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品种来源:河南省商丘地区农科所1978年以“北京密瓜”为母本、“栗子香”为父本,通过有性杂交选育而成。1985年经河南省农作物品种审定委员会审定通过并命名“豫薯一号”。1988年获河南省科学进步二等奖。特征特性:顶叶浅绿色、浅缺刻,叶色绿色、叶形浅裂单缺刻。叶片大(12cm×13.5cm),叶脉、脉基及柄基均为紫色,叶柄色绿带紫,叶柄长13.5cm 左右。茎色绿带紫,茎粗0.55cm,夏薯最长蔓179cm 左右,节间长4.3cm,茎端茸毛少,基部分枝15—18个。薯形下膨纺锤形,皮色红、肉色淡黄带红晕,薯皮不光滑,薯梗色浅黄带红。薯块萌芽性籽,幼苗生长较慢、茎叶生长势中等,株型匍匐。叶片功能期长,后期叶色浓绿至收获期不衰。结薯较早而集中,薯位较浅,上薯率高达80%,耐肥、耐瘠、较耐旱涝。高抗根腐病、抗茎线虫
Varieties of origin: Shangqiu Prefecture Agricultural Science Institute in 1978 to “Beijing melon ” as the female parent, “chestnut fragrance ” as the male parent, through sexual cross breeding. In 1985 by the Henan Provincial Crop Variety Approval Committee approved and named “Yushu one ”. In 1988 won the second prize of scientific progress in Henan Province. Features: parietal light green, shallow nick, green leaves, leaf-shaped single-nicked lobed. Leaf large (12cm × 13.5cm), veins, veins and base are purple, petiole color green with purple, petiole length of 13.5cm or so. Stem green with purple, stem diameter 0.55cm, summer longest vine about 179cm, internode length 4.3cm, stem hair less, the base branch 15-18. Fibrous under the inflated spindle, skin color red, flesh-colored yellow belt flush, potato skin is not smooth, potato streak light yellow red. Potato seed germination seeds, seedlings grow more slowly, stem and leaf growth potential, plant prostrate. Leaf period, late leaf color green to harvest is not bad. Knot earlier and concentrated tubers, potato shallow, potato up to 80%, resistant to fertility, barren, more resistant to drought and flood. High resistance to root rot, anti-stem nematodes