Variation in Responses of Bambara Groundnut (Vigna Subterranea (L) Verdc.) Landraces to Sowing Date, Heat, Photoperiod and Drought Stresses

A thesis submitted to the Department of Crop and Soil Sciences, Faculty of Agriculture, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana in Partial Fulfillment of the Requirement for the Degree of DOCTOR OF PHILOSOPHY in CROP PHYSIOLOGY