【摘要】 <正> 林木种子在采集后至播种前,一般都要经过一段时问的贮藏。贮藏期间的长短及贮藏环境条件对种子衰老速度有着不同的影响,具体表现在种子寿命。为研究不同贮藏条件对兴安落叶松、长白落叶松及樟子松种子寿命的影响,做了一些试验工作。更多还原

【Abstract】 The seeds of three conifer species-——Larix gmelinii, Larixolgensis ahd pinus sylvestris var. mangolica——are stored in different conditi-ons of relative humidity and temperature. Whenever R. H. increases 10％,the balance water content increases 1—2％ of the three species seeds. When R. H. is over 80％, the increasing range becomes larger. Generally the balance water content of pine is lower than that of larch. It is a principal reason that the temperature influence is greater than relative humidity. If the temperature is 40℃ and the moisture is 90％, the seeds viability is only 6—12 days, but if the low temperature is0℃ and the high moisture is 90％, the seed viability can extent one year or more.The three storage ways for seeds ares storage in bag at low temp- erature in refrigerator; storage in the refrigerator on the ground line at natural temperature and air-tight storage in refrigerator The via- bility of the seeds stored in these three ways is approximately same and is not lower than 13％ about one year.更多还原