沈阳农业大学学报2012，Vol.43Issue(6)：736-740,5.
杂草稻竞争对栽培稻群体干物质生产和籽粒灌浆的影响
Effects of Weedy Rice Interference on Dry Matter Accumulation and Grain Filling of the Cultivated Rice
摘要
Abstract
Weedy rice WR03 -12 and cultivated rice Shennong265 were used in the field experiment to study the effects of weedy rice on dry matter accumulation and grain filling of cultivated rice. The results showed that the competition of weedy rice had little effect on photosynthetic rate and the transpiration rate of the cultivated rice. Biological yield, leaf dry weight, panicle dry weight, stem and sheath dry weight of cultivated rice were linearly with the increase of weedy rice density, and all the traits of cultivated rice were very significantly negative with weeds. When the density of the weedy rice increased, cultivated rice grain delayed and shortened grain fill. The competition effect of weedy rice on the secondary branch was greater than on the primary branch. Weedy rice competition is likely to affect the dry matter production of cultivated rice and influence the final yield of rice.关键词
杂草稻/竞争/干物质生产/籽粒灌浆Key words
weedy rice/ cultivated rice/ dry matter accumulation/ grain filling分类
农业科技引用本文复制引用
马殿荣,丁国华,刘晓亮,唐亮,杨庆,徐正进,陈温福..杂草稻竞争对栽培稻群体干物质生产和籽粒灌浆的影响[J].沈阳农业大学学报,2012,43(6):736-740,5.基金项目
现代农业产业技术体系建设专项资金项目(CARS-01-13) （CARS-01-13）
"十二五"农村领域国家科技计划项目(2011BAD35B02-01) （2011BAD35B02-01）
辽宁省教育厅重点实验室项目(LS2010143) （LS2010143）
沈阳农业大学国家自然科学基金启动基金项目(20082002) （20082002）
