USPP10745P - Apple tree named `M9-RN8` - Google Patents
Apple tree named `M9-RN8` Download PDFInfo
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- USPP10745P USPP10745P US07/995,334 US99533492V US10745P US PP10745 P USPP10745 P US PP10745P US 99533492 V US99533492 V US 99533492V US 10745 P US10745 P US 10745P
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- 235000011430 Malus pumila Nutrition 0.000 title claims abstract 9
- 235000015103 Malus silvestris Nutrition 0.000 title claims abstract 9
- 244000141359 Malus pumila Species 0.000 title claims abstract 5
- 241000196324 Embryophyta Species 0.000 claims abstract description 30
- 241001480175 Angophora hispida Species 0.000 claims 1
- 241000220225 Malus Species 0.000 abstract description 11
- 230000001154 acute effect Effects 0.000 abstract description 5
- 230000035772 mutation Effects 0.000 abstract description 2
- 230000000644 propagated effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 10
- 210000003746 feather Anatomy 0.000 description 6
- 235000013399 edible fruits Nutrition 0.000 description 4
- 241000700605 Viruses Species 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 241000607479 Yersinia pestis Species 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002420 orchard Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 231100000241 scar Toxicity 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000011890 leaf development Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
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Classifications
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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
- A01H6/00—Angiosperms, i.e. flowering plants, characterised by their botanic taxonomy
- A01H6/74—Rosaceae, e.g. strawberry, apple, almonds, pear, rose, blackberries or raspberries
- A01H6/7418—Malus domestica, i.e. apples
Definitions
- the subject clone is a sport of Malling 9 MM9), an unpatented apple rootstock clone.
- the original plant was selected as a mutation in 1967 from a large stoolbed of M9 plants.
- the stoolbed had been planted in 1960 and was growing in the Rene Nicolai nursery, Linderstroot, 22-B-3820 Alken, Belgium.
- the original source of the bed was the East Malling Research Station in England.
- the clone was one of a group of clones that were selected by Mr. Nicolai and other rootstock specialists for their differences in lateral branching, leaf development and shape, leaf color, thickness of the shoots, rooting ability in the stoolbed, bloom characteristics and other noticed differences from the mother stoolbed plants.
- the clone was assigned a number (RN8) and was propagated for further testing and evaluation.
- RN8 stocks were subsequently heat-treated by application of dry heat in order to obtain virus-free specimens. After heat treatment and subsequent virus testing, the new rootstock clone was again exposed to multiplication techniques (stooling) followed by continued testing and evaluation.
- Virus-free RN8 progeny plants were expanded into small stoolbed plantings which were planted separately rately in order to examine the new rootstocks's individual characteristics in small semi-commercial stoolbed sites.
- Clone RN8 was subsequently finally selected as a rootstock clone that continues to possess growth and rooting characteristics that are distinctly different from its M9 parent.
- the subject clone produces fewer lateral limbs (feathers) than its M9 parent.
- feathers produced were about one half the number produced on its M9 parent (FIGS. 1 and 2; Tables 1 and 2).
- RN8 grows less robustly in the stoolbed and exhibits a shorter, stockier growth characteristic when compared to its M9 parent (FIG. 4, M9; and FIG. 5, RN8). Nodes are spaced closer together on shoots and average stem circumference is significantly more than the average stem Circumference of M9 (Table 2).
- the average length of feathers on RN8 was slightly less than the average length of feathers on its M9 parent (Table 2).
- Leaves of the subject clone are larger and more rounded in shape and leaf margins are more sinuate than those of M9.
- Leaves of RN8 are round to oval in shape with broadly acute tips. Theis leaf characteristic is very pronounced in the older leaves (FIG. 3; Table 3).
