Seed breeding and production method of high-quality multi-resistance high-yield three-line hybrid rice zhenxianyou 62

Abstract

The invention discloses a seed breeding and production method of high-quality multi-resistance high-yield three-line hybrid rice zhenxianyou 62, which comprises the following step: hybridizing a high-quality rice-blast-resistant high-combining-ability sterile line zhenxian 1A used as a female parent and a high-quality bacterial-blight-resistant intersubspecific strong excellent restoring line zhenhui 62, thus obtaining the hybrid rice zhenxianyou 62 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, multi-resistant, high-yield three-line hybrid rice Zhenxianyou 62 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, the breeding of hybrid ri...

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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, the breeding of hybrid rice in my country has progressed rapidly, and a large number of new hybrid rice varieties have been bred and widely used in production. There is no major improvement, no resistance to bacterial blight and rice blast, no breakthrough in yield potential, easy to lodging, and a large distance from the requirements for the development of high-quality, high-yield, and efficient agriculture

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