井冈山江西杜鹃的物候观测

PHENOLOGY OBSERVATION ON RHODODENDRON KIANGSIENSE OF JINGGANGSHAN

以分布于井冈山的野生花卉江西杜鹃为研究对象,经2009~2010连续两年对其萌芽期、新梢生长期、展叶期、开花期、果熟期等主要物候期进行观测,获得了该野生花卉的物候期数据,结果表明：（1）4月中旬叶芽和新梢开始萌动和生长,此时植株进入生长期;（2）9月初花芽开始膨大,次年3月25~28日始花,4月15~18日开始进入开花盛期,随后进入果实生长期;（3）8月下旬至10月中旬为果实成熟盛期,10月中旬以后果实开始脱落。

In this paper, the main phenological periods as germination, foliation, flowering, maturity and growth of new treetop of Rhododendron kiangsiense in Jinggangshan were observed. The results showed, （1） The leaf bud generally bourgeoned from mid April, and the treetop began to grow in mid April, which indicated the advent of the process of growing. （2） The buds began to inflate in early September and flower from March 25th -28th in the next year, its flower fullbloom stage was from April 15th -18th, and then the young fruit formed. （3） The fruit mature period was from late August to mid October, the fruits began to drop after the midmonth of October.