in the early stage,the callose wall of microsporangium is thinner than that of the male fertile plant,it emits weaker flourescence;
在早期,其胼胝质壁较可育株的薄,发出的光较弱;
in the early stage,the callose wall of microsporangium is thinner than that of the male fertile plant,it emits weaker flourescence;
在早期,其胼胝质壁较可育株的薄,发出的光较弱;
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