种植密度对玉米-大豆带状间作下大豆光合、产量及茎秆抗倒的影响

程彬,刘卫国,王莉,许梅,覃思思,卢俊吉,高阳,李淑贤,AliRAZA,张熠,IrshanAHMAD,敬树忠,刘然金,杨文钰

Effects of Planting Density on Photosynthetic Characteristics, Yield and Stem Lodging Resistance of Soybean in Maize-Soybean Strip Intercropping System

CHENG Bin,LIU WeiGuo,WANG Li,XU Mei,QIN SiSi,LU JunJi,GAO Yang,LI ShuXian,Ali RAZA,ZHANG Yi,Irshan AHMAD,JING ShuZhong,LIU RanJin,YANG WenYu

图7 相关性分析图 倒伏率（Lr）与株高（PH）、茎粗（SD）、茎叶干重比（S﹕L）、抗折力（SBF）、叶面积指数（LAI）、光合有效辐射（PAR）、净光合速率（Pn）、蒸腾速率（Tr）、气孔导度（Gs）、胞间CO2浓度（Ci）、主茎干重（Sw）、叶片干重（Lw）、单株分枝数（Bn）、单株有效荚数（Ep）和单株无效荚数（nEp）在P<0.05水平下的显著性差异

Fig. 7 Correlation analysis diagram The difference between lodging percentage (Lr) and plant height (PH), stem diameter (SD), stem / leaf ratio (S﹕L), stem bending force (SBF), leaf area index (LAI), photosynthetic active radiation (PAR), net photosynthetic rate (Pn), transpiration rate(Tr), stomatal conductance (Gs), intercellular carbon dioxide concentration (Ci), dry weight of main stem (Sw), leaf dry weight (Lw), number of branches per plant (Bn), number of effective pods per plant (Ep) and number of ineffective pods per plant (nEp) at P<0.05