谷子灌浆期叶片比叶重变化及产量关系研究  

Studies on Relationship between Specific Leaf Weight at the Kernel- Filling Stage and Grain Yield of Foxtail Millet

作　　者：王凯玺[1] 丁增伟 张海金[1] 张文飞[1] 陈国秋[1] 

机构地区：[1]辽宁省水土保持研究所,辽宁朝阳122000 [2]珲春市农业技术推广总站,吉林珲春133300

出　　处：《东北农业科学》2016年第1期32-34,63,共4页Journal of Northeast Agricultural Sciences

基　　金：现代农业产业技术体系专项资金(CARS-07-12.5-B11);国家科技支撑项目子课题(2014BAD07B-01-03);辽宁省农业创新团队项目(2014201008-2)

摘　　要：研究了不同生育期的5个谷子品种在灌浆期顶三叶(旗叶、倒二叶、倒三叶)比叶重变化及比叶重与产量的关系。结果表明:在灌浆期谷子顶三叶比叶重变化呈现明显的下降趋势,生育期长的品种下降最慢,中间型次之,生育期短的品种下降最快。谷子灌浆期顶三叶比叶重与灌浆期顶三叶贡献籽粒产量呈正相关,相关性为显著或极显著。In this paper, we studied changes of specific leaf weight of top-three leaves, i.e., the flag leaf, second leaf, third leaf, and the relationship between the specific leaf weight at the kernel-filling stage and yield of five foxtail millet varieties with different growth period. The results showed that the specific leaf weight of top-three leaves decreased significantly during the kernel-filling stage, varieties with long growth period decreased the slowest, intermediate type the second, and varieties with shorter growth period decreased the fastest. Specific leaf weight and contribution yield during the kernel-filling stage were positively correlated in foxtail millet, the correlation were significant or extremely significant.

关 键 词：谷子 灌浆期 比叶重 产量 

分 类 号：S515[农业科学—作物学]