USPP10714P - Apple tree named `M9-RN29` - Google Patents
Apple tree named `M9-RN29` Download PDFInfo
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- USPP10714P USPP10714P US07/991,456 US99145692V US10714P US PP10714 P USPP10714 P US PP10714P US 99145692 V US99145692 V US 99145692V US 10714 P US10714 P US 10714P
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- 235000011430 Malus pumila Nutrition 0.000 title claims abstract description 15
- 235000015103 Malus silvestris Nutrition 0.000 title claims abstract description 15
- 244000141359 Malus pumila Species 0.000 title claims abstract description 7
- 241000196324 Embryophyta Species 0.000 claims abstract description 34
- 241001480175 Angophora hispida Species 0.000 claims 1
- 241000220225 Malus Species 0.000 abstract description 8
- 230000000644 propagated effect Effects 0.000 abstract description 4
- 230000035772 mutation Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 10
- 230000012010 growth Effects 0.000 description 7
- 210000003746 feather Anatomy 0.000 description 5
- 241000700605 Viruses Species 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 3
- 241000607479 Yersinia pestis Species 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002420 orchard Substances 0.000 description 2
- 230000002786 root growth Effects 0.000 description 2
- 231100000241 scar Toxicity 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 102000011842 Serrate-Jagged Proteins Human genes 0.000 description 1
- 108010036039 Serrate-Jagged Proteins Proteins 0.000 description 1
- 230000001154 acute effect Effects 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
- 210000004209 hair Anatomy 0.000 description 1
- 238000010438 heat treatment 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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- 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
- Rene Nicolai The inventor of the subject plant, Rene Nicolai, was the owner of Rene Nicolai Nursery, which propagated and sold Malling Nine (M9) apple tree rootstock. Rootstock are propagated by placing plants in a stoolbed which encourages root growth and then dividing the resulting roots into individual plants. Over the years Mr. Nicolai searched the M9 stoolbeds for M9 mutants which were superior to the parent variety in those characteristics which are desirable for apple tree rootstock.
- the subject clone was selected in 1967 from a large stoolbed of M9 plants that was planted in 1960 at the Rene Nicolai Nursery at Linderstroot, 22-B-3820 Alken, Belgium. The original source of the plants in the bed was the East Malling Research Station in England. Following its selection, the clone was assigned a number (RN29) and was propagated for further testing and evaluation.
- RN29 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 RN29 progeny plants were expanded into small stoolbed plantings at several locations which were planted separately in order to examine the new variety's individual characteristics in small semicommercial stoolbed sites. Since 1974 nearly 40,000 plants of the subject variety have been planted at the following six sites and, in the process, many generations of the tree have been produced:
- Clone RN29 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 many more lateral limbs (feathers) than its M9 parent and grows more robustly in the stoolbed (FIGS. 2 and 3, Charts 1 and 2). Average increases in height of the plants in the stoolbed for the RN29 is almost 30% more than for the M9 (FIG. 6, M9; FIG. 7, RN29) and the average increase in the numbers of feathers produced is more than three-fold. There also occurs a great difference in the average length of the individual feathers produced (Chart 2). Because of the more robust growth and increased number of limbs produced by the RN29, a two-fold difference also occurs in the number of leaves produced per stoolbed plant (Chart 2).
- the subject clone has the ability to produce many more rooted daughter plants per mother plant (FIG. 1) and per meter of stoolbed row than its M9 parent (Charts 4, 5 and 6).
- Data collected at the Deveaux, Belgium test site shows a two-fold increase in rooting ability and in the number of rooted plants harvested (Charts 1 and 2) and at a test site at Bordeaux, France a three-and-one-half-fold increase is demonstrated after five years in the stoolbed (Chart 6).
- Leaf color of the subject clone is a pale yellow-green as compared to M9's darker green color (FIG. 5)
- RN29 is also characterized with leaves which exhibit smaller and sharper serrations than does its M9 parent (FIG. 4).
- FIG. 1 shows typical root growth following one season in the stoolbed.
- FIG. 2 shows numerous lateral branches and pale yellow-green color of leaves on new shoots.
- FIG. 3 shows numerous lateral branches (feathers).
- FIG. 4 shows the fine leaf serrations.
- FIG. 5 shows the pink top growth of new shoots with the pale yellow-green color of older leaves.
- FIG. 6 shows the average height in centimeters of M9 rootstock daughter plants in a stoolbed row in Ephrata, Wash.
- FIG. 7 shows the average height in centimeters of RN29 rootstock daughter plants in a stoolbed row in Ephrata, Wash.
