US4378655A
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Semi-dwarf hybrid sunflower seed and plant and method of producing hybrid seed
Assignee: SNC SA CLAEYS-LUCK ET ETS CLAUDE-CAMILLE BENOIST A CORP OF FRANCE
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Filing: 1981-08-24
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Granted: 1983-04-05
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Expires: 2001-08-24
Abstract
Abstract This invention relates to a novel semi-dwarf hybrid sunflower (Helianthus annuus var. macrocarpus (DC.) Ckll. (herein H. annuus) seed and a method of producing the hybrid seed. The hybrid sunflower seed upon growth yields a semi-dwarf sunflower plant having a reduced internode length. The hybrid seed is produced by cross pollinating a pair of parent plants P 1 and P 2 wherein, in at least one parent substantially all pollen is nonfunctional and at least one parent has gametes with nuclei carrying at least one dominant gene for reduced internode length.
Inventors
- 👤 Freeman K. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:51
CPC Classifications
A; A01; A01H; A01H1/00; A01H1/12; A01H1/121; Y; Y10; Y10S; Y10S47/00; Y10S47/01
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
90 words
A method of producing semi-dwarf hybrid sunflower seeds which will produce sunflowers with reduced internode length under normal growing conditions, which comprises: (a) growing a pair of parent plants (P 1 and P 2 ) wherein in at least one parent substantially all pollen is nonfunctional and at least one parent has gametes with nuclei which carry at least one dominant gene for reduced internode length (Df); (b) cross pollinating the plants (P 1 +P 2 ) to produce hybrid seeds F 1 ; and (c) harvesting the hybrid seeds.
Claim 2
Independent Claim
90 words
A method of producing semi-dwarf hybrid sunflower seeds which will produce sunflowers with reduced internode length under normal growing conditions, which comprises: (a) growing a pair of parent plants (P 1 and P 2 ) wherein in at least one parent substantially all pollen is nonfunctional and at least one parent has gametes with nuclei which carry at least one dominant gene for reduced internode length (Df); (b) cross pollinating the plants (P 1 +P 2 ) to produce hybrid seeds F 1 ; and (c) harvesting the hybrid seeds.
Claim 3
Dependent Claim
44 words
A method as described in claim 1 wherein substantially all pollen in the female seed plant (P 1 ) is made nonfunctional by the use of plant breeding techniques selected from the group consisting of chemical gametocides, genetic sterility, partial pollen abortion and self-incompatibility.
Claim 4
Independent Claim
102 words
A method of producing semi-dwarf hybrid sunflower seeds which will produce sunflowers with reduced internode length under normal growing conditions, which comprises: (a) growing a female seed parent plant (P 1 ) in which substantially all pollen is nonfunctional, having gametes with nuclei which carry a gene for standard internode length (df); (b) growing a male pollen bearing parent plant (P 2 ) having gametes with nuclei which carry at least one dominant gene for reduced internode length (Df); cross pollinating the plants (P 1 and P 2 ) to produce hybrid seeds F 1 ; and (d) harvesting the hybrid seeds.
Claim 5
Independent Claim
102 words
A method of producing semi-dwarf hybrid sunflower seeds which will produce sunflowers with reduced internode length under normal growing conditions, which comprises: (a) growing a female seed parent plant (P 1 ) in which substantially all pollen is nonfunctional, having gametes with nuclei which carry a gene for standard internode length (df); (b) growing a male pollen bearing parent plant (P 2 ) having gametes with nuclei which carry at least one dominant gene for reduced internode length (Df); cross pollinating the plants (P 1 and P 2 ) to produce hybrid seeds F 1 ; and (d) harvesting the hybrid seeds.
Claim 6
Dependent Claim
57 words
A method as described in claim 3 wherein P 1 is a cytoplasmic sterile plant which is not fertility restoring having gametes with nuclei which carry a gene for standard internode length (df) and P 2 has gametes with nuclei carrying a fertility restoring gene (Rf) and at least one dominant gene for reduced internode length (Df).
