西南旱地油菜间作紫云英和秸秆覆盖的生产效应

周泉, 王龙昌, 马淑敏, 张小短, 邢毅, 张赛

Influences of Rape Intercropping with Chinese Milk Vetch and Straw Mulching on Productive Benefits in Dryland of Southwest China

Quan ZHOU, Long-Chang WANG, Shu-Min MA, Xiao-Duan ZHANG, Yi XING, Sai ZHANG

表3 油菜单株产量与农艺性状、根系形态的相关系数

Table 3 Correlation coefficients of agronomic traits and root morphological parameters with yield of rape

农艺性状 Agronomic trait 单株产量 Yield per plant 根系形态 Root morphology 单株产量 Yield per plant 株高Plant height 0.578* 总根长Total root length -0.009 根颈粗Diameter of root crown 0.827** 总根表面积Total root surfarea 0.493* 叶片数Leaf number 0.770** 平均根系直径Average root diameter 0.426 无柄叶数Sessile leaf number 0.774** 总根体积Total root volume 0.659** 一级有效分枝数Primary effective branch number 0.679** 根尖数Tips 0.089 二级有效分枝数Secondary effective branch number 0.723** 分枝数Forks 0.046 单株角果数Number of pods per plant 0.880** 交叉数Crossings -0.066