三裂叶豚草雄花序分化的气候效应分析_stmopen 关键词】: 三裂叶豚草; 雄花序; 分化; 气候效应 [gap=1446]Keywords】: Ambrosia trifida; male inflorescence; differentiation; climatic effect
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...雄花序;雄花;解剖结构;小孢子囊 [gap=1858]Key words: chestnut(Castanea mollissima Blume); staminate inflorescence; male flower; anatomic structure; microsporangium ..
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其它几种针叶树产生小雄花序。
雄花序一小头花状序,直径的6 - 10毫米,有花序梗。
Male inflorescences a capitulum, 6-10 mm in diam., pedunculate.
以20~30年生白桦的雌雄花序为材料,研究东北地区白桦花发育的生殖周期和发育时序特征。
The reproductive cycle and temporal characteristics of flower development for the female and male inflorescences of 20 to 30_year_old Betula platyphylla in northeastern China were studied.
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