- Rooting and stooling Multiplies well in stoolbeds, forming strong roots along full length of shank. Roots arise from nodes.
- Size control potential Size of trees budded on the subject rootstocks will vary according to the vigor of the cultivar, condition and type of soil and orchard management. "Standard" growing cultivars such as Red and Golden Delicious are reduced in size about 65% when compared to trees on 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 commercial 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 and virus-like 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 65% of the size of like apple trees growing on seedling rootstocks. Compared to its M9 parent, this new clone produces many more and larger lateral branches, has more sharply serrated leaves which are more pale yellow-green in color. The clone is also more vigorous and produces a large number of rooted plants in a given area of stoolbed.
Description
This is a continuation of application Ser. No. 07/642,992 filed on Jan. 18, 1991 (now Abandoned).
BACKGROUND AND SUMMARY OF THE INVENTION
The inventor of the subject plant, Rene Nicolai, was the owner of Rene Nicolai Nursery, which propagated and sold Malling Nine (M9) apple tree rootstock. Rootstock are propagated by placing plants in a stoolbed which encourages root growth and then dividing the resulting roots into individual plants. Over the years Mr. Nicolai searched the M9 stoolbeds for M9 mutants which were superior to the parent variety in those characteristics which are desirable for apple tree rootstock.
The subject clone was selected in 1967 from a large stoolbed of M9 plants that was planted in 1960 at the Rene Nicolai Nursery at Linderstroot, 22-B-3820 Alken, Belgium. The original source of the plants in the bed was the East Malling Research Station in England. Following its selection, the clone was assigned a number (RN29) and was propagated for further testing and evaluation.
Since all original M9 rootstocks have been found to be virus infected, RN29 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 RN29 progeny plants were expanded into small stoolbed plantings at several locations which were planted separately in order to examine the new variety's individual characteristics in small semicommercial stoolbed sites. Since 1974 nearly 40,000 plants of the subject variety have been planted at the following six sites and, in the process, many generations of the tree have been produced:
1. A site at Deveaux, Belgium was planted in the spring of 1974 with 1,875 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 7,644 plants of the subject clone.
4. A site near St. Truiden, Belgium was planted in the spring of 1982 with 100 plants of the subject clone.
5. A site at Henkaenrts, Belgium was planted in the spring of 1986 with 3,250 plants of the subject clone.
6. A site at Ephrata, Washington was planted in the spring of 1990 with 26,000 plants of the subject clone.
Clone RN29 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 many more lateral limbs (feathers) than its M9 parent and grows more robustly in the stoolbed (FIGS. 2 and 3, Charts 1 and 2). Average increases in height of the plants in the stoolbed for the RN29 is almost 30% more than for the M9 (FIG. 6, M9; FIG. 7, RN29) and the average increase in the numbers of feathers produced is more than three-fold. There also occurs a great difference in the average length of the individual feathers produced (Chart 2). Because of the more robust growth and increased number of limbs produced by the RN29, a two-fold difference also occurs in the number of leaves produced per stoolbed plant (Chart 2). The number of nodes/shoot and the aver- age individual stem circumference were also greater for RN29 due to its more robust growth habit. Leaf size (adding the length and width together) and the length of the petioles were consistently smaller than the virus-free M9 (Chart 3).
CHART 1
______________________________________
Percent of Layer Plants with Side Limbs (Feathers)
(Test Stooling Beds at Bordeaux, France)
Year
Rootstock Clone
79/80 80/81 81/82 82/83
Average
______________________________________
M9 (virus-free)
13 8 25 0 11.5
RN8 8 6 13 0 6.8
RN19 41 32 44 19 34.0
RN29 39 22 35 15 27.8
______________________________________
CHART 2
______________________________________
Growth Characteristics
(Test Stooling Beds at Ephrata, Washington)
Length Number Number Length
Number
Root-
of of of of of Circumference
stock
Shoot Nodes/ Spura/ Spur Leaves/
of Stem
Clone
(cm) Shoot Shoot (cm) Shoots
(cm)
______________________________________
H9 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.
CHART 3
______________________________________
Leaf Size and Respective 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
______________________________________
2. The subject clone has the ability to produce many more rooted daughter plants per mother plant (FIG. 1) and per meter of stoolbed row than its M9 parent (Charts 4, 5 and 6). Data collected at the Deveaux, Belgium test site shows a two-fold increase in rooting ability and in the number of rooted plants harvested (Charts 1 and 2) and at a test site at Bordeaux, France a three-and-one-half-fold increase is demonstrated after five years in the stoolbed (Chart 6).
