紧凑型玉米杂交种产量源库特征  

Source-sink Characteristics on the YieldLeaf-upringt Corn Hybrid

作　　者：姜岩[1] 马玉波[1] 穆春生[1] 杨向东[1] 

机构地区：[1]长春市农业科学院

出　　处：《延边大学农学学报》1998年第1期12-15,共4页Agricultural Science Journal of Yanbian University

摘　　要：对５个典型紧凑型玉米杂交种的产量源库特征进行了研究，获得了如下结果：紧凑型玉米杂交种的物质生产优势主要表现在出穗后经济产量形成期，这与平展型玉米杂交种物质生产的优势主要表现在出穗前迥然不同；紧凑型玉米杂交种的库容优势也十分明显，就其总体而言，全生育期物质生产量与库容比例高于平展型（丹玉１３号）；紧凑型玉米杂交种获得高产的前提是在增加种植密度和扩大库容量的基础上，增强源的供应能力，保持一定的库源比值．The source-sink characteristics on the yield of five typical leaf-upringt corn hybrid were studied. The results were as follow: The heterosis in matter production for leaf-upringt corn is mainly in the yield forming period after heading, it is different from that of traditional hybrid, which have heterosis in matter production mainly in the period before heading. The heterosis in sink capacity of leaf-upringt is also obvious and the proportion of matter production to capacity is higher than traditonal hybrid(Danyu 13)in whole growing season; On the basis of increasing density of plant and sink capacity, it is houd increase supply ability of source and retain rate of sink-source for getting high yield in leaf-upringt corn hybrid.

关 键 词：紧凑型玉米 库容量 物质生产 籽粒库充实率 

分 类 号：S513.035[农业科学—作物学]