Claim 7
Independent Claim
103 words
A method of producing semi-dwarf hybrid sunflower seeds which will produce sunflower with reduced internode length under normal growing conditions, which comprises: (a) growing a female seed parent plant (P 1 ) in which substantially all pollen is nonfunctional, having gametes with nuclei which carry as least one dominant gene for reduced internode length (Df); (b) growing a male pollen bearing parent plant (P 2 ) having gametes with nuclei which carry a gene for standard internode length (df); (c) cross pollinating the plants (P 1 and P 2 ) to produce hybrid seeds F 1 ; and (d) harvesting the hybrid seeds.
Claim 8
Independent Claim
103 words
A method of producing semi-dwarf hybrid sunflower seeds which will produce sunflower with reduced internode length under normal growing conditions, which comprises: (a) growing a female seed parent plant (P 1 ) in which substantially all pollen is nonfunctional, having gametes with nuclei which carry as least one dominant gene for reduced internode length (Df); (b) growing a male pollen bearing parent plant (P 2 ) having gametes with nuclei which carry a gene for standard internode length (df); (c) cross pollinating the plants (P 1 and P 2 ) to produce hybrid seeds F 1 ; and (d) harvesting the hybrid seeds.
Claim 9
Dependent Claim
57 words
A method as described in claim 5 wherein P 1 is a cytoplasmic sterile plant which is not fertility restoring having gametes with nuclei which carry at least one dominant gene for reduced internode length (Df) and P 2 has gametes with nuclei carrying a fertility restoring gene (Rf) and a gene for standard internode length (df).
Claim 10
Independent Claim
106 words
A method of producing semi-dwarf hybrid sunflower seeds which will produce sunflower with reduced internode length under normal growing conditions, which comprises: (a) growing a female seed parent plant (P 1 ) in which substantially all pollen is nonfunctional, having gametes with nuclei which carry at least one dominant gene for reduced internode length (Df); (b) growing a male pollen bearing parent plant (P 2 ) having gametes with nuclei which carry at least one dominant gene for reduced internode length (Df); (c) cross pollinating the plants (P 1 and P 2 ) to produce hybrid seeds F 1 ; and (d) harvesting the hybrid seeds.
Claim 11
Independent Claim
106 words
A method of producing semi-dwarf hybrid sunflower seeds which will produce sunflower with reduced internode length under normal growing conditions, which comprises: (a) growing a female seed parent plant (P 1 ) in which substantially all pollen is nonfunctional, having gametes with nuclei which carry at least one dominant gene for reduced internode length (Df); (b) growing a male pollen bearing parent plant (P 2 ) having gametes with nuclei which carry at least one dominant gene for reduced internode length (Df); (c) cross pollinating the plants (P 1 and P 2 ) to produce hybrid seeds F 1 ; and (d) harvesting the hybrid seeds.
Claim 12
Dependent Claim
60 words
A method as described in claim 7 wherein P 1 is a cytoplasmic sterile plant which is not fertility restoring having gametes with nuclei which carry at least one dominant gene for reduced internode length (Df) and P 2 has gametes with nuclei carrying a fertility restoring gene (Rf) and at least one dominant gene for reduced internode length (Df).
Claim 13
Independent Claim
53 words
A method of producing semi-dwarf inbred sunflower seeds which will produce sunflowers with reduced internode length under normal growth conditions, which comprises: (a) growing a plant having gametes with nuclei which carry at least one dominant gene for reduced internode length (Df); (b) sib pollinating the plant; and (c) harvesting the hybrid seed.
Claim 14
Independent Claim
53 words
A method of producing semi-dwarf inbred sunflower seeds which will produce sunflowers with reduced internode length under normal growth conditions, which comprises: (a) growing a plant having gametes with nuclei which carry at least one dominant gene for reduced internode length (Df); (b) sib pollinating the plant; and (c) harvesting the hybrid seed.
Claim 15
Dependent Claim
69 words
A semi-dwarf hybrid sunflower seed which upon growth yields a sunflower plant having a reduced internode length, the hybrid seed having been produced by cross pollinating a pair of parent plants (P 1 and P 2 ), wherein in at least one parent substantially all pollen is nonfunctional and at least one parent has gametes with nuclei which carry at least one dominant gene for reduced internode length (Df).
