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观察分析了粳型胞质籼型不育系 K17A的特征特性 ,并测配筛选出两个杂交组合。早杂 K优 6 19和晚杂 K优 117具有熟期适中、丰产性好、抗性较强、制种产量高等特点 ,分别于2 0 0 1年 4月和 2 0 0 2年 3月通过浙江省农作物品种审定委员会的审定。
The characteristics of japonica cytoplasmic male sterile line K17A were observed and analyzed, and two hybrid combinations were screened out. Early hybrid K you 6 19 and late hybrid K you 117 with moderate maturity, good yield, strong resistance, high seed production, respectively, in April 2001 and March 2002 by Validation of Zhejiang Province Crop Variety Approval Committee.