甘薯新品种“渝薯34”的生产力及其主要经济性状表现

The expressions of Productivity and Essential Economical Characters of the New Variety“Yushu 34”in Sweet Potato

本文介绍了对甘薯新品种“渝薯34”的生产力和主要经济性状的鉴定结果。在3年重庆市甘薯新品种区域试验中,“渝薯34”平均鲜薯亩产2059.8kg、平均薯干亩产588.0kg,分别比对照品种“徐薯18”增产27.45%和15.34%;平均藤叶亩产1566.3kg,比“徐薯18”减产28.26%。该品种薯块烘干率28.50%,含淀粉19.27%、Vc10.70mg/100g、β—胡萝卜素19.88ug/100g;以干基计,含粗蛋白3.70%、氨基酸3.23%、可溶性糖11.10%。“渝薯34”萌芽性、耐贮性好,结薯早,净同化率高,抗旱性、抗黑斑病性较好,1991年推广面积已达40万亩。

This paper gives an introduction of the results of appraising the Productivity and essential economi-cal characters of the new variety “Yushu 34” in sweet potato.In the regional test of Chongqing 1986—1988,the yield of fresh tuberous root and dry matter weight of “Yushu 34” averaged 2059.8Kg/mu and588.0Kg/mu,which increased 27.45% and 15.34% in comparison with “Xushu 18” respectively.but,Its mean yield of fresh vines was 1566.3Kg/mu,to decrease 28.26% than that of “Xushu 18”.According to analysis,the centent of dry matter is 28.5% and starch is 19.27% Vitamin C 10.70mg/100g and β-earotene 19.88Ug/100g in the fresh tuberous root of “Yushu 34” and the content ofprotein is 3.70%,amino acid 3.23% and soluble sugar 11.10% in the dried tuberous root,Throughthe appraisal,the main economical characters of “Yushu 34” are very good,it has a good bud burstingand storage property,and early maturity,high net assimilation,as well as drought resistance and blackrot resistance.At present,the planting area of “Yushu 34” has been popularized over 400000 mu.