Method for breeding hybrid rice Kaiyou 18
A technology of hybrid rice and hybrid seed production, applied in the breeding field of hybrid rice Kaiyou 18, which can solve the problems of long growth period and low growth period, and achieve the effects of high seed setting rate, good color fading at ripening stage, and moderate plant type
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[0058] 1. Target character design: The yield per mu is more than 600kg; the rice quality meets the third-class national standard for edible rice; the lodging resistance and disease resistance are strong; the whole growth period is similar to Shanyou 63.
[0059] 2. Breeding methods
[0060] Kaiyou 18 was bred by hybridization method. In the 1-2 years before the grouping, various sterile lines and restorer lines were carefully observed and recorded, and their characteristics, yield, rice quality, resistance to stress and growth period were mastered. According to the requirements of breeding goals, Kai06S, which has large ears and more grains, strong tillering ability and good rice quality, was selected as the female parent. Huaihui 9817, which has large ears and many grains, strong tillering ability, good rice quality, short plant, sturdy stalk, and early maturity, was selected as the male parent, and crossed with the group, and finally bred into Kaiyou 18, which has both abundant ...
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