Claim 16
Dependent Claim
69 words
A semi-dwarf hybrid sunflower seed which upon growth yields a sunflower plant having a reduced internode length, the hybrid seed having been produced by cross pollinating a pair of parent plants (P 1 and P 2 ), wherein in at least one parent substantially all pollen is nonfunctional and at least one parent has gametes with nuclei which carry at least one dominant gene for reduced internode length (Df).
Claim 17
Dependent Claim
47 words
A semi-dwarf hybrid sunflower seed as described in claim 10 wherein substantially all pollen in the female seed plant (P 1 ) is made nonfunctional by the use of plant breeding techniques selected from the group consisting of chemical gametocides, genetic sterility, partial pollen abortion and self-incompatibility.
Claim 18
Dependent Claim
28 words
A semi-dwarf sunflower seed as described in claim 10 wherein the internode length is reduced by about 10% to 35% as compared to hybrids having standard internode length.
Claim 19
Dependent Claim
21 words
A semi-dwarf hybrid sunflower seed as described in claim 10 wherein the internode length of the plant is about 75 mm.
Claim 20
Dependent Claim
82 words
A semi-dwarf hybrid sunflower seed which upon growth yields a sunflower plant having a reduced internode length, the hybrid seed having been produced by cross pollinating two sunflower plants, wherein the female seed parent plant (P 1 ) produces pollen which is substantially all nonfunctional, and P 1 has gametes with nuclei which carry a gene for standard internode length (df); and the other parent plant P 2 having gametes with nuclei carrying at least one dominant gene for reduced internode length.
Claim 21
Dependent Claim
82 words
A semi-dwarf hybrid sunflower seed which upon growth yields a sunflower plant having a reduced internode length, the hybrid seed having been produced by cross pollinating two sunflower plants, wherein the female seed parent plant (P 1 ) produces pollen which is substantially all nonfunctional, and P 1 has gametes with nuclei which carry a gene for standard internode length (df); and the other parent plant P 2 having gametes with nuclei carrying at least one dominant gene for reduced internode length.
Claim 22
Dependent Claim
60 words
A semi-dwarf hybrid sunflower seed as described in claim 11 wherein P 1 is a cytoplasmic sterile plant which is not fertility restoring having gametes with nuclei which carry a gene for standard internode length (df) and P 2 has gametes with nuclei carrying a fertility restoring gene (Rf) and at least one dominant gene for reduced internode length (Df).
Claim 23
Dependent Claim
81 words
A semi-dwarf hybrid sunflower seed which upon growth yields a sunflower plant having a reduced internode length, the hybrid seed having been produced by cross pollinating two sunflower plants, wherein the female seed parent plant (P 1 ) produces pollen which is substantially all nonfunctional, and P 1 has gametes with nuclei which carry a dominant gene for reduced internode length (Df); and the other parent plant P 2 having has gametes with nuclei carrying a gene for standard internode length.
Claim 24
Dependent Claim
81 words
A semi-dwarf hybrid sunflower seed which upon growth yields a sunflower plant having a reduced internode length, the hybrid seed having been produced by cross pollinating two sunflower plants, wherein the female seed parent plant (P 1 ) produces pollen which is substantially all nonfunctional, and P 1 has gametes with nuclei which carry a dominant gene for reduced internode length (Df); and the other parent plant P 2 having has gametes with nuclei carrying a gene for standard internode length.
Claim 25
Dependent Claim
60 words
A semi-dwarf hybrid sunflower seed as described in claim 12 wherein P 1 is a cytoplasmic sterile plant which is not fertility restoring having gametes with nuclei which carry at least one dominant gene for reduced internode length (Df) and P 2 has gametes with nuclei carrying a fertility restoring gene (Rf) and a gene for standard internode length (df).
Claim 26
Dependent Claim
87 words
A semi-dwarf hybrid sunflower seed which upon growth yields a sunflower plant having a reduced internode length, the hybrid seed having been produced by cross pollinating two sunflower plants, wherein the female seed parent plant (P 1 ) produces pollen which is substantially all nonfunctional, and P 1 has gametes with nuclei which carry at least one dominant gene for reduced internode length (Df); and the other parent plant P 2 having has gametes with nuclei carrying at least one dominant gene for reduced internode length (Df).
