摘要
1987-1988年在大田栽培条件下,对汕优63出穗前、后群体干物质生产、分配、产量构成因素、稻谷产量等进行了研究.结果表明:(1)每亩穗数、每穗颖花数、结实率、千粒重与产量均呈显著或极显著地线性正相关,相关系数分别为:0.6984、0.6582、0.4230和0.6615;(2)生物产量是大面积生产上左右产量的主要因素(r^2=0.927),出穗前、后群体干物质生产量对产量形成具有同等重要的作用;(3)群体干物质生产量出穗前与每亩穗数、出穗后与每亩总颖花量均呈正相关,相关系数分别为:0.8290和0.7980.
Under the field culture condition, studied the yield component, the dry matter produc- tion and distribution of the population before and after heading and the grain yield in Shanyou 63 in 1987-1988. The results are as follows. 1. The grain yield were significantly positively correlated with the panicle number per mu, the spikelet number per panicle, the fil- led spikelets percentage, and 1000-grain weight, The correlation coefficients were 0.6980, 0.6582, 0.4230 and 0.6615, respectively. 2. The biological yield was the main factor af- fecting the grain yield in the field production. The dry matter production of the population before and after heading had the same important effect on the grain yield formation. 3. The dry matter production of the population before heading were positively correlated with the panicle number per mu, the totol spikelets number per mu. The corrclation coefficient were 0.8290 and 0.7980, respectively.
出处
《江苏农学院学报》
CSCD
1989年第4期9-12,共4页
Jiangsu Agricultural Research
关键词
水稻
产量
群体
干物质
构成因素
rice
yield componemt
population dry matter production