- Rooting ability (number and quantity of roots produced per length of stoolbed shank) of the subject clone is significantly more than that demonstrated strated by its M9 parent. Also, the average number of rooted plants produced per stoolbed mother plant and/or per meter of stoolbed row is significantly more than the average produced by M9 mother stocks (Table 5 , 6 and 7). This difference in number of rooted daughter plants was approximately two-fold at the test site near Bordeaux, France after five years in the stoolbed (Table 7). These characteristics are stable and have been transmitted without change through succeeding generations.
- FIGS. 1 and 2 show the absence of lateral brancess (feathers) on daughter stoolbed plants.
- FIG. 3 shows the round- to oval-shaped leaves, broadly acute tips and sinuate leaf serration.
- FIG. 4 shows the average height in centimeters of M9 rootstock daughter plants in a stoolbed row in Ephrata, Wash.
- FIG. 5 shows the average height in centimeters of RN8 rootstock daughter plants in a stoolbed row in Ephrata Wash.
- Lenticels.--Few inconspicuous, widely spaced, small, white.
- Rooting and stooling Multiplies well in stoolbeds, forming strong roots along full length of shank. Roots arise from nodes.
- Rootsuckering Few rootsuckers.
- Size control potential Size of trees budded on the subject rootstocks will vary according to the vigor of the cultivar and/or type of soil and orchard management. "Standard" growing cultivars such as Red and Golden Delicious are reduced in size about 70% when compared to apple seedling rootstocks. Less vigorous varieties are more reduced in size and more vigorous varieties are less reduced in size.
- Precocity Varies according to variety, most cultivars often flower and set fruit the first year in the orchard and thereafter bear fruit each year.
- Compatibility Graft compatible with all major commerical fruiting varieties.
- Root Anchorage Needs support.
- Disease and pest resistance Average resistance to common diseases and pests of apple. Tested and found free of all known virus diseases to apple.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Physiology (AREA)
- Botany (AREA)
- Developmental Biology & Embryology (AREA)
- Environmental Sciences (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
Abstract
This invention relates to a new and distinct apple tree rootstock clone which is useful as a size-controlling rootstock. The new clone originated as a mutation of Malling 9 (M9), an unpatented dwarfing apple rootstock, Standard growing apple cultivars propagated on this new rootstock are approximately 70 % of the size of like apple trees growing on apple seedling rootstocks. In the stoolbed the clone produces few lateral limbs, large round to oval leaves with broadly acute tips and possesses a pronounced, profuse blooming characteristic. The clone produces a larger number of rooted plants in the stoolbed.
Description
The subject clone is a sport of Malling 9 MM9), an unpatented apple rootstock clone. The original plant was selected as a mutation in 1967 from a large stoolbed of M9 plants. The stoolbed had been planted in 1960 and was growing in the Rene Nicolai nursery, Linderstroot, 22-B-3820 Alken, Belgium. The original source of the bed was the East Malling Research Station in England. The clone was one of a group of clones that were selected by Mr. Nicolai and other rootstock specialists for their differences in lateral branching, leaf development and shape, leaf color, thickness of the shoots, rooting ability in the stoolbed, bloom characteristics and other noticed differences from the mother stoolbed plants.
Following its selection, the clone was assigned a number (RN8) and was propagated for further testing and evaluation.
Since all original M9 rootstocks have been found to be virus infected, RN8 stocks were subsequently heat-treated by application of dry heat in order to obtain virus-free specimens. After heat treatment and subsequent virus testing, the new rootstock clone was again exposed to multiplication techniques (stooling) followed by continued testing and evaluation.
Virus-free RN8 progeny plants were expanded into small stoolbed plantings which were planted separately rately in order to examine the new rootstocks's individual characteristics in small semi-commercial stoolbed sites.
