摘要
研究水稻穿梭育种世代材料在不同生态稻区的表现,结果表明,生育期的长短随纬度的升高而延长,植株高度随日平均气温的升高而增高.不同生态稻区表现的农艺性状的变异系数呈相似的趋势,上下代农艺性状有一定相关性并明确了不同生态稻区选种类型。
The performances of rice shuttle-breeding materials in various ecological regions in China were studied.Results indicated that the growth stage lengthened with ascending of the latitud,and the plant height heightened with ascending of the dailly average temperature.The coefficient of variability of the main agronomical traits in various ecological regions was shown to have similar tendency.Significant correlation was observed between F_2 and F_3 performances and between F_3 and F_4 performances.Breed- ing objectives for various ecological regioins were suggested.
出处
《浙江农业学报》
CSCD
1996年第4期208-212,共5页
Acta Agriculturae Zhejiangensis
基金
国家"八五"育种攻关水稻穿梭育种子专题
关键词
穿梭育种
生态区
农艺性状
水稻
Shuttle-breeding
Ecological region
Main agronomical traits
