宁紫薯1号的选育及高产施肥技术研究  

Breeding of sweet potato variety Ningzishu 1 and study on its high yield fertilization practice

作　　者：谢一芝[1] 郭小丁[1] 贾赵东[1] 尹晴红[1] 

机构地区：[1]江苏省农业科学院粮食作物研究所,南京210014

出　　处：《上海农业学报》2008年第4期115-117,共3页Acta Agriculturae Shanghai

基　　金：国家支撑计划项目(2006BAD01A06-2);国家公益性行业科研专项项目(nyhyzx07-012-11);江苏省高技术项目(BG2006309)资助

摘　　要：宁紫薯1号在2003-2005年国家和江苏省甘薯品种区域试验和生产试验中,平均鲜薯产量为1901.8 kg/667 m2,比对照品种平均增产2.6%,薯块平均干物率27.5%,薯块花青素含量22.41 mg/100 g,总可溶性糖含量5.6%,抗茎线虫病和根腐病。研究表明:生物产量随施肥量的增加而提高,商品薯产量以施肥量50 kg/667 m2复合肥+10 kg/667 m2钾肥时最高。A new purple sweet potato variety Ningzishu 1 was bred by means of grafting and crossing. Its average fresh root yield was 1 901.8 kg/667 m2,increasing by 2.6% over CK in the national and Jiangsu regional trials during 2003- 2005. The average dry matter rate, anthocyanin content and total soluble sugar of its roots were respectively 27.5% ,22.41 mg/100 g and 5.6%. This variety was re- sistant to stem nematode and root rot. The study on its high - yield fertilization practice showed that the biological yield increased with the fertilizer application rate increasing,and the highest marketable root yield could be achieved when the amounts of applied compound fertilizer and potassium fertilizer were respectively 50 kg/667 m2 and 10 kg/667 m2. Key words. Purple sweet potato; High yield; Fertilization practice

关 键 词：紫心甘薯 高产 施肥技术 

分 类 号：S531.04[农业科学—作物学]