Seed breeding and production method of high-quality high-yield multi-resistance two-line hybrid rice 9you 832

Abstract

The invention discloses a seed breeding and production method of high-quality high-yield multi-resistance two-line hybrid rice 9you 832, which comprises the following step: hybridizing a high-quality rice-blast-resistant high-combining-ability photo-thermo-sensitive genic male sterile line zhen 911S used as a female parent and a high-quality bacterial-blight-resistant strong excellent restoring line zhenhui 832, thus obtaining the two-line hybrid rice 9you 832 having high quality, high rice blast and bacterial blight resistance and high yield. The rice species bred by the method has the advantages of favorable comprehensive yielding ability, moderate maturing period, high quality, good commodity and high stress tolerance.

Description

technical field [0001] The invention relates to a hybrid rice breeding and seed production method, in particular to a high-quality, high-yield, multi-resistance two-line hybrid rice 9you 832 breeding and seed production method. Background technique [0002] Rice is the largest crop in my country. Hybrid indica rice has high yield, wide adaptability, and is easy to cultivate. The planting area accounts for 50% of the total rice area in the country, and the output accounts for 60% of the total rice output. It has made a great contribution to my country's grain production. The improvement of hybrid rice varieties has always been the key field of agricultural research in my country. High quality, multiple resistance and high yield are the long-term goals of hybrid rice breeding in my country. [0003] With the increase of population and the decrease of land, the food problem is still a social problem that cannot be ignored. In the past ten years, my country's hybrid rice breedin...

AI Technical Summary

Problems solved by technology

[0003] With the increase of population and the decrease of land, the food problem is still a social problem that cannot be ignored. In the past ten years, my country's hybrid rice breeding has progressed rapidly, and a large number of new three-line hybrid rice varieties have been bred and applied in production. However, these three-line The rice quality of the hybrid rice combination has not been greatly improved, it is not resistant to bacterial blight and rice blast, and its yield potential has not made breakthrough progress.

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