CHART 4
______________________________________
RN29 Stoolbed Production (Deveaux, Belgium)
______________________________________
No. Mother Plants - 1,875
Length of Bed (m) - 6,215
Year
Grade (mm)
82/83 83/84 84/85 85/86 86/87
______________________________________
10/12 1,700 900 1,450 3,050 2,500
8/10 0 0 2,100 0 0
6/10 20,600 16,400 0 0 13,850
6/8 0 0 13,040 13,500 0
5/7 0 0 0 0 0
4/6 11,400 11,200 17,200 11,400 20,100
04 0 3,100 0 4,900 1,050
#2s 4,500 3,900 4,000 4,400 7,900
Totals 38,200 35,500 37,790 37,250 45,400
Per Mother
20.37 18.93 20.15 19.87 24.21
Plant
Per Meter
61.12 56.80 60.46 59.60 72.64
______________________________________
Year
Grade (mm)
87/88 88/89 89/90 90/91
______________________________________
10/12 2,100 0 1,200 1,650
8/10 5,150 7,050 6,050 0
6/10 0 0 0 20,900
6/8 14,200 15,200 13,800 0
5/7 0 0 0 0
4/6 1,400 14,500 15,900 14,100
04 0 0 0 0
#2s 7,500 4,300 10,800 4,700
Average
Totals 30,350 41,050 47,750 41,350 82/91
Per Mother
16.19 21.89 25.47 22.05 21.02
Plant
Per Meter
48.56 65.68 76.40 66.16 63.05
______________________________________
CHART 5
______________________________________
M9(Virus-Free) Stoolbed Production (Deveaux, Belgium)
______________________________________
No. Mother Plants - 561
Length of Bed (m) - 187
Year
Grade (mm)
82/83 83/84 84/85 85/86 86/87
______________________________________
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
12.25 10.25 12.12 9.27 12.59
Plant
Per Meter
36.76 30.75 36.36 27.81 37.78
______________________________________
Year
Grade (mm)
87/88 88/89 89/90 90/91
______________________________________
10/12 75 -- -- --
8/10 450 -- -- --
6/10 0 -- -- --
6/8 2,700 -- -- --
5/7 0 -- -- --
4/6 2,200 -- -- --
04 0 -- -- --
#2s 400 -- -- --
Average
Totals 5,825 -- -- -- 82/91
Per Mother
10.38 -- -- -- 11.14
Plant
Per Meter
31.15 -- -- -- 33.43
______________________________________
CHART 6
______________________________________
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 (virus-free)
1.2 2.6 .5 4.0 8.3
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
______________________________________
3. Small differences in leaf color and structure have also been noticed. Leaf color of the subject clone is a pale yellow-green as compared to M9's darker green color (FIG. 5) RN29 is also characterized with leaves which exhibit smaller and sharper serrations than does its M9 parent (FIG. 4).
4. The lack of blooming characteristics of RN29 is very pronounced and in this respect differs distinctly from its M9 parent. The lack of any bloom produced on RN29 two-year-old line-out stocks was contrasted with the amount exhibited by the M9 parent (chart 7).
CHART 7
______________________________________
Bloom Characteristics
(Research Station at Gorsum, Belgium - 1985)
% of Rootstocks With Bloom
Rootstock Clone
(1 Year From Stoolbed)
______________________________________
RN8 29
RN19 4
RN29 0
M9 (virus-free)
15
______________________________________
FIG. 1 shows typical root growth following one season in the stoolbed.
FIG. 2 shows numerous lateral branches and pale yellow-green color of leaves on new shoots.
FIG. 3 shows numerous lateral branches (feathers).
FIG. 4 shows the fine leaf serrations.
FIG. 5 shows the pink top growth of new shoots with the pale yellow-green color of older leaves.
FIG. 6 shows the average height in centimeters of M9 rootstock daughter plants in a stoolbed row in Ephrata, Wash.
FIG. 7 shows the average height in centimeters of RN29 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.--Many, flexible, willowy.
Vegetative Shoots:
Bark color.--Greenish-brown (22-14).
Pubescence.--Finely tomentose.
Lenticels.--Few, inconspicuous, widely spaced, small, yellow-white.
Leaves:
Size.--Average, 5.7 cm wide, 8.6 cm long.
Shape.--Broad elliptic, somewhat asymmetric, wavy.
Base.--Obtuse, attenuated.
Apex.--Mucronate.