These small experimental stoolbeds of RN8 were established for such further evaluations as follows:
1. A site at Deveaux, Belgium was planted in the spring of 1974 with 555 plants of the subject clone.
2. A site at Bordeaux, France was planted in 1977 with 200 plants of the subject clone.
3. A site at Wissenhoeve, Belgium was planted in the spring of 1980 with 1,176 plants of the subject clone.
4. A site near St. Truiden, Belgium was planted in the spring of 1982 wtih 100 plants of the suject clone.
5. A site at Henkaenrts, Belgium was planted in the spring of 1986 with 4,600 plants of the subject clone.
6. A site at Ephrata, was planted in the spring of 1990 with 2,000 plants of the subject clone.
Clone RN8 was subsequently finally selected as a rootstock clone that continues to possess growth and rooting characteristics that are distinctly different from its M9 parent.
It distinguished itself in these beds from its M9 parent in the following ways:
1. The subject clone produces fewer lateral limbs (feathers) than its M9 parent. At the Bordeaux test site in France and at the Ephrata, Wash. site, feathers produced were about one half the number produced on its M9 parent (FIGS. 1 and 2; Tables 1 and 2). RN8 grows less robustly in the stoolbed and exhibits a shorter, stockier growth characteristic when compared to its M9 parent (FIG. 4, M9; and FIG. 5, RN8). Nodes are spaced closer together on shoots and average stem circumference is significantly more than the average stem Circumference of M9 (Table 2). The average length of feathers on RN8 was slightly less than the average length of feathers on its M9 parent (Table 2).
TABLE 1
______________________________________
Percent of Layer Plants with Side Limbs (Feathers)
(Test Stooling Beds at Bordeaux, France)
Rootstock Year
Clone 79/80 80/81 81/82 82/83
Average
______________________________________
M9 13 8 25 0 11.5
(virus-free)
RN8 8 6 13 0 6.8
RN19 41 32 44 19 34.0
RN29 39 22 35 15 27.8
______________________________________
TABLE 2
______________________________________
Growth Characteristics
(Test Stooling Beds at Ephrata, Washington)
Length Number Number
Length
Number Circum-
of of of of of ference
Rootstock
Shoot Nodes/ Spurs/
Spur Leaves/
of Stem
Clone (cm) Shoot Shoot (cm) Shoots (cm)
______________________________________
M9 66.80* 39.20 3.00 1.50 53.00 3.24
RN8 62.10 42.10 1.80 1.20 57.20 3.80
RN19 78.20 41.00 18.60 8.60 88.30 3.51
RN29 86.20 45.60 21.40 10.30 100.00 3.54
______________________________________
*All numbers shown are the average of 100 plants selected at random.
2. Leaves of the subject clone are larger and more rounded in shape and leaf margins are more sinuate than those of M9. Leaves of RN8 are round to oval in shape with broadly acute tips. Theis leaf characteristic is very pronounced in the older leaves (FIG. 3; Table 3).
TABLE 3
______________________________________
Leaf Size and Respetive Petiole
Length of Respective Rootstock
(Test Stooling Beds at Bordeaux, France)
Rootstock Length, L
Width, W L + W Length of
Clone (mm) (mm) (mm) Petiole
______________________________________
M9 101.7 63.8 165.5 32.5
(virus-free)
RN8 98.8 73.6 172.4 34.0
RN19 91.4 60.0 151.4 30.8
RN29 85.5 57.1 142.6 28.5
______________________________________
3. The profuse blooming characteristic of RN8 is very pronounced and in this respect differs distinctly from its M9 parent. The number of blooms produced on RN8 two-year-old line-out stocks was about two-fold that of its M9 parent (Table 4).
TABLE 4 ______________________________________ Bloom Characteristics (Research Station at Gorsum, Belgium - 1985) Rootstock % of Rootstocks With Bloom Clone (1 Year From Stoolbed) ______________________________________ RN8 29 RN19 4 RN29 0 M9 15 (virus-free) ______________________________________
4. Rooting ability (number and quantity of roots produced per length of stoolbed shank) of the subject clone is significantly more than that demonstrated strated by its M9 parent. Also, the average number of rooted plants produced per stoolbed mother plant and/or per meter of stoolbed row is significantly more than the average produced by M9 mother stocks (Table 5 , 6 and 7). This difference in number of rooted daughter plants was approximately two-fold at the test site near Bordeaux, France after five years in the stoolbed (Table 7). These characteristics are stable and have been transmitted without change through succeeding generations.
