%0 Journal Article
%T Yield-formation and source-sink characteristics of rice genotypes under two different eco-environments<br>不同生态环境下水稻基因型产量形成与源库特性的比较研究
%A WANG Xun
%A DAI Tingbo
%A JIANG Dong
%A JING Qi
%A CAO Weixing
%A <br>王勋
%A 戴廷波
%A 姜东
%A 荆奇
%A 曹卫星
%J 应用生态学报
%D 2005
%I 
%X With nine Japanese varieties and two local cultivars of rice as test materials,this paper studied the characteristics of their yield-formation and source-sink characteristics under different eco-environments of Nanjing and Lijiang.The results showed that eco-environment had an obvious effect on rice grain yield and dry matter accumulation.High-yielding rice genotypes could accumulate more dry matter,especially in their late growth period.They had higher total spikelet number,leaf area index (LAI) and crop growth rate (CGR),as compared with other genotypes.The grain yield increased with increasing total dry matter accumulation,and significantly positively correlated with dry matter accumulation after heading,total spikelet number,LAI,and spikelet/ leaf area ratio.The results suggested that the lower grain yield in Nanjing than in Lijiang was mainly resulted from the lower LAI,total spikelet,dry matter accumulation and CGR after heading.
%K Rice
%K Genotype
%K Dry matter accumulation
%K Crop growth rate (CGR)
%K Leaf area index (LAI)
%K Spikelet/ leaf area ratio<br>水稻
%K 基因型
%K 干物质积累
%K 群体生长速率CGR
%K 叶面积指数（LAI）
%K 粒叶比
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=F88FD2B0B6415BEE&yid=2DD7160C83D0ACED&vid=7801E6FC5AE9020C&iid=E158A972A605785F&sid=D9D6C3CD78BED2C5&eid=06D504E5261AB652&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=15&reference_num=13