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穗花杉种群雌株结种观察研究
萧乾德
绥宁县科学技术委员会 湖南绥宁422600
摘要:
该文是对神坡穗花杉种群雌株结种的生态、物候动态观察 ,对其种胚着生部位 ,生长期及其它五年翔实记录的分析结果。神坡穗花杉种群雌株种胚鳞芽苞 ,普遍着生于上年生枝顶或上年结有种子而未成熟的枝顶。种胚鳞芽苞绽裂 ,即可见有梗胚珠多个簇状、对生、上下左右有序排列。种子从当年 3月形成胚珠至翌年6月成熟坠落 ,需经 1 4~ 1 5个月。
关键词:  神坡    穗花杉种群    雌株结种    种胚鳞芽苞
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