麻风树种源间种实性状变异研究  

Variations of fruit and seed traits of Jatropha curcas L. among provenances

作　　者：惠文凯 陈晓阳[1] 刘明骞[1] 陈丽君[1] 刘双霜[1] 李俊成[1] 丁美美[1] 

机构地区：[1]亚热带农业生物资源保护与利用国家重点实验室,广东省森林植物种质创新与利用重点实验室,华南农业大学林学院

出　　处：《北京林业大学学报》2014年第3期110-114,共5页Journal of Beijing Forestry University

基　　金：广东省自然科学基金团队项目(9351064201000002)

摘　　要：对位于海口市东山林场试验基地的2年生麻风树种源的种实特征进行了调查,主要研究了麻风树种实的遗传变异。种源来源包括泰国、越南以及我国云南、四川、广西、贵州、海南等43个种源。对麻风树种实的单果均质量、百粒质量、出仁率、出籽率、种子大小、种子含油量等性状进行分析,结果显示,麻风树种源间种实呈显著的地理变异趋势,单果均质量、百粒质量和种子体积与纬度呈显著正相关,与经度呈显著负相关,尤其是单果均质量和种子百粒质量存在极显著的地理变异。本文揭示了麻风树种实性状变异规律与特点、性状指标间的关联,对海南省发展麻风树产业和促进麻风树种实经济性状的改良提供技术参考。In order to study the genetic variability of Jatropha curcas L. , the fruit characteristics of 2-year-old J. curcas of 43 provenances were investigated in Dongshan Forest Farm in Haikou City, southern China. The provenances involved Thailand, Vietnam and other areas in China, such as Yunnan, Sichuan, Guangxi, Guizhou and Hainan provinces, etc. The average single fruit weight, 100-seed-weight, kernel- producing rate, seed-producing rate, seed size, and seed oil content were analyzed, and also the geographic variation trends of the fruits in J. curcas germplasm were observed. The results showed that average single fruit weight, 100-seed weight and seed size were significantly positive correlated with latitude, and significantly negatively correlated with longitude, respectively. There was highly significant geographic variation for average single fruit weight and 100-seed weight. The geographic variation trends of seed and the correlations among seed traits were revealed, and this will provide technical reference for promoting and improving the economic traits of J. curcas in Hainan Province of southern China.

关 键 词：麻风树 种实特征 种源变异 地理变异趋势 

分 类 号：S718.46[农业科学—林学]