Claim 27
Dependent Claim
87 words
A semi-dwarf hybrid sunflower seed which upon growth yields a sunflower plant having a reduced internode length, the hybrid seed having been produced by cross pollinating two sunflower plants, wherein the female seed parent plant (P 1 ) produces pollen which is substantially all nonfunctional, and P 1 has gametes with nuclei which carry at least one dominant gene for reduced internode length (Df); and the other parent plant P 2 having has gametes with nuclei carrying at least one dominant gene for reduced internode length (Df).
Claim 28
Dependent Claim
63 words
A semi-dwarf hybrid sunflower seed as described in claim 18 wherein P 1 is a cytoplasmic sterile plant which is not fertility restoring having gametes with nuclei which carry at least one dominant gene for reduced internode length (Df) and P 2 has gametes with nuclei carrying a fertility restoring gene (Rf) and at least one dominant gene for reduced internode length (Df).
Claim 29
Dependent Claim
69 words
A first generation semi-dwarf hybrid sunflower plant of reduced internode length, the hybrid sunflower plant having been grown from the seed from the cross pollination of a pair of parent plants (P 1 and P 2 ) wherein in at least one parent substantially all pollen is nonfunctional and at least one parent has gametes with nuclei which carry at least one dominant gene for reduced internode length (Df).
Claim 30
Dependent Claim
69 words
A first generation semi-dwarf hybrid sunflower plant of reduced internode length, the hybrid sunflower plant having been grown from the seed from the cross pollination of a pair of parent plants (P 1 and P 2 ) wherein in at least one parent substantially all pollen is nonfunctional and at least one parent has gametes with nuclei which carry at least one dominant gene for reduced internode length (Df).
Claim 31
Dependent Claim
28 words
A semi-dwarf sunflower plant as described in claim 20 wherein the internode length is reduced by about 10% to 35% as compared to hybrids having standard internode length.
Claim 32
Dependent Claim
18 words
A semi-dwarf hybrid sunflower plant as described in claim 20 wherein the internode length is about 75 mm.
Claim 33
Independent Claim
27 words
A method of producing seeds of a semi-dwarf sunflower variety which will produce sunflower with reduced internode length in successive generations under normal growing conditions, which comprises:
Claim 34
Independent Claim
27 words
A method of producing seeds of a semi-dwarf sunflower variety which will produce sunflower with reduced internode length in successive generations under normal growing conditions, which comprises:
Claim 35
Dependent Claim
40 words
(a) growing at least two inbred lines each having gametes with nuclei carrying at least one dominant gene for reduced internode length; (b) interpollinating the inbred lines from step (a) for at least two generations; and (c) harvesting the seeds.
Claim 36
Dependent Claim
40 words
(a) growing at least two inbred lines each having gametes with nuclei carrying at least one dominant gene for reduced internode length; (b) interpollinating the inbred lines from step (a) for at least two generations; and (c) harvesting the seeds.
Claim 37
Independent Claim
67 words
A method of producing seeds of a semi-dwarf sunflower variety which will produce sunflower with reduced internode length in successive generations under normal growing conditions, which comprises: (a) growing at least two hybrid lines each having gametes with nuclei carrying at least one dominant gene for reduced internode length; (b) interpollinating the hybrid lines from step (a) for at least two generations; and (c) harvesting the seeds.
Claim 38
Independent Claim
67 words
A method of producing seeds of a semi-dwarf sunflower variety which will produce sunflower with reduced internode length in successive generations under normal growing conditions, which comprises: (a) growing at least two hybrid lines each having gametes with nuclei carrying at least one dominant gene for reduced internode length; (b) interpollinating the hybrid lines from step (a) for at least two generations; and (c) harvesting the seeds.
References Cited (Backward Citations)
US4143486A
Cited
US4254580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-04-04 | 1986-10-04 | 1987-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-04 | 1990-10-04 | 1991-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-04 | 1994-10-04 | 1995-04-05 | $7700.00 | Window Closed / Lapsed |