【作者】 李月明； 孙楠； 孙丽惠； 马云祥； 毕文博； 王延波； 郝楠；

【Author】 Li Yueming;Sun Nan;Sun Lihui;Ma Yunxiang;Bi Wenbo;Wang Yanbo;HaoNan;Liaoning Provincial Academy ofcornby;Liaoning Provincial Academy ofcornb;

【机构】 辽宁省农业科学院玉米研究所；

【摘要】 选用10个杂交种和17个骨干自交系进行田间和室内种子活力测定研究。结果表明:在杂交种的活力测定方法中,田间出苗率与发芽率、低温发芽率、活力指数Ⅱ呈显著正相关,说明发芽率、低温发芽率和活力指数Ⅱ是测定玉米杂交种活力的有效测定指标。在自交系的活力测定方法中,田间出苗率与发芽率、低温发芽率、活力指数Ⅰ呈极显著正相关,说明发芽率、低温发芽率和活力指数Ⅰ是测定玉米自交系活力的有效测定指标。依据有效活力测定指标对杂交种和自交系进行活力聚类分析,表明杂交种先玉335、辽单565、郑单958、辽单1211和辽单566为活力较高品种,自交系ph6wc、昌7-2、辽6049、沈3336、辽2379、中106和辽1203为活力较高自交系。更多还原

【Abstract】 Field and laboratory determination of seed vigor of 10 hybrids and 17 inbred lines was measured.The results show,for hybrids,Field emergence and germination rate,anti-cold germination rate.vigor index Ⅱ was significant correlation.For inbred lines,Field emergence and germination rate,anti-cold germination rate,vigor index I was Highly significant correlation.Clustering analysis made with effective dynamic index classified,hybrids and inbred lines were divided into three groups.The hybrids Xianyu 335,Liaodan 565,Zhengdan 958,Liaodan 1211 and Liaodan 566 were high activity was high dynamic maize varieties.The inbred lines ph6 wc,Chang7-2,Liao6049,Shen3336,Liao2379,Zhongl06,Liaol203 was high dynamic inbred lines.~2更多还原