玉米各生育阶段之间的相关性及遗传特性分析  

Analysis on Correlation and Genetic Characteristics between Growth Stages of Maize

作　　者：崔俊明[1] 张红艳[1] 黄爱云 刘瑞芳[1] 王永士[1] 郭鹏飞[1] 成明锁 刘保国 

机构地区：[1]安阳市农业科学院,河南安阳455000 [2]林州市农业科学研究所 [3]滑县枣村乡农业技术推广站

出　　处：《现代农业科技》2012年第5期59-60,62,共3页Modern Agricultural Science and Technology

摘　　要：选用6个中晚熟、5个早熟玉米自交系,分别组配杂交组合。运用NCⅡ设计,对25个杂交组合的生育阶段进行了分析,结果表明:出苗至拔节期、拔节至抽雄期,早熟组合生育天数短,生长发育快;中晚熟组合生育天数长,生长发育慢,抽雄期可以作为玉米早熟性的重要生理性状和育种参数。抽雄至散粉期、散粉至吐丝授精期、吐丝授精至成熟期3个阶段相互间无显著关系。Choosing six therein late-maturing and five early-maturing maize inbred lines,hybrid combinations were developed respectively. Using NC Ⅱ design,growth stages of 25 combinations were analyzed. The results showed that：compared with the late-maturing maize,the early- maturing maize showed shorter duration from the emergence to elongation, elongation to tasseling stages, and rapid ;the late-maturing maize showed longer growth and development duration,and slow growth. The tasseling stage could be considered as important physiological traits and breeding parameter to early maturity of maize. There was no significant relationship between tasseling to powder stage ,powder to spinning stage,spinning insemination to mature stage pairwise.

关 键 词：玉米 生育阶段 相关性 遗传特性 

分 类 号：S513.032[农业科学—作物学]