
USPP8490P (en) * 1992-01-14 1993-12-07 The O. M. Scott & Sons Company BA 73-540 Kentucky Bluegrass
USPP9036P (en) * 1993-09-23 1995-01-03 The O. M. Scott And Sons Company BA 73-366 Kentucky bluegrass
USPP9209P (en) * 1994-09-19 1995-07-18 Oms Investments, Inc. `BA 73-381` Kentucky bluegrass
USPP9611P (en) * 1995-05-30 1996-07-23 Oms Investments, Inc. `Ba 69-82 ` Kentucky Bluegrass
USPP9848P (en) * 1995-09-25 1997-04-01 Oms Investments, Inc. `BA-74-114` Kentucky Bluegrass
USPP9977P (en) * 1996-02-23 1997-07-22 Oms Investments, Inc. Ba 77-279 Kentucky Bluegrass

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USPP4336P (en) * 1977-12-27 1978-11-28 The O. M. Scott & Sons Company Kentucky bluegrass
USPP6280P (en) * 1986-09-19 1988-09-06 The O.M. Scott & Sons Company Kentucky bluegrass
USPP6537P (en) * 1987-03-17 1989-01-17 The O. M. Scott & Sons Company Kentucky bluegrass `Ba 72-492`
USPP6538P (en) * 1987-03-17 1989-01-17 The O.M. Scott & Sons Company Kentucky bluegrass--BA 70-139
USPP6585P (en) * 1987-05-29 1989-02-07 The O. M. Scott & Sons Company Kentucky bluegrass
USPP7831P (en) * 1990-06-22 1992-03-17 The O.M. Scott & Sons Company, Inc. Ba 73-626 Kentucky Bluegrass
USPP8490P (en) * 1992-01-14 1993-12-07 The O. M. Scott & Sons Company BA 73-540 Kentucky Bluegrass
USPP9036P (en) * 1993-09-23 1995-01-03 The O. M. Scott And Sons Company BA 73-366 Kentucky bluegrass
USPP9209P (en) * 1994-09-19 1995-07-18 Oms Investments, Inc. `BA 73-381` Kentucky bluegrass
USPP9611P (en) * 1995-05-30 1996-07-23 Oms Investments, Inc. `Ba 69-82 ` Kentucky Bluegrass
USPP9848P (en) * 1995-09-25 1997-04-01 Oms Investments, Inc. `BA-74-114` Kentucky Bluegrass
USPP9977P (en) * 1996-02-23 1997-07-22 Oms Investments, Inc. Ba 77-279 Kentucky Bluegrass

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USPP12435P2 (en) 2000-11-10 2002-03-05 Oms Investments, Inc. Kentucky bluegrass designated ‘Ba81-227’
USPP18467P2 (en) 2004-08-06 2008-01-29 Oms Investments, Inc. Hybrid variety of Texas X kentucky bluegrass designated ‘HB 129’
USPP18439P2 (en) 2005-08-19 2008-01-15 Oms Investments, Inc. Hybrid variety of (Texas Bluegrass×Kentucky Bluegrass)×Kentucky Bluegrass designated ‘HB 329’
USPP21045P2 (en) 2008-02-22 2010-06-01 Smg Brands, Inc. Hybrid variety of Texas×Kentucky bluegrass designated ‘HB 128’

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