广适优质两系杂交水稻新组合臻两优钰占的选育与应用

Breeding and Application of New Two-line Hybrid Rice Combination Zhenliangyou Yuzhan with Good Grain Quality and Wide Adaptability

臻两优钰占是湖南亚华种业科学研究院用自育抗稻瘟病优质温敏核不育系隆臻36S与自育的优质恢复系钰占组配而成的两系杂交水稻新组合。该组合具有稳产、抗病抗逆、广适、品质优良、抗倒性强等特点,2020—2022年相继通过长江中下游中籼、长江上游中籼、华南晚籼、湖南中籼等4个生态区域国家或省级品种审定。

Zhenliangyou Yuzhan,derived from the blast-resistant and high-quality TGMS line Longzhen 36S and the high-quality restorer line Yuzhan,is a new two-line hybrid rice combination developed by Hunan Yahua Seed Industry Scientific Research Institute.With the characteristics of stable yield,strong disease and stress resistances,wide adaptability,fine grain quality and strong lodging resistance,it was successively registered and released for commercial production provincially in Hunan Province as medium indica rice,and nationally in the upper,middle and lower reaches of Yangtze River as medium indica rice and in south China as late indica rice,from 2020 to 2022.