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低温对长白落叶松花粉生命力的影响
引用本文:王宣.低温对长白落叶松花粉生命力的影响[J].防护林科技,2008(3):29-30.
作者姓名:王宣
作者单位:黑龙江省林业厅,黑龙江,哈尔滨,150090
摘    要:长白落叶松花期常常遇低温和霜冻,使雌雄花受冻,从而影响种子结实量。文章研究了不同低温对长白落叶松花粉生命力的影响,得出以下结论:-3~0℃是花粉的最佳保存温度;在相同低温条件下,随着处理时间延长,花粉生命力降低;撒粉前不同时期用低温处理对花粉生命力影响显著,愈靠近撒粉期的低温处理危害愈大;不同无性系在温度及储藏时间相同条件下,花粉的抗性不同。

关 键 词:长白落叶松  花粉生命力  低温

Effect of Low-temperature on Pollen Vitality of Lalix olgensis
WANG Xuan.Effect of Low-temperature on Pollen Vitality of Lalix olgensis[J].Protection Forest Science and Technology,2008(3):29-30.
Authors:WANG Xuan
Institution:WANG Xuan ( Forestry Dept. , Heilongjiang Prov. , Harbin 150090, Heilongjiang, China)
Abstract:Lalix olgensis often meets low-temperature and frost.Male and female flowering are frozed.Thus it influence the seed field.Effect of different low-temperatures on pollen vitality of Lalix olgensis were studied.The result shows that-3-0 ℃ is the optimal conserving temperature for pollen;under the same condition of low-temperature,vitality of pollen decreases with the time after treatment;the effect of low-temperature treatment on pollen vitality in different periods of pollination is significant.The nearer to the dusting period the low-temperature is,the bigger the damages are;the resistance of pollen with different clones is different under the same temperature and storage time.
Keywords:Lalix olgensis  pollen vitality  low-temperature
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