root-shoot ratio 根冠比
root-shoot relation 根冠关系
shoot root ratio 茎根比
root and shoot complex 根苗复合体
root and shoot 植物的根和最初破土长出的部分
shoot and root 地上部和根系
Because there is only one maternal plant in China, with less root shoot and limited scion, the speed of its propagation is very slow.
因母树仅有一株，且根孽极少，接穗有限，所以难以迅速繁殖推广。
The main viewpoints on the root shoot qualitative relations are morphological equilibrium, determining by environment and functional equilibrium.
反映根冠定性关系的主要观点有，形态平衡论、环境决定论和功能均衡论。
Using morphological characteristics, root-shoot ratio, anatomical structure of leaves, leaf water holding and WSD analyzed the water holding ability of 11 tree species.
从形态特征、根冠比、叶片解剖构造、叶片保水力、水分饱和亏等方面分析了11个树种对干旱的适应性特征。
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