摘要
为给本地区超高产小麦品种的选育提供指导依据,对目前江苏淮南地区推广面积最大的小麦品种扬麦16和高产小麦新品种宁麦18(产量达8500 kg/hm2以上)的群体特征及株型指标进行研究。结果表明:高产群体花后干物质积累量与籽粒产量呈极显著正相关;叶面积系数(LAI)于孕穗期最大;叶片长表现为倒二叶>倒三叶>旗叶,宽表现为旗叶>倒二叶>倒三叶,倒二叶叶面积最大,倒二叶、倒三叶宽与产量呈显著负相关;节间配置为1∶2.5∶3.5∶(5~5.5)∶(8~9)。
In order to provide guidance for the selection of cultivars with super-high yield,the population characteristics and the plant type index of Yangmai 1 6 and Ningmai 1 8 are studied with the yield over 8 500 kg/hm2 .The results indicate that the accumulation amount of dry matter after anthesis and grain yield have significantly positive correlation;LAI is the biggest at booting stage;the leaf length is ranked as top 2nd leaf>top 3nd leaf>flag leaf;the leaf width is flag leaf>top 2nd leaf>top 3nd leaf;the area of top 2nd leaf is the biggest,and the widths of top 2nd leaf and top 3nd leaf and yield have significantly negative correlation;the ra-tio of internodes on the stem is 1∶2.5∶3.5∶(5~5.5)∶(8~9).
出处
《金陵科技学院学报》
2013年第4期52-56,共5页
Journal of Jinling Institute of Technology
基金
农业部现代农业产业技术体系建设专项(CARS-3-1-1)