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介绍了对甘薯新品种“渝苏303”的生产力和主要经济性状的鉴定结果在1994～1995年四川省甘薯新品种区域试验中，“渝苏303”鲜薯产量28263．0kg／hm2，比对照品种“南薯88”减产2．3％，藤叶产量21396．0kg／hm2，薯干产量8649．0kg／hm2，生物鲜产量49648．5kg／hm2，生物干产量11205．0kg／hm2和淀粉产量5430．8kg／hm2，比“南薯88”分别增产19．3％，4．6％，5．1％，7．0％和20．8％．它在重庆、四川的生产上产量表现更好。该品种萌芽性较好，结薯较早，大中薯率85％以上，薯块烘干率30．75％，出粉率19．32％，氮基酸含量0．844％，高抗茎线虫病，抗黑斑病和根腐病．贮藏性好1998年“渝苏303”已推广1×104hm2以上。
The results of the appraisal on the productivity and main economic traits of a new sweet potato variety “Yusu 303” were introduced. In the regional experiment of new sweet potato varieties in Sichuan Province from 1994 to 1995, the yield of fresh yuzhu 303 was 28263.0kg / hm2, The yield of variety “South potato 88” was reduced by 2.3%, the yield of vine leaves was 21396.0kg / hm2, the output of dried potato was 8649.0kg / hm2, the biological fresh output was 49648.5kg / hm2, the biomass dry yield was 11205.0kg / hm2 and the starch yield 5430.8kg / hm2, which increased by 19.3%, 4.6%, 5.1%, 7.0% and 20.8% respectively compared with “South Potato 88”. It produces better in production in Chongqing and Sichuan. The germination of the varieties is better, early tuberization, large and medium-sized potato rate of more than 85%, tuber cake drying rate of 30.75%, the rate of 19.32% powder, nitrogen-based acid content of 0.844% Nematode, Black spot and root rot. Good storage 1998 “Yu-Su-303” has been promoting more than 1 × 104hm2.