摘要
本文根据水稻生长阶段,首次将水稻冗余分为营养生长冗余(主要研究分蘖),生殖生长冗余(主要研究结实率),四川稻区和重庆市稻区(万州)多年试验表明:汕优63营养阶段分蘖的平均冗余分别为36.6%、39.1%,生殖阶段平均冗余分别为17.7%、14.6%;四川稻区、重庆稻区(万州)试验中,最佳有效穗、实粒数分别为16.25万穗/667m2、125.1粒/穗;四川稻区分蘖最佳冗余度为36.0%。
According to the stage of rice growth,the rice redundancy were divided into the nutrition growth redundancy and the procreation growth redundancy.The results in Sichuan rice area and Chongqing（Wanzhou）rice area for many years showed that the average redundancy of Shanyou 63 in the nutrient phase were 36.6 % and 39.1 % and the average redundancy of phase were 17.7 %、14.6 %,repectively.In the trial procedure of Sichuan＇s and Chongqing＇s rice district,the best effective heading was 0.01625 million/667m2,and the actual grain number was 125.1 grains/panicle.The best redundancy degree of Sichuan＇s rice district was 36.0 %.
出处
《西南农业学报》
CSCD
2007年第5期895-898,共4页
Southwest China Journal of Agricultural Sciences
基金
重庆市科技厅项目资助(CSTC1060/10462/10464)
关键词
水稻
生长冗余
超补偿
有效穗
rice
growth redundancy
over-compensation
effective heading
