不同生态环境下籼粳中间型恢复系的主要农艺性状的比较研究  

Comparative studies on main agronomic traits in Indica-Japonica restore lines under different environments

作　　者：郭咏梅[1] 卢义宣[1] 谭春艳[1] 刘晓利[1] 张竹仙 王增民 邹勇 

机构地区：[1]云南省农业科学院粮食作物研究所,云南昆明650205 [2]开远市种子公司,云南开远661000 [3]弥勒县农技推广中心,云南弥勒652300

出　　处：《西南农业学报》2004年第4期422-425,共4页Southwest China Journal of Agricultural Sciences

基　　金：云南省"十五"重点攻关项目(2001NG-03)

摘　　要：以籼粳杂交后代选育出稳定的13个偏粳型恢复系R1～R13;14个偏籼型恢复系R14～R27作为试验材料,系统分析了株高、穗长、粒长、穗总粒数、穗实粒数、结实率、有效穗、千粒重8个农艺性状在昆明、玉溪、弥勒、开远4个不同环境下的表现以及相关分析。结果表明:恢复系主要农艺性状的变化主要是海拔高度差异造成的;株高、粒长、穗长随海拔的降低而增大;在不同海拔条件下株高、粒长、穗长、千粒重相对而言易受环境影响,其次是穗总粒数、穗实粒数、结实率,而有效穗相对比较稳定,受环境影响较小。The eight agronomic traits of Indica-Japonica restore lines were tested under four environments (Kunming, Yuxi, Mile and Kaiyuan). The results indicated that the difference in altitude was main reason for variation of the agronomic traits.With descending of altitude the plant height was heighten,and grain length and panicle length was lengthen.The effect of environment on the agronomic traits such as plant height,grain length,panicle length and 1000-grain weight was more significant than on total spikelets per panicle, filled spikelets per panicle and seed setting rate,but panicles/plant did not vary in different environments.

关 键 词：生态环境 农艺性状 杂交 选育 水稻 

分 类 号：S511.035.1[农业科学—作物学]