Identification method and application of pathogenic bacteria of weedy rice

Abstract

The invention discloses an identification method and application of pathogenic bacteria of weedy rice, and particularly relates to the technical field of identification of the pathogenic bacteria of the weedy rice. The method includes the specific steps: S1, widely collecting weedy rice disease samples; S2, separating, purifying and storing the pathogenic bacteria of the weedy rice; S3, identifying the pathogenic bacteria of the weedy rice; and S4, determining pathogenicity of the pathogenic bacteria of the weedy rice. According to the method, investigation and screening of pathogenic fungi ofthe weedy rice are actively carried out, so that a pathogenic fungus resource database of the weedy rice is established; fungus herbicides are developed advantageously, and can be applied to rice production to reduce the harm to the weedy rice, the safety of rice planting is guaranteed to the maximum extent, the economic benefit of rice farmers is improved, agricultural development and farmer income increase are further facilitated, and important scientific significance and wide application prospects are achieved.

Description

technical field [0001] The invention relates to the technical field of identification of weedy rice pathogenic bacteria, more specifically, the invention relates to an identification method and application of weedy rice pathogenic bacteria. Background technique [0002] Weedy rice, also known as wild rice and miscellaneous rice, is a global weed damage. Weedy rice associated with cultivated rice is widely distributed in many countries and regions in the world. Their morphological characteristics are between wild rice and cultivated indica and japonica rice. Weedy rice is very similar to wild rice. The mature seeds are light, dormant, and easy to shatter. The tillering and flowering stages are generally earlier than the associated cultivated rice varieties. Compared with cultivated rice, weedy rice competes for nutrients, The dominance of water and light will result in reduced rice yield and quality. In rice production, the yield reduction caused by weedy rice can generally r...

AI Technical Summary

Problems solved by technology

[0002] Weedy rice, also known as wild rice and miscellaneous rice, is a global weed damage. Weedy rice associated with cultivated rice is widely distributed in many countries and regions in the world. Their morphological characteristics are between wild rice and cultivated indica and japonica rice. Weedy rice is very similar to wild rice. The mature seeds are light, dormant, and easy to shatter. The tillering and flowering stages are generally earlier than the associated cultivated rice varieties. Compared with cultivated rice, weedy rice competes for nutrients, The dominance of water and light will result in a reduction in rice yield and quality. In rice production, the yield reduction caused by weedy rice can generally reach 4.3% to 8.4%. In severe cases, the yield can be greatly reduced.

[0003] In recent years, weedy rice has begun to occur in transplanted rice areas in northern China, and its distribution has gradually expanded, causing more and more serious damage to the yield and quality of cultivated rice. Weedy rice is the same species as cultivated rice, but weedy rice belongs to the wild type , follow the law of natural survival in the process of survival and reproduction, and its phenotype, stress resistance and other characteristics are somewhat different from those of cultivated rice. Weed pathogenic fungi are natural enemies of weeds, and there have been many successful examples of pathogenic microorganisms controlling weeds , the biological herbicides developed by using fungi are called fungal herbicides. Although the method of using biotechnology to control weedy rice is still at the theoretical and early stage of exploration, the idea of ​​using biotechnology to control weedy rice has broad potential. Foreground, therefore, using weed pathogens to develop fungal herbicides to control the damage of weedy rice is a new idea. The most basic work in the research and development of fungal herbicides is the investigation of weed pathogens. Research studies have not yet been reported

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