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小毛茛(Ranunculus ternatus Thunb.)花粉流潜能初探
王金平; 李天煜; 汪小凡; 李海军; 贾宗超;   
信阳师范学院生物系!河南信阳 桂林 464000
摘要:
在自然居群中对小毛茛传粉机制与距离作了观测,并对开花后花粉萌发能力的变化作了研究,结果是:该种兼具虫媒或风媒传粉机制,以虫媒传粉为主;传粉距离多数局限于2m以内,但不排除远距离传粉的可能性;体外萌发试验表明,该种花粉萌发率在开花第一天甚低,开花后24h达到最高值。作者推测,小毛茛花粉以近距离散布为主,但具有远距离传播的潜能。
关键词:  小毛茛  传粉机制  花粉流潜能  
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