Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53370#.VMBlrCzQrzE Author(s)    Hua Ji 1,2* , Haixin Zhang 3 , Hongtao Li 1,2 , Yunchao Li 1,2   Affiliation(s) 1 Institute of Genetics and Physiology, Hebei Academy of Agricultural and Forestry Science, Shijiazhuang, China . 2 Laboratory of Quality & Safety Risk Assessment for Agro-Products (Shijiazhuang), Ministry of Agriculture, Shijiazhuang, China . 3 Laboratory of Quality & Safety Risk Assessment for Agro-Products (Shijiazhuang), Ministry of Agriculture, Shijiazhuang, China . ABSTRACT In this study, we selected four different color fleshed sweet potatoes, purple- (Jizi 01), red- (Xinong 431), yellow- (Beijing 553) and white- (Shangshu 19) fleshed cultivars as test materials, analyzed nutrient composition, dietary fiber content, anthocyanins quantification, and total phenolics content, and also measured their total antioxidant activit...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50787#.VE8VhVfHRK0 Author(s)    I. Chagonda , R. F. Mapfeka , T. Chitata Affiliation(s) Department of Agronomy, Faculty of Natural Resources Management and Agriculture, Midlands State University, Gweru, Zimbabwe . ABSTRACT In Zimbabwe sweet potato ( Ipomoea batatas L.) production is practiced under different tillage systems with varying vine orientations, which contribute to variable yields. Limited research on yield loss due to these different practices is available despite that the majority of farmers are growing sweet potatoes to sustain their livelihoods. A field study was carried out at Midlands State University i...