农业现代化研究2012，Vol.33Issue(3)：363-366,4.
黑龙江寒地高产春玉米灌浆期不同群体冠层结构与产量各因素相关研究
Study on Canopy Structure Character of Spring Maize and Correlation to Yield Components under Filling Stage in Heilongjiang Province
摘要
Abstract
This experiment was carried out under field conditions in Heilongjiang Province. Two different plant type com varieties, Fenghel (flat type) and Zhengdan 958 (compact type), were chose to study the characteristics of canopy structure in grain filling stage. The correlation analysis between yield and canopy structure factors was analysized as well. The results indicated the 50000 plants/ hm2 of Fenghe 1 and 60000 plants/ hm2 of Zhengdan 958 reaching the highest yield, which was 9896 kg/hm2 and 10867 kg/hm2 respectively. As well as the leaf area index (LAO were highest in later filling stage. The trend of the mean foliage inclination angle (MFIA) increased first and then reduced gradually during the whole grain filling stage. Accompanied with the increasing densities, the plant height and ear height were increased, and the stem diameters were decreased at the same time. The leaf area index (LAI) showed a remarkable positive correlation with the spike number per hectare in the former and the middle rilling stage, while exposing a remarkable negative correlation with 100-kernel weigh. Furthermore, the experiment showed a positive correlation between the stem diameter and kernel number per spike, and a remarkable positive correlation between the stem diameter and 100-kernel weigh in grain filling stage.关键词
灌浆期/玉米/产量/冠层结构/紧凑型/平展型/密度Key words
grain filling stage/ maize/ yield/ canopy structure/ compact type/ flat type/ density分类
农业科技引用本文复制引用
孙继,杨猛,赵东旭,魏湜,顾万荣..黑龙江寒地高产春玉米灌浆期不同群体冠层结构与产量各因素相关研究[J].农业现代化研究,2012,33(3):363-366,4.基金项目
"十二·五"国家科技支撑计划项目"粮食丰产科技工程"(编号:2011BAD16B11). （编号:2011BAD16B11）
