银杏品种经济性状分析及其与土壤相关性研究. Ⅰ不同银杏品种经济性状的比较

用单因素多重比较DDCBJ模型对大梅核与大马铃在石灰岩母质上，大梅核与细梅核在花岗岩母质上，大佛指银杏、中椭圆子及中长子银杏在板页岩上的经济性状作了差异显著性检验，检验结果是：①各品种（类型）间其含水率、Vc含量、蛋白质含量、还原糖含量、总糖含量、淀粉含量、单果重等经济性状差异未达到显著水平．②中椭圆子和中长子银杏在板页岩上出核率达到了差异显著性水平．③同一品种群的不同品种（类型）间或不同品种群不同水平下的各品种（类型）间其单核重非常接近或已达到差异显著性水平。

Ginkgo Varietal Difference in Economic Characters as Related to Soil Types: I.Comparison of Economic Characters as Shown in Different Varieties

Compared were the nut economic characters of the following ginkgo varieties: dameihai and damaling growing in limestone soils, dameihai and ximeihai growing in granitic soils, and dafoshou, zhongtuoyuanzi and zhongchongzi growing in slate and shale soils, using single -- variable multiple comparison model DDCBJ. Results showed: (1) no significant difference was found between the varieties in the content of moisture, vitamin C,protein, reducing sugar,total sugar, starch, and per--nut weight ; (2) there was significant difference in nut rate between zhongtuoyuanzi and zhongchongzi; (3) the per--nut weight of the various cultivars was very much close to one another in the same cultivar group ; and (4)there was significant difference in per--nut weight between different cultivar groups with different management intensities.