The Morphology Diversity of Datura stramonium L.from Different Populations
Based on field investigation and experiments,the morphological variations among different populations of Darura stramonium L. in China were studied. Results showed that although planted in the same fields,the phenological phases,stress resistance and seed surface ornamentations of D. stramonium L. differed among different populations. There were always significant morphology variations of leaves,stems and flowers in different populations. Variation coefficients were ranged from 4.64%to 62.24%. And vegetative organs showed more genetic variations than reproductive organs. Nevertheless,some of the reproductive organs also exhibited significant variations. The cluster analysis of morphology indices showed that 10 populations of D. stramonium L. could be divided into 3 clusters: Shuiyun center,Yangling and Tieling,Liaoning; Baoding,Hebei,Weinan,Shaanxi and Lintong,Shaanxi; Dazhaixiang,Yangling,Shangluo,Shaanxi,Laiyang,Shandong,Yulin,Shaanxi and Fengxian,Shaanxi.