Meanwhile, laws on seedling crown formation and ways of controlling its elongation have been studied so as to make better use of seedling rootstock.

同时研究蔷薇根颈的发生和生长规律以及对其长度的调控方法，为更好的利用实生砧木提供依据。

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Meanwhile, laws on seedling crown formation and ways of controlling its elongation have been studied so as to make better use of seedling rootstock.

同时研究蔷薇根颈的发生和生长规律以及对其长度的调控方法，为更好的利用实生砧木提供依据。

youdao