目前,世界各国对葡萄品种的要求越来越高,必须具有抗寒、抗病和含糖量高的优良特性.然而仅仅依靠现有的栽培品种资源,很难培育出令人满意的新品种来。科技人员只能利用栽培品种与野生葡萄杂交来获得新品种。但现有的山葡萄多为雌雄异株,具有两性花的植株很少,自花不能授粉或者授粉率很低,效果不佳。于是我们就大量引种山葡萄,从中发现了两性花的植株。利用两性花山葡萄与7个栽培品种杂交出来的新品种,平均座果率为58.94％,高于玫瑰香39.22％。其果穗圆柱形带副 At present, all countries in the world have higher and higher demands on grape varieties and must have the excellent characteristics of cold resistance, disease resistance and high sugar content, however, relying on the existing resources of cultivated varieties, it is difficult to cultivate satisfactory new varieties Come. Scientists can only make use of hybrids of cultivars and wild grapes to obtain new varieties. However, most of the existing mountain grapes are dioecious, with few plants with bisexual flowers, pollination or pollination rate is very low, the effect is not good. So we introduced a large number of mountain grapes, which found the plants of both sexes. The results showed that the average fruit-setting rate of new hybrids, which were obtained from the hybrids of Bifidum grape and seven cultivars, was 58.94%, higher than 39.22% of the rose. Its ear cylindrical cylindrical belt