苦豆子种质资源调查及种子生物学特性研究  

Distribution and morphological variation of germplasm resource of Sophora alopecuroides

作　　者：阳翠[1] 杨飞[1] 马宏玮[1] 刘萍[1] 

机构地区：[1]宁夏大学农学院,宁夏银川750021

出　　处：《中国中药杂志》2010年第7期817-820,共4页China Journal of Chinese Materia Medica

基　　金：国家自然科学基金项目(30660017)

摘　　要：目的：探讨不同苦豆子种质资源的生物学特性,从形态上初步分析其遗传差异。方法：以生长在宁夏。甘肃。青海。新疆。内蒙古不同地区的23份野生苦豆子为材料,调查种子形态。大小。千粒重和发芽特性等性状。结果：不同居群的苦豆子在这些性状上均存在显著差异,最大的种子是4.70mm×3.50mm,最小的种子是3.80mm×2.90mm,千粒重为15.90~25.70g;对8个不同地域居群种子活力的研究表明,No.103和No.122的苦豆子种子活力较高,其发芽指数分别为36.51,36.24,活力指数为1323.49,1274.56。除种子大小这一性状外,其余性状的变异系数都超过10%。结论：不同居群的苦豆子间具有不同的遗传背景。Objective： To analyze the genetic difference of biological characters on germplasm resources of Sophora alopecuroides. Method： Twenty-three populations of S. alopecuroides from Ningxia, Gansu, Qinghai, Xinjiang and Inner Mongolian were used to analyze the seed size, 1000-grain weight, and germination characteristics and so on. Result： It showed that there were significant differences in seed size, 1000-grain weight and the vitality of seeds. The biggest seed of S. alopecuroides was 4.7 mm×3.5 mm, and the smallest was 3.8 mm×2.9 mm, and the 1000-grain weight was 15–26 g. Results of seeds vitality in 8 populations indicated that the highest vitality of seeds were No.103 and No.122. The germination index was 36.51 and 36.24 respectively, and the vitality index was 1 323.49 and 1 274.56. The coefficient of variation in seed traits exceeded 10% except the seed size. Conclusion： There are some differences and different heredity background in various S. alopecuroides germplasm resources.

关 键 词：苦豆子 生物学特性 种质资源 活力指数 

分 类 号：S567.239[农业科学—中草药栽培] S55[农业科学—作物学]