In order to study the different effects of germination of Pinus massoniana seeds under different soaking time, the seeds of Masson pine were immersed in water at 21℃ for 12, 24, 48, 72, 96, 120 and 144 h, respectively, then plated in culture dishes. The results showed that: The germination percentage of seeds soaked for 24, 48, 72, 96 and 120 h were higher, but the difference was not significant among the above five soaking treatments. After soaking for 12 h or 144 h, the germination rate was relatively low. Both 12-hour soaking time and 144-hour soaking time were significant different from other five kinds of seed soaking time (P < 0.05). Based on germination energy and germination index of P. massoniana seeds immersed in seven different soaking periods, it can be included that 48 h is the most appropriate soaking period. The fitting degree of the cubic of three germination indexes is the targest by comparing with 10 curves fitting.%为了解不同浸种时间下马尾松(Pinus massoniana)种子发芽的差异,对马尾松种子采用21℃清水分别浸泡12、24、48、72、96、120和144 h处理后培养,结果表明:浸泡24、48、72、96和120 h的马尾松种子发芽率较高,此5个处理间发芽率差异不显著,而浸泡12和144 h的马尾松种子发芽率较低,此2个处理分别与其他处理差异显著(P<0.05).综合7个处理的发芽势和发芽指数可知,室温22℃,水温21℃时,浸泡48 h的马尾松种子发芽效果最好.采用10种曲线拟合,3个发芽指标均为三次曲线拟合度最高.
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