不同栽插密度对鄂粳糯437分蘖动态和产量的影响  

Influence of Different Planting Density on Tillering Tendency and Yield of E-Jingnuo 437

作　　者：程建平[1] 胡刚[1] 吴建平[1] 游艾青[1] 刘凯[1] 杨国才[1] 吴继洪[2] 

机构地区：[1]湖北省农业科学院粮食作物研究所,武汉430064 [2]湖北省荆门市农业技术推广中心,湖北荆门445000

出　　处：《湖北农业科学》2009年第9期2076-2078,共3页Hubei Agricultural Sciences

基　　金：国家重大科技专项资助项目(2006BAD02A02);优质高产多抗水稻新品种选育项目(2006AA201A03);高产优质多抗水稻育种技术研究及新品种选育项目(2006BAD01A01)

摘　　要：在栽插密度为每公顷32.16万～45.00万穴范围内,研究了不同栽插密度对鄂粳糯437分蘖动态、产量及其构成因素的影响。结果表明,鄂粳糯437栽插密度以每公顷37.51万穴(株行距13.33 cm×20.00 cm)为佳;该密度下每穗粒数显著提高,并在一定程度上提高了结实率和千粒重,较好地协调了各产量构成因素。Influence of different planting density between 321 600-450 000 hole per hm^2 on the tillering tendency and the yield of E-Jingnuo 437 was studied. The result indicated that the best planting density for E-Jingnuo 437 was 375 100 hole per hm^2 （a row spacing 13.33 cm×20.00 cm）. Under this density, the number of grains per panicle obviously increased, and the seed setting rate and the 1 000-grain weight also increased to a certain extent.

关 键 词：晚稻 鄂粳糯437 栽插密度 产量 

分 类 号：S511.23[农业科学—作物学] S359.1