沈阳地区高产水稻群体主要农艺性状对产量的影响  

Effects of Main Agronomic Characters on Grain Yield of High Yielding Rice Plant Populations

作　　者：王术[1] 秦志列[1] 于建波[1] 谢晓东[1] 王立新[1] 王铮[2] 陈长卿[2] 

机构地区：[1]沈阳农业大学,辽宁沈阳110161 [2]辽宁省农业科学院,辽宁沈阳110161

出　　处：《沈阳农业大学学报》2001年第4期250-252,共3页Journal of Shenyang Agricultural University

基　　金：辽宁省科技厅课题

摘　　要：研究结果表明 ,水稻群体存在穗粒矛盾。穗数与产量间关系呈抛物线形 ,在辽宁沈阳地区水稻每公顷最适穗数在3.0×106～3.8×106之间。每穗颖花数、每穗成粒数、一次枝梗数和二次枝梗数与产量均呈直线线性相关 ,但增产效果不同。The results of experiment showed that the individuals were conditioned each other in rice plant populations. The relationship between grain yield and the number of panicles per unit area could fit in quadratic equation. The yields had significantly positive correlation with the number of spikelets, ripened grains, primary rachis-branches and secondary rachis-branches per panicle, but the effects of increasing yield were different. The available ways to obtain high yields in the cold area of northern China would be to increase grain number per panicle and to stabilize or to increase simultaneously panicle number per unit area.

关 键 词：农艺性状 水稻群体 产量 穗数 沈阳地区 

分 类 号：S511[农业科学—作物学]