种植密度对不同株型玉米冠层光能截获和产量的影响

柏延文,杨永红,朱亚利,李红杰,薛吉全,张仁和

Effect of planting density on light interception within canopy and grain yield of different plant types of maize

Yan-Wen BAI,Yong-Hong YANG,Ya-Li ZHU,Hong-Jie LI,Ji-Quan XUE,Ren-He ZHANG

表2 不同株型玉米产量构成因子与种植密度的回归关系

Table 2 Regression equation between yield components and planting densities of different types of maize

项目 Item 品种 Hybrid 回归方程 Regression equation R2 穗粒数 陕单609 Shaandan 609 y= -24.3x+714.3 0.992** Kernel number 秦龙14 Qinlong 14 y= -33.6x+725.3 0.930** 陕单8806 Shaandan 8806 y= -37.2x+722.0 0.964** 粒重 陕单609 Shaandan 609 y= -1.2x+42.1 0.994** Kernel weight 秦龙14 Qinlong 14 y= -1.1x+36.9 0.974** 陕单8806 Shaandan 8806 y= -1.4x+37.9 0.975**