初生叶;
As a rule, the primary leaves and the 1-4th trifoliolate leaves have greater leaf thickness and more number of palisade cells per unit leaf area.
初生叶和1&4节位的叶片较厚,单位叶面积栅栏细胞数目多;
Purification of Polyamine Oxidase from Cowpea ( Vigna unguiculata) Primary Leaves
豇豆幼叶多胺氧化酶的分离纯化
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