TABLE 5
______________________________________
RN8 Stoolbed Production (Deveaux, Belgium)
No. Mother Plants - 555
Length of Bed (m) - 185
______________________________________
Year 82/83 83/84 84/85 85/86 86/87
______________________________________
Grade (mm)
10/12 300 150 150 1,100 500
8/10 0 0 700 0 0
6/10 4,650 3,350 0 0 2,800
6/8 0 0 3,700 3,100 0
5/7 0 0 0 0 0
4/6 2,400 1,800 3,200 1,900 3,900
04 0 600 0 0 0
#2s 1,000 1,400 600 900 1,900
Totals 8,350 7,300 8,350 7,000 9,100
Per Mother Plant
15.05 13.15 15.05 12.61 16.40
Per Meter 45.14 39.46 45.14 37.84 49.19
______________________________________
Average
Year 87/88 88/89 89/90 90/91 82/91
______________________________________
Grade (mm)
10/12 675 200 0 0
8/10 925 1,925 850 2,225
6/10 0 0 0 0
6/8 3,300 2,700 3,000 0
5/7 0 0 0 3,450
4/6 2,700 1,200 3,400 1,600
04 0 0 0 0
#2s 1,300 1,100 3,400 700
Totals 8,900 7,125 10,650
7,975
Per Mother Plant
16.04 12.84 19.19 14.37 14.96
Per Meter 48.11 38.51 57.57 43.11 44.89
______________________________________
TABLE 6
______________________________________
M9 (Virus-Free) Stoolbed Production (Deveaux, Belgium)
No. Mother Plants - 561
Length of Bed (m) - 187
______________________________________
Year 82/83 83/84 84/85 85/86 86/87
______________________________________
Grade (mm)
10/12 225 100 250 750 464
8/10 0 0 450 0 0
6/10 4,150 2,950 0 2,350 2,200
6/8 0 0 3,400 0 0
5/7 0 0 0 0 0
4/6 1,800 1,600 2,200 1,600 3,000
04 0 300 0 0 0
#2s 700 800 500 500 1,400
Totals 6,875 5,750 6,800 5,200 7,064
Per Mother Plant
12.25 10.25 12.12 9.27 12.59
Per Meter 36.76 30.75 36.36 27.81 37.78
______________________________________
Average
Year 87/88 88/89 89/90 90/91 82/91
______________________________________
Grade (mm)
10/12 75 -- -- --
8/10 450 -- -- --
6/10 0 -- -- --
6/8 2,700 -- -- --
5/7 0 -- -- --
4/6 2,200 -- -- --
04 0 -- -- --
#2s 400 -- -- --
Totals 5,825 -- -- --
Per Mother Plant
10.38 -- -- -- 11.14
Per Meter 31.15 -- -- -- 33.43
______________________________________
TABLE 7
______________________________________
Average Number of Plants Per Stoolbed Mother Plant
(Test Stooling Beds at Bordeaux, France)
Year Planted and Age
Rootstock 79/80 80/81 81/82 82/83
Clone 2-Yr 3-Yr 4-Yr 5-Yr Average
______________________________________
M9 1.2 2.6 .5 4.0 8.3
(virus-free)
RN8 2.1 3.9 3.8 6.4 16.2
RN19 2.6 4.4 6.5 9.1 22.6
RN29 4.4 5.6 5.7 11.3 27.0
______________________________________
Since the subject clone is intended to be used only as rootstock for apple cultivar, the drawings center on the vegatative parts rather than the flowers and fruits.
FIGS. 1 and 2 show the absence of lateral brancess (feathers) on daughter stoolbed plants.
FIG. 3 shows the round- to oval-shaped leaves, broadly acute tips and sinuate leaf serration.
