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河南省许昌县作物品种资源研究所的科研人员利用西德和日本的萝卜良种进行杂交,经3年时间培育出一种巨型白萝卜优良品种——“德日2号”。最近通过28个省、市区域试验,普遍反映良好。这个品种单个重4—10公斤,高2.5尺左右,在一般的栽培管理条件下,亩产高达1.5～2万公斤。在各地表现适应性广,抗病力强,耐寒性好,肉质细嫩,皮薄味正,含维生素高于一般萝卜品种,市场销售好,深受欢迎。
Xuchang County, Henan Province, Institute of Crop Germplasm Resources and Utilization of Research Institute of West Germany and Japan using varieties of radish hybrids, after three years to breed a giant white radish varieties - "Germany and Japan on the 2nd. Recently passed the 28 provincial and municipal regional trials, generally reflect the good. This species a single weight 4-10 kg, 2.5 feet high, in general cultivation and management conditions, up to 1.5 to 2 kilograms per mu. In all parts of the performance of broad adaptability, disease resistance, cold tolerance, delicate meat, thin flavor is positive, higher than the average vitamin content of radish, the market is good, very popular.