Serrations.--Finely serrate at sides, more obtuse margins at base.
Spacing.--Normal phyllotaxical arrangement for Malus.
Color.--Pale yellow-green (22-11) with pinkish tips.
Leaf scars:
Shape.--Broad V, slightly raised.
Color.--Dark brown.
Petioles:
Shape.--Slender, slightly channeled.
Length.--Medium, 2.85 cm.
Color.--Reddish-brown (32-12).
Pose.--Slight acute angle near tip, mostly horizontal.
Glands.--None.
Stipules:
Size.--Small, 3-5 mm, inconspicuous, some minutely serrated.
Color.--Yellow-green.
Pose.--Mostly reposed along petiole.
Lateral buds:
Size.--Small.
Shape.--Flat, angular.
Color.--Dark brown.
Pubescence.--Fine hairs, tomentose.
Apical buds:
Size.--Larger than lateral buds.
Shape.--Obtuse.
Color.--Dark brown.
Pubescence.--Tomentose.
Shoots:
Size.--Stocky, 7.8-12.0 mm in caliper at base, stiff, brittle.
Bark color.--Dark brown (25-15).
Pubescence.--Conspicuously pubescent.
Nodes.--Larger in diameter than internodes with 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.
Flowers:
Size.--3.5 cm in diameter.
Color.--White with pinkish streaks toward base.
Fruit (No commercial value but useful for identification):
Shape.--Round to slightly oblong. Color.--Red stripes. Size.--4.5 cm in diameter, 5.5 cm in length. Flavor.--Bland, tasteless.
Rootsuckering: Slight.
Size control potential: Size of trees budded on the subject rootstocks will vary according to the vigor of the cultivar, condition and type of soil and orchard management. "Standard" growing cultivars such as Red and Golden Delicious are reduced in size about 65% when compared to trees on 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 commercial 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 and virus-like 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-RN29`, substantially as herein shown and described, characterized particularly by its ability to serve as a root-stock for grafting of apple tree cultivars to produce dwarf apple trees and by its ability to root very readily in the stoolbed and produce high quality stoolbed rootstock plants for nursery use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/991,456 USPP10714P (en) | 1991-01-18 | 1992-12-15 | Apple tree named `M9-RN29` |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US64299291A | 1991-01-18 | 1991-01-18 | |
| US07/991,456 USPP10714P (en) | 1991-01-18 | 1992-12-15 | Apple tree named `M9-RN29` |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| USPP10714P true USPP10714P (en) | 1998-12-08 |
Family
ID=24578916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US07/991,456 Expired - Lifetime USPP10714P (en) | 1991-01-18 | 1992-12-15 | Apple tree named `M9-RN29` |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | USPP10714P (en) |
-
1992
- 1992-12-15 US US07/991,456 patent/USPP10714P/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 Free Catalog. & Guide for the Professional Groiver 1989, Stark Bros Nursery and Orchards Co., Louisana, MO. pp. 18 and 19. * |
| Anon. Stark Bro's Fruit Free Catalog. & Guide for the Professional Groiver 1989, Stark Bros Nursery and Orchards Co., Louisana, MO. pp. 18 and 19. |
| Fukey, H.B., "7 Dwarfing Rootstocks for Apple" Dwarfed Fruit Trees The Macmillan Co., New York 1964 pp. 123-154. |
| Fukey, H.B., 7 Dwarfing Rootstocks for Apple Dwarfed Fruit Trees The Macmillan Co., New York 1964 pp. 123 154. * |
| Gilles, G.L., et al. Clonal Selection of M9Apple Rootstock and Influence of Viruses on Homological Value (Citation; information not provided by applicant in parent application.). * |
| Masseron, A. "Etude et selection du Paradis Jaune de Metz, porte-greffe du pommier" (Citation information not provided with copies in parent application). |
| Masseron, A. Etude et s e lection du Paradis Jaune de Metz, porte greffe du pommier (Citation information not provided with copies in parent application). * |
| R. Ziebig, et al. 1992 Activity Program for the Agriculture and Forestry Experimental Center Division VI Agriculture and Forestry, Autonomous Province, Bozen, South Tyrol., 3 pages. * |
| van Oosten, H.J., et al., "Verschillen tussen herkomstin van M9" De. Fruittielt n. 32, 1984, pp. 924-926, 950-951, 968-969 and 988-989. |
| van Oosten, H.J., et al., Verschillen tussen herkomstin van M9 De. Fruittielt n. 32, 1984, pp. 924 926, 950 951, 968 969 and 988 989. * |
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