【摘要】 红松天然种群有许多适应风媒传粉的特点 ,传粉多集中发生在睛朗天气较多的 6月中旬 ,物候期延迟或雨季提前可导致花粉大量损失 ,授粉不足。花粉在不同高度上分布有一定差异 ,在授粉有效高度 ( 2 5m左右 )花粉密度最大。红松花粉短距离传播效率较低。更多还原

【Abstract】 The natural populations of Pinus koraiensis have some anemophily advantages.Pollination often occurs in the middle June at clear days.Howere,the phenological delay or raing season advance may cause a great amount of pullens loses.Pallens allocation varies with the different height in the stand.The highest density appears at the available height (about 25m).Korean pine pollens can be transported in a limited distance.更多还原