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
图4 种植密度对不同株型玉米冠层透光率的影响
H1、H2、H3、H4、H5分别为距地面15 cm、雌穗至地面中部、穗部、顶部至雌穗中部和顶部5个高度。缩写同图1
Fig. 4 Effect of plant density on photosynthetically active radiation (PAR) transmission in canopies of different types of maize
H1 is 15 cm above the ground, H2 is distance from the soil surface to the ear, H3 is the ear height, H4 is distance from the ear to the canopy top, and H5 is the top canopy. Abbreviations are the same as those given in Fig. 1.