关键词: 北柴胡, 种子, 植株, 生长特性, 地理生态因子

Abstract: Bupleurum chinense DC. is widely distributed in China and planted in many provinces, but the source of seeds, planting technology and management mode are different, which lead different characteristics, unstable quality and uncontrollable medicinal properties of Radix Bupleuri. The geographical variation, morphologica characteristics and plant growth status of the B. chinense seeds from 10 locations in 7 provinces of China were measured and analyzed, and the correlation of the variation of B. chinense seeds and plants were discussed. The results showed that there were significant differences in the seed length, width, thickness, 1 000grain weight and water content of B.chinense seeds from different locations (P<0.05). The 1 000grain weight was positively correlated with longitude；there was a significant positive correlation in water content and annual rainfall. The correlations between other geographical ecological factors and seed characteristics were not significant. The growth status of aboveground and underground parts of B. chinense plants showed significant differences (P<0.05), plant stem diameter was positively correlated with the latitude, and the root dry weight was significantly positively correlated with the annual average sunshine. Euclidean distance cluster analysis showed that the B.chinense seeds from 10 locations were clustered into four categories and there were difference between catedories.

Key words: Bupleurum chinense DC., seed, plant, growth characteristics, geographical ecological factor