以采自安徽(AH)、山东(SD)及江苏(JS)的 6 个青檀(Pteroceltis tatarinowii Maxim .)种源种子为材料, 测定各种源种子营养成分含量及种子活力。 6 个种源种子的蛋白质、可溶性糖、淀粉及粗脂肪含量存在较大差异。 在种子品质上, 6 个种源的种子千粒重、浸泡液电导率及简化种子活力指数(SVIS)也存在显著差异。 种子中各营养成分含量的高低与 SV IS 的大小密切相关, 复相关系
数达 0.8223 , 以蛋白质含量对 SV IS 的影响最大, 淀粉和粗脂肪含量影响次之, 可溶性糖含量影响最小。 采用模糊聚类分析法, 以种子千粒重、电导率及 SV IS 为评价指标, 可将 6 个种源的种子品质划分为三大类:第一类包括 SD1 、AH1和 JS1 3 个种源, 种子品质较好;第二类仅为 AH3种源, 品质中等;第三类包括 AH2和 SD2 2 个种源, 品质较差。
 

Based on the seeds of Pteroceltis tatarinowii Maxim .collected from Anhui , Shandong and Jiangsu Provinces , the differences of seed nutrient ingredient contents and the seed vigour were compared among the six provenances .The results indicated that there were a great difference in protein , soluble sugar, starch and crude fat contents among them. Significant disparity in weight per 1 000 seeds , electric conductivity and seed vigour index also existed .Regression analy sis showed that the contents of nutrient ing redient in seeds had a good relationship with the seed vigour index (R =0 .8223)and the effect of the protein content on seed vigour was the biggest , the starch and crude fat was the second and the soluble sugar was the least. According to the weig ht per 1 000 seeds ,electric conductivity and seed vigour index , six provenances of P .tatarinowii could be divided into three g roups by using Fuzzy Cluster Method .The first group including SD1 , AH 1 and JS1 has a high seed vigour, the second group (only AH3 provenance)
possess a middle and the third group including AH2 and SD2 own a low seed vigour.