目前我国栽培的葡萄品种过于单一,成熟期多集中于8月下旬,而且不耐贮藏,过了这段时间,市场上就很少有葡萄供应了。针对此情况,我们葡萄研究所经过多年探索,采取多品种搭配,将每年葡萄成熟期调整为:极早熟、早熟、中熟、晚熟、特晚熟五个系,延长了市场供应时间,提高了经济 At present, the varieties of cultivated grape in our country are too single. The mature period is mostly concentrated in late August and impatient for storage. After this period, there is very little supply of grapes on the market. In view of this situation, after years of exploration, we have adjusted the maturity of grapes to: extremely precocious, early ripening, middle maturing, late maturing and late maturing five lines, prolonging the market supply time and raising the economy