5个印度小桐子品种在云南省引种的初步调查分析

为了研究印度5个优良小桐子品种的种子形态及其在中国生长适应性，在国内进行种子形态测定以及苗期生长指标和生物量指标的测定。结果显示，5个印度品种和一个中国种源的小桐子种子在纵径和侧径上没有显著差异，横径上表现出了显著差异，中国种源的小桐子种子测量平均值为1．043cm，表现最差。而其他印度品种的种子形态指标差异不大。中国种源小桐子在高生长与地径生长方面优于印度品种。通过对印度5个品种的种子形态指标、生长指标、生物量指标和发芽率、含油率等指标表现的主成分分析并综合打分排序，得分由高到低依次为Nellore2、Nellorel、Chittgrh、J—ljist01和J03，前3个印度品种较能适应云南省的生长环境，但在苗期的生长上与中国当地品种存在一定的差异。

Investigation on Introduction of Five India Jatropha curcas L Cultivar in Yunnan Province

In order to study seed morphology and growth adaptability of five India Jatropha curcas cuhivars, we conducted a study to determine seed morphology, seeding stage growth and biomass index. The result showed that there were no significant differences within cultivars in the seed＇s vertical diameter, and side diameter. But there were extemely differences in horizontal diameter of cuhivars . The vertical diameter average value of seed from Chinese regions was the lowest level by 1. 043cm, there was no obvious difference among India Jatropha curcas cultivar in seed morphology. The seeds from Chinese regions were better than other five India cultivars in seedling height and ground diameter, By indicator analysis of seed morphology, growth adaptability, biomass, budding percentage and oil-bearing rate etc, results showed the added order as follows： Nellore2, Nellorel , Chittgrh, J-ljist01 and J03. The former three cuhivars have adapted to habitats and regions of Yunnan, but there are some differences with the Chinese local varieties in growth on seedling stage.