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3 不同处理下茎秆力学特性与农艺性状、维管束结构的相关性

Table 3 Correlation between mechanical characteristics and agronomic trait and vascular bundle in maize stalk under different treatments

品种 Cultivar 力学特性 Mechanical characteristics 株高 Plant height 穗位高 Ear height 茎粗 Stalk width 截面惯性矩 Moment of inertia 地上部第三节间长 3rd joint length 边缘维 管束数目 Marginal vascular bundle number 边缘维 管束面积 Marginal vascular bundle area 中心维 管束数目 Central vascular bundle number 中心维 管束面积 Central vascular bundle area ZD958 抗推力 Thrust resistance -0.860** -0.966** 0.987** 0.890** -0.972** 0.983** 0.913** 0.798** 0.970** 穿刺强度 Puncture strength -0.478 -0.623 0.706* 0.648 -0.706* 0.61 0.618 0.578 0.622 破碎强度 Crushing strength -0.826** -0.825** 0.775* 0.929* -0.890** 0.844** 0.806** 0.720* 0.841** XY335 抗推力 Thrust resistance -0.939** -0.945** 0.938** 0.845** -0.939** 0.954** 0.959** 0.943** 0.963** 穿刺强度 Puncture strength -0.670* -0.534 0.626 0.532 -0.626 0.571 0.571 0.532 0.556 破碎强度 Crushing strength -0.063 -0.227 0.131 0.200 -0.195 0.252 0.251 0.233 0.244