明恢70及其组合的选育和应用

Breeding and utilization of restoring line Minghui 70 and its combinations

明恢 70是以 IR5 4作母本与明恢 63杂交 ,经过连续多年多点病区自然诱发鉴定和室内接菌鉴定筛选育成的 .它具有丰产性好、抗性强、米质优、抗谱广、恢复力强、配合力好等特点 .以其作为父本配制的汕优 70、特优 70、威优 70等组合综合性状好 ,在各级区试中均表现出显著的增产效应 .其中 ,汕优 70、特优 70已通过福建省及中国农作物品种审定委员会审定 。

After several years' multi location selection of natural and artificial inoculations, restoring line Minghui 70 has been developed from the cross of IR54 and Minghui 63. It possesses with the desired characteristics of high yield, strong resistance and wide resistant spectrum to diseases, superior grain quality, strong restoring ability and ideal combining ability. Its hybrids, Shanyou 70, Teyou 70, and Weiyou 70 performed well in agronomic characteristics and yield in all regional trials. Among them, Shanyou 70 and Teyou 70 have passed through the approval of Fujian Province and the nation, and have been popularized widely.