root shoot ratio 根叶比
root-shoot ratio 根冠比
root-shoot balance 根冠平衡
root-shoot relation 根冠关系
root shoot relation 根冠关系
root-shoot relations 根冠关系
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。
The results showed that different media had significant effects on the survival rate, height, stem diameter, root length, shoot and root dry matter weight of eastern arborvitae.
研究结果表明，不同配合基质对侧柏幼苗的成活率、株高、径粗、根长、地上部和地下部干重均有显著影响。
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