福建农业学报Issue(4)：313-317,5.
福建超级稻品种干物质生产特性研究
Characteristics of Dry Matter Production for Super Rice Cultivars in Fujian Province
摘要
Abstract
Physiological characteristics of four super rice cultivars were analyzed including dry matter accumulation , allocation and transportation as well as crop growth rate .The results showed that leaf area index (LAI) of super rice cultivars exhibited dynamic change as parabolic curve and peaked at full heading stage .Crop grow th rate (CGR) of each super rice cultivar was the highest during full heading stage and milky stage .CGR of four super rice cultivars were higher than that of the control during the entire growth stage ,indicating stronger photosynthetic production capacity of super rice .There was no significant relationship between grain yield of super rice cultivars and dry matter accumulation at the early developing stage (before stem elongation) ,but dry matter accumulation at mid and late developing stages (from stem elongation to ripening stage) ,indicating there was higher dry matter production capacity of super rice at mid and late developing stage . Furthermore , average output percentage and apparent transformation rates of stem and leaf dry matter for super rice cultivars were all lower than that of the control . Compared to the control ,the significant yield of super rice cultivar depends on higher dry matter production and stronger photosynthesis of leaves at mid and late developing stages .关键词
超级稻/叶面积指数/干物质生产/分配Key words
super rice/leaf area index/dry matter production/allocation分类
农业科技引用本文复制引用
何花榕,房贤涛,谢祖钦,杨惠杰..福建超级稻品种干物质生产特性研究[J].福建农业学报,2015,(4):313-317,5.基金项目
福建省科技计划项目---省属公益类科研院所基本科研专项（2014R1021-3）；福建省科技重大专项（2013NZ0002-2）；福建省财政专项---福建省农业科学院科技创新团队建设项目 （）
