摘要
研究了江西三清山天女花种子的特性,结果表明:(1)三清山天女花种群种子雨自10月初开始,10月末结束,10月中旬强度达高峰,玉京峰地段天女花种子雨持续时间较短;(2)产种率受母树冠层影响,即上层>中层>下层;种子败育率高(49.4%～100.0%);(3)主成分分析表明,乔木层盖度、大气湿度、光照因子以及土壤含水量对天女花种子发育产生显著影响。
Seed characteristics of Magnolia sieboldii in Sanqing Mountain were studied. The results showed that： 1） The seed of M. sieboldii in Sanqing Mountain began to fall early October, and stopped the end of October. The intensity of M. sieboldii seed rain reached a peak in mid-October. The time of M. sieboldii seeds falling in Yujing Peak was shorter than that in Sanqing Temple. 2） The seed production rate of M. sieboldii was affected by the parent canopy, with the upper 〉 middle 〉 lower. And the seed abortion rate of M. sieboldii was higher, between 49.4% - 100%. 3） Principal component analysis showed that the tree layer cover, atmospheric humidity, soil moisture and light factor all have a significant impact on the seed development of M. sieboldii in Sanqing Mountain.
出处
《亚热带植物科学》
2012年第1期26-30,共5页
Subtropical Plant Science
基金
江西省自然科学基金项目(2010GZN0148)
江西省教育厅科技计划项目(GJJ12608)
上饶师范学院植物学创新团队招标课题(1106)资助
关键词
天女花
种子特性
败育
种子雨
Magnolia sieboldii
seed characteristics
seed abortion
seed rain
