20.如图为天竺�叶片实验14c标记的�萄糖�着生长素iaa浓度高的地方移动此特性可在生产实践上用于 A.促进扦插的枝条生根 b.使 Template




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tomski20.如图为天竺�叶片实验14c标记的�萄糖�着生长素iaa浓度高的地方移动此特性可在生产实践上用于 a.促进扦插的枝条生根 b.使 coloring