Canopy seed banks and serotinous adaptations are particularly prominent in fire-prone ecosystems.In this study,we recorded the number of open and closed cones in a P.yunnanensis forest,we observed the ripening year of the cones,and investigated the response of closed cones to high temperatures and forest fires.Closed cones could be retained in the canopy for seven years,and open cones nine years.The germination rate of closed cone seeds decreased with increased serotiny time.The germination rate of seeds fr...
【基金】
国家自然科学基金项目(31160092)
【更新日期】
2017-02-24
【分类号】
S791.257
【正文快照】
seeds in the post-fire and unburned plots originated from cones that ripened in different years.In sum,the serotinous conesfor P.yunnanensis were adapted to fire in fire-prone habitats.大多数植物果实一旦成熟就从树冠上脱落或释放种子,形成种子雨掉落至地面,种
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