FIG. 4 shows the average height in centimeters of M9 rootstock daughter plants in a stoolbed row in Ephrata, Wash.
FIG. 5 shows the average height in centimeters of RN8 rootstock daughter plants in a stoolbed row in Ephrata Wash.
The following is a detailed description of the new apple rootstocks growth characteristics based on the stoolbed plants grown at the six test sites described above. Colors of the leaves and shoots are based on their appearance at the sites where grown. In those instances where a precise color assessment can be made, reference is to the Munsell Limit Color Cascade Table. In other instances, general color terms are used in accordance with the ordinary dictionary significance.
General habit:
Strength of growth.--Vigorous, stiff.
Habit.--Upright.
Branching.--Very few, flexible.
Vegatative Shoots:
Bark color.--Greenish-brown (21-15).
Pubescence.--Very finely tomentose.
Lenticels.--Few, inconspicuous, widely spaced, small, white.
Leaves:
Size.--7.4 cm wide, 10.0 cm long.
Shape.--Oval to round, slightly asymmetric.
Base.--Obtuse, attenuated.
Apex.--Broadly acute.
Serrations.--Sinuate at sides, very obtuse to lacking at base.
Spacing.--Normal phyllotaxical arrangement for Malus.
Color.--Light green (22-14) with pinkish tips.
Leaf scars:
Shape.--Broad V, slightly raised.
Color.--Brown.
Petioles:
Shape.--Slender, slightly channeled.
Length.--Medium, 3.4 cm.
Color.--Reddish-brown (32-12).
Pose.--Acute angle near tip, slightly acute to horizontal along sides.
Glands.--None.
Stipules:
Size.--Small, 3.5-5 mm, inconspicuous, minutely serrated.
Color.--Light green.
Pose.--Mostly reposed along petiole.
Lateral buds:
Size.--Small.
Shape.--Flat, angular.
Color.--Dark brown.
Pubescence.--Finely tomentose.
Apical buds:
Size.--Larger than lateral buds.
Shape.--Obtuse.
Color.--Dark brown.
Pubescence.--Tomentose.
Shoots:
Size.--Stocky, 6-10 mm in caliper at base, stiff, brittle.
Bark Color.--Dark brown (25-15-l ).
Pubescence.--Conspicuously pubescent.
Nodes.--Larger in diameter than internodes with slight shoulder at each side on leaf scar.
Internodes.--Smooth, regularly spaced.
Rooting and stooling: Multiplies well in stoolbeds, forming strong roots along full length of shank. Roots arise from nodes.
Habit of growth in stoolbed: Shoots arise from nodes, grow mostly outward at a slight angle.
Flowers:
Size.--3.5 cm in diameter.
Color.--White with pink streaks at base.
Fruit:No commercial value, but useful for identification. No
Shape.--Round to slightly oblong.
Color.--Red Stripes.
Size.--About 4.5 cm in diameter and about 5.5 cm in length.
Flavor.--Bland, tasteless.
Rootsuckering: Few rootsuckers.
Size control potential: Size of trees budded on the subject rootstocks will vary according to the vigor of the cultivar and/or type of soil and orchard management. "Standard" growing cultivars such as Red and Golden Delicious are reduced in size about 70% when compared to apple seedling rootstocks. Less vigorous varieties are more reduced in size and more vigorous varieties are less reduced in size.
Dwarfing: Fully dwarfing.
Precocity: Varies according to variety, most cultivars often flower and set fruit the first year in the orchard and thereafter bear fruit each year.
Compatibility: Graft compatible with all major commerical fruiting varieties.
Root Anchorage: Needs support.
Hardiness: Hardy in most commercial apple growing areas.
Disease and pest resistance: Average resistance to common diseases and pests of apple. Tested and found free of all known virus diseases to apple.
