高产水稻的产量构成及其生长发育规律  

Yield construct and development of high yield rice

作　　者：王乐丰[1] 王孝甲[1] 李香顺[1] 王瑞霞[1] 

机构地区：[1]吉林市农业科学院水稻研究所,吉林132101

出　　处：《延边大学农学学报》2000年第3期172-175,共4页Agricultural Science Journal of Yanbian University

基　　金：省科委攻关项目 !(96 0 1 0 7- 6 )

摘　　要：对水稻产量 1 1 71 5.9kg/hm2 的构成及其生长发育规律进行了研究 .结果表明 ,高产田每平方米有效穗数在 450个左右 ,有效分蘖率在 86%以上 ,每平方米实粒数达 4.2万粒 ,齐穗期叶面积指数 (LAI)为 6.8,齐穗期中层叶片的消光系数为 0 .61 。The yield and construct development of rice yield 11 715.9 kg/hm 2 were studied.The results showed that the effective ear of grain per square meter are about 450; effective tillering rate are above 86%,bear fruit grains are 4.2 ten thousand per square meter; LAI is 6.8 at heading stage; Optical coefficient in the middle level leaf is 0.61 at heading stage; the illumination intensity in the lower level leaf is over the light compensate point.

关 键 词：有效穗数 实粒数 水稻 产量构成 生长发育 

分 类 号：S511.04[农业科学—作物学]