Browsing Theses and Dissertations by Title
Now showing items 37-56 of 127
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Effects of irrigation water type and nitrogen on growth, yield and nutrient partitioning of tomato. (Lycopersicon lycopersicum (L.) Karstern
(Botswana University of Agriculture & Natural Resources, 2014-09)A field experiment was conducted at the Botswana College of Agriculture (BCA) to evaluate the effects of irrigation water type and nitrogen on growth, yield and nutrient partitioning of tomato (Lycopersicon lycopersicum ... -
Effects of land cover land use change on soil organic carbon stocks in Greater Gaborone, Botswana.
(Botswana University of Agriculture & Natural Resources, 2022-12-17)Changes in Land cover land use (LCLU) have long been considered to be among the many factors responsible for the physical and chemical degradation of the soil. Soils are potentially a viable sink for atmospheric carbon and ... -
Effects of Land-use / Land Cover Changes on Flow and Sedimentation from the Metsimotlhabe River Catchment Using Soil and Water Assessment Tool (SWAT) Model
(Botswana University of Agriculture and Natural Resources, 2021-08)This study was undertaken to assess the effects of Metsimotlhabe River catchment Land-use / Land Cover dynamics (2006 and 2018) on the inflow and sedimentation into the Bokaa Reservoir using the SWAT model implemented as ... -
Effects of lucerne (medicago sativa) hay stems as a protein source in sorghum stover basal diet on the performance of Tswana lambs
(Botswana University of Agriculture & Natural Resources, 2021-07)The current study was designed to assess the performance, development of the reproductive and carcass parameters of Tswana lambs fed lucerne hay stems as a protein source in sorghum stover basal diet. This was achieved ... -
Effects of nitrogen and phosphorus fertilizers on growth, yield, and yield components of sorghum (Sorghum bicolor (L) Moench)
(Botswana University of Agriculture & Natural Resources, 2013-06)Greenhouse and Held experiments were conducted during the 2009 and 2010 growing seasons at Botswana College of Agriculture to evaluate the effect of different levels of nitrogen (N) and phosphorus (P) ... -
Effects of nitrogen and phosphorus nutrition on growth, yield, yield components and fruit quality of watermelon (Citrullus lanatus Thumb)
(Botswana University of Agriculture & Natural Resources, 2015-11)An experiment was conducted in the Botswana College of Agriculture, Notwane farm in Gaborone North to evaluate the effect of nitrogen and phosphorus on growth, yield, yield components and quality of watermelon (Citrullus ... -
Effects of nitrogen and phosphorus on growth, development, yield, and oil content of safflower (Carthamus tinctorius L.)
(Botswana University of Agriculture & Natural Resources, 2017-07)Safflower is a multipurpose crop grown for the orange-red dye that is obtained from its petals, medicinal properties, feed value and especially for its high quality oil (Dajue and Mondel. 1996; Dwivedi, 2005; Sirel and ... -
Effects of nutritionally-mediated increases in the plasma ammonia concentrations of donor ewes on the in vivo and subsequent in vitro development and metabolism of their embryos
(University of Aberdeen, 1994)A review of the literature indicated that high levels of protein in ruminant diets can lower fertility. Ammonia from proteins that are rapidly degraded by the rumen microbes has been suggested as the factor that may affect ... -
Effects of plant population on growth, development and oil yield of safflower (Carthamus tinctorious L.)
(Botswana University of Agriculture & Natural Resources, 2012-09)Two field trials were done in the winter of 2010 and summer of 2010/2011 to evaluate the effects of plant density. on the growth, development and yield of safflower. The results showed that plant density and season of ... -
Effects of planting date and genotypes on growth, development, yield, and oil content of safflower under irrigated conditions in semi-arid south-east Botswana
(Botswana University of Agriculture & Natural Resources, 2023-09-06)Safflower (Carthamus tinctorius L.) is an annual oil plant belonging to the Compositae or Asteracea family that can be grown as a summer or winter crop. One of the most important criteria for maximising safflower production ... -
Effects of safflower (Carthamus tinctorius L.) genotypes on growth, development, yield and yield components, and oil content and yield
(Botswana University of Agriculture & Natural Resources, 2018-09)Safflower (CarthamustinctoriusL.) is a multipurpose oil seed crop that is drought, heat, cold and saline tolerant, but minor and neglected despite its many uses. However, recently there is renewed interest in safflower ... -
Effects of site preparation for afforestation on soil properties and greenhouse gas emission
(The University of Edinburgh, 2009)Forest plantations in the UK are often established on seasonally waterlogged peaty gley soils which often require site preparation (drainage and mounding) to lower the water table and prepare planting positions. Substantial ... -
Effects of storage temperature and hot water treatment duration on chilling injury and quality of mango (Mangifera indica L.)
(Botswana University of Agriculture & Natural Resources, 2016-08)Low temperature storage is the most effective method of extending postharvest life and marketing period, and maintain fruit quality because it retards physiological processes such as respiration, ethylene production, ... -
Effects of storage temperature on postharvest quality of wild plum (Ximenia americana L.)
(Botswana University of Agriculture & Natural Resources, 2018-06)Wild plum (Ximenia americana L.) is a tropical crop widespread throughout the tropics of Africa, India and South East Asia to Australia, New Zealand, Pacific Islands, West Indies, Central and South America. Despite the ... -
Effects of urea or lime stone ammonium nitrate (LAN) on biomass yield and chemical composition of silage from pure stand and intercropped lablab, Tswana cowpea, millet and buffel grass in Botswana
(Botswana University of Agriculture & Natural Resources, 2018-12)This study investigated if Urea or LAN had any effect on biomass yield and chemical composition (Macro and micro mineral) of silage made from fodder crops of Lablab (Lablab purpureas), Tswana cowpea (Vigna unguiailata), ... -
Effects of watering frequency and soil types on growth and yield of kgengwe (Citrullus lanatus var. Citroides)
(Botswana University of Agriculture & Natural Resources, 2019-04)There is now a growing realization by government and other role players in Botswana of the importance of indigenous plants as alternative food crops to enhance food security and biodiversity. Experimental research was ... -
Enhancing the quality of performance assessment in Agriculture in Botswana schools
(University of Pretoria, 2011-03-31)The quality of education in Botswana is not yet up to standard as there has been emphasis on attainment of Universal Basic Education. Quality in education encompasses a number of factors such as the development of the ... -
Epidemiological studies on bovine fasciolosis in Botswana
(Murdoch University, 2014)Fasciolosis, commonly known as liver fluke disease, is a disease of the liver of domestic livestock, principally ruminants, caused by pathogenic trematodes of the genus Fasciola, which comprises two species, F. hepatica ... -
Evaluation of the diversity and pest status of fruit flies on marula, Sclerocarya Birrea in Gabane, Mochudi and Rasesa
(Botswana University of Agriculture & Natural Resources, 2011-07)Manila (Sclerocarya birrea) is one of the most useful indigenous trees in Africa. The fruits of marula are used to produce useful products such as juice, jam and beer. The seed kernels are very rich in proteins and can be ... -
Evaluation of bacillus thuringiensis (var. kurstaki), spinosad and cypermethrin for the control of diamondback moth (plutella xylostella l.) on cabbage.
(Botswana University of Agriculture & Natural Resources, 2011-07)An experiment was conducted al the Botswana College of Agriculture (BCA), Gaborone, Botswana (24° 55’S, 25" 95’E) at an altitude of 998m above sea level to evaluate the effectiveness of Bacillus thuringiensis(Bt), ...