玉米穗轴机械强度及其对机械粒收籽粒破碎率的影响

薛军, 李璐璐, 张万旭, 王群, 谢瑞芝, 王克如, 明博, 侯鹏, 李少昆

Maize Cob Mechanical Strength and Its Influence on Kernel Broken Rate

Jun XUE, LuLu LI, WanXu ZHANG, Qun WANG, RuiZhi XIE, KeRu WANG, Bo MING, Peng HOU, ShaoKun LI

表4 玉米穗轴含水率、干物质积累、穿刺强度与抗折断力的通径分析（河南新乡,夏玉米）

Table 4 Path analysis of moisture content, dry matter accumulation, penetration strength and bending strength of maize cob (Xinxiang, Henan, summer maize)

穗轴机械强度 Mechanical strength of cob 因素 Factors 直接通径系数 Direct path coefficient 间接通径系数 Indirect path coefficient X1 X2 X3 X4 X5 8 cm抗折断力 Bending strength of 8 cm cob X1 -0.299** -0.001 -0.047 0.151 -0.113 X2 -0.008 -0.019 0.665 -0.177 0.114 X3 0.779** 0.018 -0.007 -0.206 0.122 X4 -0.358** 0.126 -0.004 0.448 0.139 X5 0.220** 0.153 -0.004 0.431 -0.225 全长抗折断力 Bending strength of whole cob X1 -0.011 -0.004 -0.088 0.010 -0.265 X2 -0.370** -0.001 0.643 -0.012 0.223 X3 0.755** 0.001 -0.316 -0.014 0.249 X4 -0.023 0.005 -0.193 0.460 0.276 X5 0.440** 0.007 -0.188 0.427 -0.014