US4677246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protogyny in Zea mays
Assignee: DeKalb Genetics Corp
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Filing: 1985-04-26
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Granted: 1987-06-30
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Expires: 2005-04-26
Abstract
Abstract Novel protogynous Zea mays plants are disclosed, including a novel protogynous inbred line, LALGI. Also disclosed are a process to produce such Zea mays plants and hybrids resulting from crossing such plants with other inbred lines such as Iowa Stiff Stalk Synthetic Lines.
Inventors
- 👤 Paul A. Armond
- 👤 Peter M. Orr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:30
CPC Classifications
A; A01; A01H; A01H6/00; A01H6/46; A01H6/4684; Y; Y10; Y10S; Y10S47/00; Y10S47/01
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
30 words
A method to induce protogyny in plants of Zea mays comprising introducing into Zea mays genes for said trait from plants of Zea diploperennis and subsequently selecting for said trait.
Claim 2
Independent Claim
30 words
A method to induce protogyny in plants of Zea mays comprising introducing into Zea mays genes for said trait from plants of Zea diploperennis and subsequently selecting for said trait.
Claim 3
Dependent Claim
17 words
The method of claim 1 wherein said introduction is by means of crossing plants of said species.
Claim 4
Dependent Claim
17 words
The method of claim 2 wherein the F 1 generation plants produced are backcrossed with Zea mays.
Claim 5
Dependent Claim
17 words
The method of claim 2 wherein Zea mays is employed as the female parent in said cross.
Claim 6
Dependent Claim
17 words
The method of claim 2 wherein Zea mays is employed as the male parent in said cross.
Claim 7
Dependent Claim
13 words
The method of claim 1 wherein said Zea mays is inbred line LH38.
Claim 8
Dependent Claim
7 words
Zea mays produced according to claim 1.
Claim 9
Dependent Claim
13 words
Zea mays produced according to claim 1 and designated as inbred line LALGl.
Claim 10
Dependent Claim
3 words
Protogynous Zea mays.
Claim 11
Dependent Claim
3 words
Protogynous Zea mays.
Claim 12
Dependent Claim
32 words
Hybrid Zea mays plants produced by crossing protogynous Zea mays plants produced by the method of claim 1 other inbred lines such as an Iowa Stiff Stalk Synthetic line of Zea mays.
Claim 13
Dependent Claim
17 words
Hybrid Zea mays plants produced according to claim 10 wherein said protogynous plants are inbred line LALGl.
Claim 14
Dependent Claim
19 words
Hybrid Zea mays plants produced according to claim 10 wherein said Iowa Stiff Stalk Synthetic line is inbred A632Ht.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-29 | 1990-12-29 | 1991-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-29 | 1994-12-29 | 1995-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-29 | 1998-12-29 | 1999-06-30 | $7700.00 | Window Closed / Lapsed |