US4230485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of increasing grain yield in field corn by application of triacontanol
Assignee: Purdue Research Foundation
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Filing: 1978-11-14
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Granted: 1980-10-28
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Expires: 1998-11-14
Abstract
Abstract A field corn specific method of treatment with 1-triacontanol [CH 3 (CH 2 ) 28 CH 2 OH] which produces a significant yield increase is disclosed. The method teaches that the stage of plant maturity is the key to the attainment of increased yields in field corn. Foliar applied rates from about 2 mg per acre to about 56 mg per acre are equally effective, which makes widespread commercial farm use practical.
Inventors
- 👤 Alvin J. Ohlrogge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:49
CPC Classifications
A; A01; A01N; A01N31/00; A01N31/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
48 words
The method of enhancing the grain yield of a field corn crop by applying triacontanol to the foliage of a corn plant at a rate of less than 112 mg per acre and at a growth stage of the corn plant after tassel initiation inside the corn plant.
Claim 2
Independent Claim
48 words
The method of enhancing the grain yield of a field corn crop by applying triacontanol to the foliage of a corn plant at a rate of less than 112 mg per acre and at a growth stage of the corn plant after tassel initiation inside the corn plant.
Claim 3
Dependent Claim
27 words
The method in accordance with claim 1 in which said triacontanol is applied at a rate of between about 2 mg and about 56 mg per acre.
Claim 4
Dependent Claim
20 words
The method in accordance with claim 1 in which said triacontanol is applied in a solution which also contains chloroform.
Claim 5
Dependent Claim
19 words
The method according to claim 1 in which said triacontanol is applied in a solution which also contains acetone.
Claim 6
Dependent Claim
15 words
The method according to claim 3 in which said solution also contains a wetting agent.
Claim 7
Dependent Claim
25 words
The method according to claim 5 in which said triacontanol is applied in a solution which contains about 0.5 pint of wetting per 100 gallons.
Claim 8
Dependent Claim
28 words
The method according to claim 6 in which said solution is sprayed over said crop at a rate of between about 20 gallons and 50 gallons per acre.
References Cited (Backward Citations)
US4150970A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |