Indoor rice variety Magnaporthe oryzae resistance identification method

Abstract

The invention discloses an indoor rice variety Magnaporthe oryzae resistance identification method, comprising the steps of firstly performing spray inoculation indoors, recording susceptible varieties in a classifying way, and ending a test under the situation of susceptible contrasting with LTH; growing seedlings again for nosotropic varieties, then performing indoor in vitro leaf segment liquid dripping inoculation, recording susceptible varieties in the classifying way, and ending a test; growing seedlings again for nosotropic varieties, then performing liquid dripping inoculation, and timely recording morbidity conditions after a disease state is stable. The technology set of resistance screening, combining three inoculation methods, avoids the defect of a single inoculation method and saves manpower and material resources, finally the indoor Magnaporthe oryzae-resisting capability of a rice variety can be really shown, and test results can lay a stable and reliable foundation for the excavating of field popularized varieties and variety resistance gene, and the like.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a method for identifying blast resistance of indoor rice varieties. Background technique [0002] Rice is an important food crop in the world, especially in Asia, and rice blast (Magnaportheoryzae) caused by Ascomycetes is one of the main diseases that affect the safe production of rice. In addition, the actual control of rice blast is complicated and widely distributed. As well as the severity of the damage, rice blast has always been highly concerned by governments and researchers in various places. [0003] Hubei Province is located in the middle and lower reaches of the Yangtze River, with complex landforms, including mountains, hills and flat lakes. Rice has always been the crop with the largest planting area and total output in Hubei Province. The sown area accounts for more than 50% of the province's total grain sown area, the total output accounts for abo...

AI Technical Summary

Problems solved by technology

The use of disease-resistant varieties to resist the prevalence of rice blast is an effective safety measure, but in actual production, the resistance of a single disease-resistant variety will be lost after long-term large-scale planting, resulting in the prevalence and outbreak of rice blast. It is a long-term scientific research task for rice breeding and disease resistance researchers to constantly search for new resistance source materials