摘要
为研究高产水稻的物质生产及高产原因 ,选用本地区的高产品种 :吉玉粳、长白 9号、藤系 1 38三个品种 ,探讨了干物质的生产和产量构成因素 .试验结果表明 :藤系 1 38的产量最高 ,其主要原因为抽穗后干物质的积累较多 ,抽穗后的净同化率 (NAR)较高 ;吉玉粳产量较藤系1 38低 ,是由于净同化率较低所致 ;长白 9号产量最低 ,是由于其在整个生育期的叶面积指数(LAI)
For researching matter production and the reason of high yield,using high yield local varieties Jiyugeng,Changbai 9,Tengxi138,dry matter production and yield constitution factors were researched.The results showed yield of Tengxi138 is the highest. The main reason is there are more dry matter accumulate after earning,and the Net Assimilation Rate is higher.The yield of Jiyugeng is lower than Tengxi 138,the main reason is the lower NAR.The yield of changbai 9 is the lowest, because it's Leaf Area Index (LAI) at all the growth term is low.
出处
《延边大学农学学报》
2002年第1期34-38,共5页
Agricultural Science Journal of Yanbian University
