Year: 2015
Type: dissertation
Abstract: The objectives of this research were to assess the yield response of orange fleshed \nsweet potato to water supply at different frequencies; to evaluate how beta carotene \ncontent and nutritional water productivity of orange fleshed sweet potato will be \naffected by water supply at different frequencies and; to calibrate and validate the \nSoil Water Balance (SWB) model for orange fleshed sweet potato. \nA field trial was established in December 2011 at the University of Pretoria \nexperimental Farm (Hatfield, Gauteng Province), under a rainshelter. The trial \ncomprised of four irrigation regimes namely, Ttw (irrigated twice a week), Tow \n(irrigated once a week), Totw (irrigated once in two weeks) and Tdryl (rain and \nsupplemental irrigation dependent). Tdryl, an independent field block, was established \noutside the rain shelter. Growth and yield analyses were carried out during the \ngrowing season. Irrigation was applied to field capacity (FC), depending on water \nrequired by each treatment, as determined with a neutron probe three times in a \nweek.
Author: Steve Masango
Language: English
Subfield: Soil Science
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W2206648833