不同穴内密度对水稻生长发育及产量的影响  

Effect of Different Densities inside Hole on Rice Growth and Yield

作　　者：袁万臣[1] 商文楠[1] 刘岩[1] 张丰转[1] 金学泳[1] 金正勋[1] 

机构地区：[1]东北农业大学农学院,黑龙江哈尔滨150030

出　　处：《黑龙江农业科学》2009年第4期21-23,共3页Heilongjiang Agricultural Sciences

基　　金：东北农业大学创新团队发展计划资助项目;黑龙江省教育厅重大资助项目

摘　　要：选用东农04-18品种,在穴间密度为36.3 cm×16.5 cm的条件下,研究不同穴内密度对水稻生长发育及产量和产量构成因素的影响。结果表明,穴内密度为2棵苗处理在茎孽数、干物质积累、叶绿素含量、光合速率、穗数、千粒重、结实率、产量等方面均能保持较高的水平,穴内密度过大或过小均不利于水稻生长发育及产量的提高。Effect of different densities inside hole on rice growth and yield and yield components was studied under the same transplant density（36. 3 cm×16. 5 cm） with variety of Dongnong04-18. The results showed that stem-tiller number, dry matter accumulation, chlorophyll content, photosynthesis rate, panicle number, 1000-grain weight and seed setting rate reached relatively high level under two seedlings per hole condition. Higher and lower densities could obstruct rice growth and decreased yield.

关 键 词：水稻 穴内密度 生长发育 产量 

分 类 号：S511[农业科学—作物学]