Compound for inducing plant male sterility

A technology for male sterility and inducing plants, which is applied in plant growth regulators, botanical equipment and methods, organic chemistry, etc. High efficacy with few side effects

Inactive Publication Date: 2004-04-21
HUNAN PLANT PROTECTION INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Genetic "three-line" or "two-line" crops that have not been successfully matched or successfully matched without significant advantages, such as cotton, tobacco, pepper, and the heterosis of crops such as wheat and sorghum have not been used in production or widely used so far
In addition, crops such as cotton and pepper still use manual detasseling and pollination to produce hybrid seeds, which not only has low economic benefits, but also requires a lot of labor during the flowering period, which greatly limits their production and application

Method used

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  • Compound for inducing plant male sterility
  • Compound for inducing plant male sterility
  • Compound for inducing plant male sterility

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] In 1996 Changsha middle rice chemical killing and seed production

[0067] 1. Combination: female parent C-964, male parent C-9697

[0068] 2. Seed production area: 20m 2

[0069] 3. Chemical andricide: potassium 2-(4-chlorophenyl)-6-methyl-4-pyrone-3-carboxylate (HCHA-968E)

[0070] 4. Dosage form: 5% water

[0071] 5. Dose: 800~1000g / hm 2

[0072] 6. Application period: III-V stage of rice panicle development

[0073] 7. Application method: foliar spray

[0074] 8. Seed production effect: outcross seed setting rate is 38.1%.

Embodiment 2

[0076] From December 1997 to April 1998, chemical killing of rice seeds in Hainan

[0077] 1. Combination: female parent C-964, male parent C-9697

[0078] 2. Seed production area: 30m 2

[0079] 3. Chemical andricide: Potassium 2-(4-methylphenyl)-6-methyl-4-pyrone-3-carboxylate (HCHA-972A)

[0080] 4. Dosage form: 5% water

[0081] 5. Dose: 900~1100g / hm 2

[0082] 6. Application period: III-V stage of rice panicle development

[0083] 7. Application method: foliar spray

[0084] 8. Seed production effect: Seed production output 1467kg / hm 2 , 93% hybrid purity.

Embodiment 3

[0086] In 2000, Chemical Male Killing Seed Production of Mid-season Rice

[0087] 1. Combination: female parent C-964, male parent C-9697

[0088] 2. Seed production area: 1000m 2

[0089] 3. Chemical andricide: potassium 2-(4-chlorophenyl)-6-methyl-4-pyrone-3-carboxylate (HCHA-968E)

[0090] 4. Dosage form: 5% water

[0091] 5. Dose: 800~1000g / hm 2

[0092] 6. Application period: III-V stage of rice panicle development

[0093] 7. Application method: foliar spray

[0094] 8. Seed production effect: the seed setting rate of artificial assisted pollination in the high-dose treatment area is 36.4%, and the seed production output is 1830kg / hm 2 , the hybrid purity is 98.9%; the seed setting rate of artificial assisted pollination in the low dose treatment area is 56.5%, and the seed yield is 4093.5kg / hm 2 , 91% hybrid purity.

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Abstract

A compound for inducing male sterility of plant (paddy rice, wheat, cotton, etc) is disclosed, which is just the 3-carboxyl-4-pyranone. Its advantages are high efficiency (98% or more), high fruit bearing rate for hybridized seeds, and high selection index (more than 30).

Description

Technical field: [0001] The invention belongs to plant growth regulators, in particular to a compound for inducing male sterility in plants. Background technique: [0002] Chemical male killing (or chemical hybridization) is an extremely important way to utilize crop heterosis. This approach is not restricted by genetic factors, and can realize complete free preparation of hybrid combinations, and can make full use of its heterosis. The method of genetic male sterility (also known as "three-line method" and "two-line method") is not only strictly restricted by genetic genes and cannot widely use germplasm resources, but also has male sterility "defects" in genetic hybrids Genes affect the full play of heterosis and reduce stress resistance and other disadvantages. Since the 1950s, there have been reports on the chemical andricidal research of crops in foreign countries. So far, compounds with andricidal activity have been found to include halogenated fatty acids, alkylphos...

Claims

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Application Information

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IPC IPC(8): A01N43/16C07D309/38
Inventor 粟贵武
Owner HUNAN PLANT PROTECTION INST
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