种植密度对贵州春玉米茎秆抗倒伏性能及籽粒产量的影响

郑迎霞, 陈杜, 魏鹏程, 卢平, 杨锦越, 罗上轲, 叶开梅, 宋碧

Effects of planting density on lodging resistance and grain yield of spring maize stalks in Guizhou province

ZHENG Ying-Xia, CHEN Du, WEI Peng-Cheng, LU Ping, YANG Jin-Yue, LUO Shang-Ke, YE Kai-Mei, SONG Bi

表4 不同春玉米茎秆穿刺强度、抗折力方差分析

Table 4 Variance analysis of puncture strength and bending resistance of different spring maize

变异来源 Source of variation 穿刺强度Rind penetration strength 抗折力Bending strength 3 5 7 3 5 7 品种Varieties (V) ** ns ns ** ** ** 密度Density (D) ** ** ** ** ** ** 年份Year (Y) ns * ** ** ** ** 品种×密度V×D ns ns ns * ** ** 品种×年份V×Y ns ** ** * ns ns 密度×年份D×Y ns ns ns ** ** **