Claims (1)
1. A new and distinct apple tree clone, a sport of the Malling 9, referred to by the cultivar designation `M9-RN8`, substantially as herein shown and described, characterized particularly by its ability to serve as a rootstock for grafting of apple tree cultivars to produce dwarf apple trees and by its ability to rot very readily in the stoolbed with very little lateral branching and produce high quality stoolbed rootstock plants for nursery use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/995,334 USPP10745P (en) | 1991-01-18 | 1992-12-22 | Apple tree named `M9-RN8` |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US64291191A | 1991-01-18 | 1991-01-18 | |
| US07/995,334 USPP10745P (en) | 1991-01-18 | 1992-12-22 | Apple tree named `M9-RN8` |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| USPP10745P true USPP10745P (en) | 1999-01-05 |
Family
ID=24578552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US07/995,334 Expired - Lifetime USPP10745P (en) | 1991-01-18 | 1992-12-22 | Apple tree named `M9-RN8` |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | USPP10745P (en) |
-
1992
- 1992-12-22 US US07/995,334 patent/USPP10745P/en not_active Expired - Lifetime
Non-Patent Citations (12)
| Title |
|---|
| Anon. Oregon Rootstock, Inc. Catalog 1985, Oregon Rootstock, Inc., Woodburn, Oregon. pp. 8 15. * |
| Anon. Oregon Rootstock, Inc. Catalog 1985, Oregon Rootstock, Inc., Woodburn, Oregon. pp. 8-15. |
| Anon. Stark Bro s Fruit Tree Catalog & Guide for the Professional Grower 1989 Stark Bro s Nursery and Orchards Co., Louisana, Mo. pp. 18 and 19. * |
| Anon. Stark Bro's Fruit Tree Catalog & Guide for the Professional Grower 1989 Stark Bro's Nursery and Orchards Co., Louisana, Mo. pp. 18 and 19. |
| Masseron, A., "Study and Selection of Paradise Jaune De Metz (English Translation) Rootstock of the Apple Tree" Interprofessional Technical Center for the Fruits and Vegatables, CTIFL, Service for Improving Production, Domaine de Laxade, Prigonrieux 24130 La Force, pp. 35-57 (With Pages Missing in Between). |
| Masseron, A., Study and Selection of Paradise Jaune De Metz (English Translation) Rootstock of the Apple Tree Interprofessional Technical Center for the Fruits and Vegatables, CTIFL, Service for Improving Production, Domaine de Laxade, Prigonrieux 24130 La Force, pp. 35 57 (With Pages Missing in Between). * |
| Tukey, H.B., "Dwarfing Rootstocks for Apple" Dwarfed Fruit Trees The Macmillian Co., N.Y. 1964 pp. 123-154. |
| Tukey, H.B., Dwarfing Rootstocks for Apple Dwarfed Fruit Trees The Macmillian Co., N.Y. 1964 pp. 123 154. * |
| von Oosten, H.J., et al., "Differences Between Subvarieties of `M.9`" De Fruitteelt (English Translation) (all 1984) No. 32, pp. 924-926; No. 33, pp. 950-951; No. 34, pp. 968-969; and, No 35, pp. 988-989. |
| von Oosten, H.J., et al., Differences Between Subvarieties of M.9 De Fruitteelt (English Translation) (all 1984) No. 32, pp. 924 926; No. 33, pp. 950 951; No. 34, pp. 968 969; and, No 35, pp. 988 989. * |
| Ziebig, R., et al., "Autonomous Province Bozen--South Tyrol, Division VI, Agriculture and Forestry. 1992 Activity Program for the Agriculture and Forestry Experimental Center" Autonomous Province Bozen--South Tyrol, Division IV, Agriculture and Forestry. (English Translation of Document Provided by Applicant). |
| Ziebig, R., et al., Autonomous Province Bozen South Tyrol, Division VI, Agriculture and Forestry. 1992 Activity Program for the Agriculture and Forestry Experimental Center Autonomous Province Bozen South Tyrol, Division IV, Agriculture and Forestry. (English Translation of Document Provided by Applicant). * |
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