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不同穴内密度对水稻生长发育及产量的影响
引用本文:袁万臣,商文楠,刘岩,张丰转,金学泳,金正勋.不同穴内密度对水稻生长发育及产量的影响[J].黑龙江农业科学,2009(4):21-23.
作者姓名:袁万臣  商文楠  刘岩  张丰转  金学泳  金正勋
作者单位:东北农业大学农学院,黑龙江哈尔滨,150030
基金项目:东北农业大学创新团队发展计划,黑龙江省教育厅重大项目 
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。

关 键 词:水稻  穴内密度  生长发育  产量

Effect of Different Densities inside Hole on Rice Growth and Yield
YUAN Wan-chen,SHANG Wen-nan,LIU Yan,ZHANG Feng-zhuan,JIN Xue-yong,JIN Zheng-xun.Effect of Different Densities inside Hole on Rice Growth and Yield[J].Heilongjiang Agricultural Science,2009(4):21-23.
Authors:YUAN Wan-chen  SHANG Wen-nan  LIU Yan  ZHANG Feng-zhuan  JIN Xue-yong  JIN Zheng-xun
Institution:Agronomy College of Northeast Agricultural University;Harbin;Heilongjiang 150030
Abstract: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.
Keywords:rice  density inside hole  growth  yield
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