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豫薯13号是河南省农科院粮食作物研究所选育的甘薯新品种,于19998年4月通过河南省农作物品种审定委员会审定命名。其突出优点是产量高、抗病抗旱性强、淀粉含量多且综台性状表现优良。豫薯13号先后经过了1992年至1997年间多次选择试验,对其经济性状及特征特性进行鉴定。产量表现为全省6年41点次夏薯平均结果,鲜薯亩产2157.7公斤,薯干亩产653.8公斤,淀粉亩产429.1公斤,烘干率为30.1%,淀粉含量可达21.8%。春薯亩产3000多公斤,亩产淀粉达600公斤以上。经江苏省徐州甘薯研究中心测定,豫薯13号高抗根腐病,抗茎线虫病,但不抗黑斑病;抗旱性强,薯苗经连续干旱法测定其存活率比对照种徐薯18、选77-6高26.7个百分点。豫薯13号主要特征特性是顶叶绿色,叶脉绿带紫色,
Henan Yushu No. 13 is a new sweet potato variety selected by Institute of Food Crops, Henan Academy of Agricultural Sciences. It was named after the approval of Henan Crop Variety Approval Committee in April 1999. Its outstanding advantages are high yield, disease resistance and drought resistance, starch content and comprehensive sets of traits performed well. Yushu No. 13 has been repeatedly selected between 1992 to 1997 experiments to characterize their economic traits and identification. The yield showed the average summer sweet potato yield of 41 years at 6 years. The average output of fresh sweet potato was 2157.7 kg per mu for fresh potato, 653.8 kg per mu for potato and 429.1 kg per mu for starch. The drying rate was 30.1% and the starch content was 21.8%. Spring sweet potato more than 3000 kilograms per mu of starch up to 600 kilograms. Yushu No. 13 was highly resistant to root rot and anti-stem nematode disease but not to black spot disease. Its resistance to drought was stronger than that of the control cultivar Xushu 18, Select 77-6 high 26.7 percentage points. Yushu No. 13 main features are the top green leaves, green veins purple,