玉米生理成熟后倒伏变化及其影响因素

薛军,王群,李璐璐,张万旭,谢瑞芝,王克如,明博,侯鹏,李少昆

Changes of Maize Lodging after Physiological Maturity and Its Influencing Factors

Jun XUE,Qun WANG,Lu-Lu LI,Wan-Xu ZHANG,Rui-Zhi XIE,Ke-Ru WANG,Bo MING,Peng HOU,Shao-Kun LI

表4 玉米生理成熟后茎秆抗折断力、基部节间力学强度、干物质积累及含水率相关性分析

Table 4 Correlation coefficients among breaking force, mechanical strength, dry matter accumulation and moisture content of maize stalk after physiological maturity

指标 Indicator 抗折断力 Breaking force 穿刺强度 Rind penetration strength 压碎强度 Crushing strength 弯曲强度 Bending strength 穿刺强度Rind penetration strength 0.6552** 压碎强度Crushing strength 0.6562** 0.7253** 弯曲强度Bending strength 0.7373** 0.5908** 0.6758** 单位长度干重 Dry weight per unit length 0.7356** 0.5432** 0.5836** 0.7311** 含水率Moisture content 0.5096** 0.4914** 0.4430** 0.5155**