甘薯主要经济性状与气象因子的相关性分析  

Study on Correlation Analysis of Main Economic Characters of Sweetpotato and Meteorological Factors

作　　者：后猛[1] 王欣[1] 张允刚[1] 唐维[1] 马代夫[1] 李强[1] 

机构地区：[1]中国农业科学院甘薯研究所,农业部甘薯生物学与遗传育种重点实验室,江苏徐州甘薯研究中心,江苏徐州221131

出　　处：《华北农学报》2013年第S1期243-247,共5页Acta Agriculturae Boreali-Sinica

基　　金：江苏省农业科技自主创新资金项目(CX(11)1027);江苏省科技支撑计划项目(BE2011301);现代农业产业技术体系建设专项资金(CARS-11);国家高技术研究发展计划"863计划"项目(2012AA101204)

摘　　要：选择7个不同肉色的甘薯品种,在不同生育期测定其最长蔓长、分枝数、结薯数、块根干率、块根鲜质量、薯干淀粉、还原性糖、可溶性糖和粗蛋白含量,以研究不同肉色甘薯块根主要经济性状与气象因子的相关性。结果表明,参试甘薯品种的产量性状与气象因子的相关性较高;白肉品种(徐薯28和徐薯18)和紫肉品种(徐紫薯3号)的品质性状与气候因子的相关性较高,黄肉品种(徐薯23和徐0314)和桔红肉品种(徐3228和徐5919)的品质性状与气象因子的相关性较低;多数经济性状日增长量与主要气象因子日增长量关系不大,伴随着日平均气温的增加,单株分枝数增长速度提高,随着日照时数增加,块根可溶性糖积累速度加快,而当降水量增多时,块根还原糖积累速度放缓。Correlation analysis between main economic characters of sweetpotato and meteorological factors were studied in present paper .Several kinds of economic traits in 7 different color-fleshed sweetpotato varieties at 50,64,78,92,106,120,134 d after transplanting were investigated ,and these traits included number of branches , longest vine length,number of storage roots,storage root fresh weight,dry matter content,starch content,reducing sugar content ,soluble sugar content ,crude protein content .The results showed that the yield-related traits of tested sweetpotato varieties had higher correlation with meteorological factors .The quality-related traits of white-fleshed sweetpotato varieties(Xushu 28 and Xushu 18)and purple-fleshed varieties(Xuzishu 3)had higher correlation with meteorological factors ,while that of yellow-fleshed sweetpotato varieties ( Xushu 23 and Xu 0314 ) and orange-fleshed sweetpotato varieties ( Xu 3228 and Xu 5919 ) had lower correlation with meteorological factors .For most of tested va-rieties,the relationship between daily growth rates of the economic traits and main meteorological factors was not ev-ident .

关 键 词：甘薯 经济性状 气象因子 相关性 

分 类 号：S531[农业科学—作物学]