刺五加种子生态学的初步研究

为了扩大无性系植物——刺五加(Acanthopanax Senticosus)的资源,采用实验生态学的方法,进行了刺五加种子生态学的研究。结果:①不同种子处理方法对刺五加种子发芽的影响不同。种子出苗率以变温层积处理的最高,时间也短;而种子直播和果实直播明显地低于前者,而且时间也长。②采自不同天然次生林群落的刺五加种子千粒重不同,并影响到幼苗的出苗率以及高和地径的生长。其大小顺序均为采自硬阔叶林的种子>蒙古栎林的>山杨林的。

THE STUDY ON SEED ECOLOGY OF ACANTHOPANAX SENTICOSUS

The seed ecology of clonal plant, Acanthopanax Senticosus,has been studied by the experimental ecology method in order to increase its resource. Thc results are as follows: (1)The effects of different treatments on seedling on percentages of Acanthopanax senticosus seeds are different. The seedling percentage of the seeds stratificatcd under changing temperature is the high and fast to sprout, however ,it is low and slow by direct seedling and seeding with fruits. (2) The average weight of thousand grains of the seeds collected from different secondary forest communities are different, and influences on the seedlings percentages of seeds and growth in height and base diameters of seedling, the order of these communities is hardwood forest, mongolian oak forest and davidian poplar forest.