玉米品种源库特性及与产量的关系  

Relationship between yield and source-sink characteristics of maize cultivars

作　　者：李明[1] 刘钢[1] 王刚[1] 于琳[1] 

机构地区：[1]东北农业大学农学院,哈尔滨150030

出　　处：《东北农业大学学报》2007年第3期313-319,共7页Journal of Northeast Agricultural University

基　　金：黑龙江省科技攻关项目(GB01B304-02)

摘　　要：文章探讨了寒地玉米源库特点及其与产量的关系,试验选择了不同类型品种进行了减源限库处理。结果表明,品种间对减源和限库处理的反应存在差异。试验中采用的两个紧凑型玉米适于密植,尤其是DH808具有保绿特点,表现出源供应能力强而库调动光合产物能力弱的特点。两个平展型品种不耐密植,尤其是四单19的叶面积下降较快,而籽粒调动光合产物的能力较强。源库性状改变均影响玉米产量。The traits of resource and sink of maize in cold-region and their relationship with yield were discussed in this paper. Different type cultivars were planted with treatment of source-reducing or sink-limiting. The results indicated that reaction is different among the cuhivars in the treatment of source-reducing and sink- limiting. The cultivars of upright-leaf type are suitable close-planting, especially DH808 has the characteristics of ＂stay green＂ in maturity; it means that the ability of source is strong, but the redistribution ability is weak during kernel filling. The cultivars of horizontal-leaf type are not suitable for close-planting, especially the LA of Sidan 19 declines relative rapidly, but the ability of dry matter redistribution is relatively strong. Source and sink traits all affect the yield of maize.

关 键 词：玉米 品种 源库 

分 类 号：S513[农业科学—作物学] S5