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不同种群中海南粗榧(Cephalotaxus mannii)形态变异研究
向志强; 付永川; 刘玉成; 杜道林;
1.西南师范大学生命科学系;2.海南师范学院生物系
摘要:
通过变异系数和性状差异显著性检验,研究了海南粗榧在坝王岭等5个种群内和种群间不同形态变异以及形态总体变异。结果表明:①海南粗榧营养器官性状比生殖器官性状变异大;枝性状组中,分枝角度变异较小;叶性状组中,叶数量变异较大;球果、种子生物量变异都大于它们的其它性状。②在5个种群内,同一性状变异幅度基本相同。③同一性状在种群间和种群内的变异基本接近。④不同性状在种群间存在差异,有的显著,有的不显著,但种群间形态总体差异都不显著
关键词:  海南粗榧  种群  形态变异  变异系数  差异显著性检验  
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