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１９９０～１９９９年，对育成的左山一、左红一、左山二、双庆、双优、双丰和双红 ７个山葡萄品种试验观察表明：山葡萄有较高的萌芽率和结果枝率。产量高的品种是双优和双红，最低的是双庆。果穗松散小青粒多的是左红一和左山一。穗、粒大的是左红一和双优，最小的是双庆。浆果含糖高、总酸低的是左红一和左山二。浆果出汁率高的是双优、左山二和左山一。酒质最佳的是左山一、双红、双优和左红一。高抗霜霉病的是左山一和双红，最不抗病的是双优和双丰。硬枝扦插成苗率高的是左红一、左山一。双优不易生根成苗。
From 1990 to 1999, the experiment of seven mountain grape cultivars, Zushan I, Zuohong I, Zuo Shan II, Shuangqing, Shuangyou, Shuangfeng and Shuanghong showed that there were higher germination rate and fruiting rate . High yield varieties are Shuangyou and double red, the lowest is double celebration. Sparse ears of small green grains are left one red and left one mountain. Spike, grain is a big red left and double excellent, the smallest is double celebration. High berry sugar, total acid low left red and left two. Berry high juice rate is Shuangyou, Zuo Shan II and Zuo Shan one. The best wine is left one, double red, double excellent and left red one. High resistance to downy mildew is a left and a pair of red, the most non-resistance Shuangyou and Shuangfeng. Hardwood cuttings into a high rate of red left one, left one. Shuangyou not easy to take root.