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甘薯新品种冀薯4号,原名冀18—1。是以农家种鸡蛋黄为母本,美国宝石为父本杂交选育而成的适宜食用和食品加工的新品种。早熟、生育期短、适宜夏播。一般夏薯比徐薯18增产10％左右,干物质率高0.5％,富含胡萝卜素及维生素C,熟食干、面、甜有香味。结薯早、整齐、集中,薯形光滑美观,较抗黑斑病,耐贮藏,有较高的经济价值。目前河北推广面积达20万亩以上,河南、安徽、辽宁、浙江、福建等省部分县市已引种、示范和推广。一、茎叶、薯块生长发育动态冀薯4号在中等以上地块种植,5月5日插苗,10月21日收获,全生育期可分为三个阶段:从插苗到80天为前期,80 110天为中期,110天到收获为
The new sweet potato variety Ishu 4, formerly known as Hebei 18-1. Is based on the farm egg yolk as female parent, the United States as the parent of gem hybrid breeding bred suitable for food and food processing of new varieties. Early maturity, short growth period, suitable for summer sowing. Generally, sweet potato yields about 10% more than that of Xushu 18, with a high dry matter content of 0.5%. It is rich in carotene and vitamin C, and has dry, noodles and sweet flavors. Early tuber tuber, neat, concentrated, potato smooth and beautiful, more resistant to black spot disease, storage, have a higher economic value. At present, Hebei has an area of over 200,000 mu. Some counties and cities in Henan, Anhui, Liaoning, Zhejiang and Fujian provinces have introduced, demonstrated and popularized them. First, stems and leaves, tubers growth and development dynamics Ishizu 4 in medium above plots planted May 5 inserted seedlings, October 21 harvest, the whole growth period can be divided into three stages: from the seedlings to 80 days For the early period, 80 110 days for the medium-term, 110 days to harvest for