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近几年国内先后从日本、美国引进大果型优良品种,在生产上种植3～5年后,果实变小、畸型,产量明显下降,其原因就是病毒病造成的,目前无药剂可以防治。针对这一生产难题,本研究室经4年努力,应用生物技术脱病毒培养,成功地获得脱毒彻底的“硕丰”、“宝交早生”、“早红光”、“春选”等6个高产大果型优良品种的无病毒苗,经全国20个省市示范生产,去病毒苗生长势旺,抗性强,果实待大(60～100g),比鸡蛋还大,均匀整齐,色泽鲜红,商品价值高,可专供高级宾馆、宴会。同时
In recent years, China has introduced large fruit type varieties from Japan and the United States. After planting for 3 to 5 years in production, the fruit becomes smaller, malformed, and the yield is obviously reduced. The reason is that the virus disease causes no medicaments to be prevented and controlled at present. In response to this production challenge, after four years of hard work, the research laboratory has applied biotechnology to virus-free culture and successfully obtained “Shuofeng”, “Baojiao Zaisheng”, “Zu Hongguang” and “Spring Selection” Six high-yielding large fruit-type varieties of virus-free seedlings, demonstrative production in 20 provinces and cities nationwide, to the vigorous growth of the virus vaccine, strong resistance, the fruit to be large (60 ~ 100g), larger than the egg, uniform, Bright red color, high value of goods, can be designed for high-level hotels, banquets. Simultaneously