Patent US5900528A successfully refreshed from Google Patents.
US5900528A
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Synthetic corn hybrid P55
Assignee: Optimum Quality Grains LLC
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Filing: 1997-11-24
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Granted: 1999-05-04
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Expires: 2017-11-24
Abstract
Abstract A synthetic hybrid corn plant having the designation P55, produced by crossing two proprietary DuPont TopCross International maize synthetics, LP41.1B-Lancaster and LP44.1A-Reid. P55 has the unique property of imparting high oil and high protein levels in the grain of certain normal and male sterile hybrids when used as a pollinator. P55 is characterized by excellent cold tolerant seedling vigor for rapid emergence in cold soils and excellent early-season adaptability to nick with early maize hybrids that condition fast dry-down and superior grain quality in the recipient female grain parent. This invention thus relates to the seeds, plants and plant parts of P55, to plants regenerated from tissue culture of the plants of P55, to a method of producing P55, and to a method for producing high oil grain using P55 as a pollinator.
Inventors
- 👤 Richard R. Bergquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
A; A01; A01H; A01H5/00; A01H5/10; A01H6/00; A01H6/46; A01H6/4684
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
13 words
A synthetic hybrid corn seed designated P55 and having ATCC accession no. 209429.
Claim 2
Dependent Claim
13 words
A synthetic hybrid corn seed designated P55 and having ATCC accession no. 209429.
Claim 3
Dependent Claim
12 words
A synthetic hybrid corn plant produced by the seed of claim 1.
Claim 4
Dependent Claim
10 words
Pollen of the synthetic hybrid corn plant of claim 2.
Claim 5
Dependent Claim
15 words
A tissue culture comprising regenerable cells of the synthetic hybrid corn plant of claim 2.
Claim 6
Dependent Claim
31 words
A corn plant regenerated from regenerable cells of the tissue culture of claim 4, wherein said plant has all the physiological and morphological characteristics of P55, having ATCC accession No. 209429.
Claim 7
Dependent Claim
28 words
A synthetic hybrid corn plant having all the phenotypic, genotypic and physiological characteristics of the synthetic hybrid corn plant P55, having ATCC accession No. 209429, of claim 2.
Claim 8
Independent Claim
92 words
A method for producing a synthetic hybrid corn seed designated P55, having ATCC accession No. 209429, comprising the steps of: a) planting in pollinating proximity seeds of corn synthetic lines LP41.1B, having ATCC accession NO. 209029and LP44.1A, having ATCC accession NO. 97888; b) cultivating corn plants resulting from the planting until the time of flowering; c) emasculating the flowers of one of said synthetic lines LP41.1B or LP44.1A; d) allowing natural cross pollination to occur between the synthetic lines; and e) harvesting seeds produced on the emasculated plants of the synthetic line.
Claim 9
Independent Claim
92 words
A method for producing a synthetic hybrid corn seed designated P55, having ATCC accession No. 209429, comprising the steps of: a) planting in pollinating proximity seeds of corn synthetic lines LP41.1B, having ATCC accession NO. 209029and LP44.1A, having ATCC accession NO. 97888; b) cultivating corn plants resulting from the planting until the time of flowering; c) emasculating the flowers of one of said synthetic lines LP41.1B or LP44.1A; d) allowing natural cross pollination to occur between the synthetic lines; and e) harvesting seeds produced on the emasculated plants of the synthetic line.
Claim 10
Dependent Claim
30 words
The synthetic hybrid corn seed of claim 7 wherein synthetic line LP41.1B, having ATCC Accession No. 209029, is the female parent of synthetic hybrid P55, having ATCC accession No. 209429.
Claim 11
Dependent Claim
30 words
The synthetic hybrid corn seed of claim 7 wherein synthetic line LP44.1A having ATCC Accession No. 97888, is the female parent of synthetic hybrid P55, having ATCC accession No. 209429.
Claim 12
Dependent Claim
50 words
A synthetic hybrid corn plant and seed designated P55, having ATCC accession No. 209429, produced by crossing a synthetic hybrid corn plant according to claim 2 with another, different corn plant, the resulting progeny having one half of the nuclear genotype of the synthetic hybrid corn plant of claim 2.
Claim 13
Dependent Claim
29 words
A synthetic hybrid corn line designated P55, having ATCC accession No. 209429, which retains the morphological and physiological characteristics of the parents of P55, having ATCC accession No. 209429.
Claim 14
Dependent Claim
29 words
A synthetic hybrid corn line designated P55, having ATCC accession No. 209429, which retains the morphological and physiological characteristics of the parents of P55, having ATCC accession No. 209429.
Claim 15
Dependent Claim
22 words
A seed corn blend comprising a mixture of male sterile hybrid corn seed and the synthetic hybrid corn seed of claim 1.
Claim 16
Dependent Claim
88 words
Corn grain produced by the interplanting of the synthetic hybrid corn seed of claim 1 with a male sterile hybrid corn seed comprising the steps of: (a) planting, in pollinating proximity, seeds of synthetic hybrid corn plant P55, having ATCC accession No. 209429, and seeds of a male sterile corn hybrid; (b) cultivating corn plants resulting from the planting; (c) allowing the P55, having ATCC accession No. 209429, corn plants to pollinate the male sterile hybrid corn plants; and (d) harvesting the resulting corn grain from all plants.
References Cited (Backward Citations)
US5491295A
Cited
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