Chemical emasculation agent for wheat and male sterility line induction method

Abstract

The invention discloses a chemical emasculation agent for wheat and a male sterility line induction method. Two common chemical agents, propisochlor-atrazine suspoemulsion and BAU9430, are proportionally compounded, the compounding condition is simple and easy to realize; the spraying process is the same with that of a field herbicide or insecticide, other auxiliary conditions are not needed, the method is very strong in operability, and is simple and easy to apply; the chemical hybridizing agent at the specific concentration can induce more than 98% of the male sterile when used to process the wheat, the result reproducibility is good and stable, and the biological phenotypes like flag leaf area, ear length and plant row of a plant are not affected. The chemical hybridizing agent is an efficient cheap novel chemical hybridizing agent for the wheat, the emergence of the agent expands the requirements of different genotypes of wheat on the class group of the chemical hybridizing agent, and the chemical hybridizing agent is also an important technical support for the breeding of a new variety of the super-high-yield hybrid wheat, and promotes the extensive production of the hybrid wheat in a wider range.

Description

technical field [0001] The invention belongs to the technical field of hybrid wheat hybrid seed production, and in particular relates to a compound novel chemical andricide for wheat and a method for inducing male sterile lines thereof. Background technique [0002] The phenomenon of male sterility in higher plants exists widely in nature. At present, most plants have realized the use of heterosis by using male sterile lines, and all of them have achieved the purpose of greatly increasing the yield. Among them, the yield increase of corn, rice, rapeseed and other crops is particularly outstanding. . [0003] Previous studies have shown that although wheat is a self-pollinated crop, it also has obvious heterosis. The utilization of heterosis has always been concerned by wheat breeders and has been a research hotspot in the wheat breeding field for many years. Currently available wheat male sterility pathways are mainly divided into the following four categories: CMS (Cytopla...

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Problems solved by technology

[0006] Aiming at the defects and deficiencies of the existing preparation technology, the present invention provides a chemical andricide for wheat and a method for inducing male sterile lines thereof, which solves the defects of high production cost and excessive dosage of the existing chemical andricide for wheat At the same time, it also overcomes the problem of poor malecidal effect caused by the interaction between some chemical andricides and wheat genotypes

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