增温对玉米茎秆生长发育、抗倒性和产量的影响

刘东尧,闫振华,陈艺博,杨琴,贾绪存,李鸿萍,董朋飞,王群

Effects of Elevated Temperature on Maize Stem Growth, Lodging Resistance Characters and Yield

LIU DongYao,YAN ZhenHua,CHEN YiBo,YANG Qin,JIA XuCun,LI HongPing,DONG PengFei,WANG Qun

表1 不同处理下株高、穗位高、节间长度和茎粗的变化

Table 1 The change of plant height, ear height, stem length and stalk width under different treatments

品种 Cultivar 处理 Treatment 株高 Plant height (cm) 穗位高 Ear height (cm) 穗位系数 Ear coefficient 穗下节间长 Stem length under ear (cm) 穗上节间长 Stem length above ear (cm) 第三节间长 3rd internode length (mm) 茎粗 Stalk width (mm) 茎粗系数 Stalk width coefficient 截面惯性矩Moment of inertia(mm4) ZD958 CK 274.33a 100.20a 0.37a 94.12a 107.52a 115.33a 20.16a 5.72a 8111.66a CK+2℃ 295.67b 139.40b 0.47b 111.67b 132.77b 149.33b 18.72b 7.98b 6040.42b CK+4℃ 314.33b 149.00b 0.47b 123.20c 144.23c 163.33c 18.35b 8.90c 5575.95b XY335 CK 294.33a 97.60a 0.33a 93.60a 149.60a 164.67a 23.99a 6.86a 16265.35a CK+2℃ 335.00b 132.20b 0.39b 109.43b 165.65b 171.67b 18.54b 9.26b 5809.57b CK+4℃ 374.00c 155.80c 0.42b 131.77c 183.72c 218.33c 19.60b 11.14c 7234.58b