两优681选育与利用

Preliminary Report on Breeding and Utilization of Liangyou 681

利用籼型光温敏核不育系蜀光612S与蜀恢881配组成两优681，经试验、示范表明，比对照汕优63具有早熟、丰产、抗稻瘟病、米质优、制种产量高的特点。

Liangyou 681, an indica two-line hybrid rice combination, was bred from the cross of the photo-thermo-sensitive genie-male sterile line Shuguang 6125 and Shuhui 881 in 1995. Comparing with Shanyou 63, it performed early maturation, high yield, good quality and blast resistance. This combination has been registered in Le-Shan in 1998.