天津市从1974年引进大粒型品种巨峰葡萄,由于果粒特大且较抗病,经济效益高,深受生产者的重视和消费者的欢迎。为此,我所先后引进了巨峰、大宝、龙宝、红瑞宝、红富士、先锋、巨鲸、红密、高尾、大阪、黑奥林、奥林比亚、伊豆锦及特大粒型的乍娜等品种,进行了试栽观察。现介绍黑奥林、红富士、乍娜三个品种四年来的观察结果,以供试栽选用。1.乍娜(Zana)欧亚种。中国果树所1975年从阿尔巴尼亚引入,我所1976年、1982 Since 1974, Tianjin introduced large-grained varieties of Kyoho grapes, due to large fruit particles and more disease-resistant, high economic efficiency, by the producers and consumers are welcome. To this end, we have introduced Kyoho, Daiwa, Longbao, Hongruibao, Red Fuji, Pioneer, whale, Hongmi, Gaowei, Osaka, Black Olympus, Olympia, Izu Kam and extra-large grain Zha na and other varieties, conducted a trial planting observation. Now introduced black Olympus, Red Fuji, Zha Na three varieties of observations over the past four years for the test planted selection. 1. Zana (Eurasian species). Chinese fruit trees were introduced from Albania in 1975, our year 1976, 1982