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.
出处
《东北农业大学学报》
CAS
CSCD
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)
关键词
玉米
品种
源库
maize
variety
source-sink
