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林业科学 ›› 2006, Vol. 42 ›› Issue (7): 47-51.doi: 10.11707/j.1001-7488.20060708

• 论文及研究报告 • 上一篇    下一篇

北方地区皂荚种子及荚果形态特征的地理变异

兰彦平1 顾万春2   

  1. 1北京市农林科学院农业综合发展研究所,北京100089;2.中国林业科学研究院林业研究所,北京100091
  • 收稿日期:2004-08-17 修回日期:1900-01-01 出版日期:2006-07-25 发布日期:2006-07-25

Geographical Variation of Morphologic Characteristics of Gleditsia sinensis Seeds and Legumes in the North Region

Lan Yanping1,Gu Wanchun2   

  1. 1. Institute of Agriculture System and Development, Beijing Academy of Agriculture and Forestry Beijing 100089; 2. Research Institute of Forestry, CAF Beijing 100091
  • Received:2004-08-17 Revised:1900-01-01 Online:2006-07-25 Published:2006-07-25

摘要:

对我国皂荚北方自然分布区7个产地采集的皂荚种子及部分荚果进行取样测定,分别测定荚果及种子10项形态指标,结果发现:各指标在同一群体不同家系间差异显著;不同群体间,除荚果宽、种子长、荚果长宽比外,其余指标差异均达显著或极显著水平;单荚果质量、荚果长度、荚果宽度及荚果长宽比表现为同地理经度上的南北变异;荚果宽厚比及种子长宽比,表现为同地理纬度的东西变异;荚果厚度、种子长度与种子长宽比表现为西南—东北向变异;种子千粒质量无明显的地理变异规律,主要与分布地点的海拔高度、水分、太阳辐射及炎热状况的综合作用有关。

关键词: 皂荚, 种子, 荚果, 形态特征, 地理变异

Abstract:

10 morphologic characteristic indexes of seeds and legumes in Gleditsia sinensis were investigated in 7 locations in China. The result showed: There were significant differences among morphologic characteristics of individual tree from the same population, and an extremely significant difference existed among those from different populations except width of legume, length of seed, and length to width ratio of legume. The mass, length, width and length to width ratio of legume showed a south-north variation at a same longitude; Width to thickness ratio of legume, and length to width ratio of seed were proved a west-east variation at a same latitude; Southwest_northeast variation existed at the thickness of legume, length of seed and length to width ratio of seed; There was no significant trend of geographic variation in 1 000 seeds' mass, which were mainly related to the altitude of distribution locations, water, solar radiation, the length of frost-free period and the burning hot.

Key words: Gleditsia sinensis, seed, legume, morphologic characteristics, geographic variation