华北农学报2011，Vol.26Issue(6)：114-117,4.
玉米根系伤流量与产量关系研究
Study on the Relation between Root Bleeding Sap and Yield
摘要
Abstract
In order to find the relationship between the root bleeding sap and yield, and select the drought-resistance high-yield varieties. This paper used 10 corn hybrids which widely cultivated in North China Plain. According to statistics analysis of the bleeding sap in a day, it is found that the bleeding sap in morning have positive correlation with the yield,the bleeding in 7:00 - 8 :30 had direct liner relationship with the yield. It indicated that the root bleeding sap in early morning could be used as index for drought-resistance. The 10 corn hybrids could be classified in four clusters with the root bleeding sap and the yield. In that,Liyu 18,Jiyu 9,Zhengdan 958,Xingkang 2 and Luyu 13 was drought-resistance and stable-yield,Jundan 20 was drought-resistance and high-yield. These varieties could be planted in drought for stable and high yield.关键词
玉米/根系伤流量/产量Key words
Maize/ Root bleeding sap/ Yield分类
农业科技引用本文复制引用
李国强,周吉,曹治彦,路小芳,徐萍,张正斌..玉米根系伤流量与产量关系研究[J].华北农学报,2011,26(6):114-117,4.基金项目
"973"项目(2010CB951500) （2010CB951500）
