Method for making seeds through hybridizing among three series of paddy rice

Abstract

A three-line hydridizing method for culturing new variety of paddy rice with high quality, yield and resistance to diseases and pests features the hybridization between the sterile-line Tianfeng A as female parent and recovery-line Guanghui 998, a long-grained non-glutinous rice, as male parent.

Description

(1) Technical field [0001] The invention relates to a rice three-line hybrid seed production method, which belongs to the utilization of rice heterosis [0002] technology field. (2) Background technology [0003] At present, the main ways to utilize heterosis in indica rice at home and abroad include the three-line method (sterile line, maintainer line, restorer line) based on nucleoplasmic interaction such as the wild type or red lotus type, and the two-line method based on light and temperature sensitive conditions. Law. Since 1973, when my country was the first in the world to realize the three-line combination of indica hybrid rice, my country has maintained a world-leading level in the field of rice heterosis utilization research. In the 1970s and 1980s, my country's production of Shangshanyou system and Weiyou system three-line hybrid rice developed rapidly; in the 1990s, my country's Shanyou, Weiyou, Gangyou, IIyou, Youyou, Boyou A total of hundreds of three-line h...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to use the improved three-line rice as a parent to cross-breed three-line hybrid rice with good quality and high yield, so as to solve the problems of poor quality and low yield of traditional three-line hybrid rice and reduce the Breeding costs, improve agricultural economic benefits, can be used for large-scale agricultural production of hybrids

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