And there is no significant change in root length.
牙根长度的变化无统计学意义。
All of the regulators did not have significant effect on the root length.
四种生长调节剂对根长生长没有明显的促进或抑制作用。
The mean value of root diameter and root length markedly increased with root order.
随根序增加细根平均直径和平均根长显著增加；
The length of root is an important index that stands for the plant development level.
而根的长度是根发育水平的一个重要的指标。
The length of root is an important index that stands for the plant development level.
而根的长度是根发育水平的一个重要的指标。
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