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Now showing items 253-272 of 680
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Effects of pre-treatments methods on the germination of pod mahogany (afzelia quanzensis)and mukusi(baikiaea plurijuga)seeds
(International Journal of Innovative Research in Science, Engineering and Technology, 2014-01)Seed pre-treatments (mechanical, concentrated sulphuric acid for 3, 6, 9 and 12 minutes, hot water treatments for 3, 6, 9 and 12 minutes) were carried out to overcome seed dormancy of Afzelia quanzensis and Baikiaea plurijuga ... -
Effects of real exchange rate and gross domestic product on yam exports in Ghana
(Botswana University of Agriculture & Natural Resources, 2011)The objective of this paper was to evaluate the responsiveness of Ghana’s fresh yam export supply to real exchange rate and national income (GDP) with the use of time scries data from 1990 to 2004. Data collected from ... -
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 methane fluxes at Harwood Forest, NE England
(Springer, 2009-05-06)A field experiment was established at Harwood Forest to investigate the effects of three forest management practises (drainage, mounding and fertilisation) on methane (CH4) emissions and environmental variables (soil ... -
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 soil type on the emergence, flowering, nutrient uptake and yield components of bambara groundnut (Vigna subterranea (L.) Verde) landraces in Botswana
(Botswana University of Agriculture & Natural Resources, 2008)On-station experiments were conducted at the Regional Agricultural Research Station-Impala in Francistown. Botswana, during 2003/04, 2004/05 and 2005/06 seasons to determine the effects of sandy loam and sandy clay ... -
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 Storage Time on Ostrich Egg Quality.
(Scienceline Publication, 2023-03-25)Egg quality is considered as both internal egg quality that focuses on the egg content and external egg quality that focuses on the eggshell. This study investigated the effect of storage time on ostrich egg quality. A ... -
Effects of substituting rice flour as fillers for wheat flour at varying levels in beef sausage production.
(Botswana University of Agriculture and Natural resources, 2012)To derive optimum benefits from agricultural products is to add value to these products. In the meat industry, sausage making is a well known process of adding value to what could otherwise be considered low quality meats ... -
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), ... -
The effects of vaccination and treatment on the spread of HIV/AIDS
(World Scientific Publishing, 2004)This study investigates the effects of vaccination and treatment on the spread of HIV/AIDS. The objectives are (i) to derive conditions for the success of vaccination and treatment programs and (ii) to derive threshold ... -
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 ... -
Effects of watermelon pulp fortification on maize mageu physicochemical and sensory acceptability.
(Heliyon, 2021-05-25)Mageu is a non-alcoholic fermented gruel processed from cereal grains, mostly maize and is widely consumed in the Southern African region. The refined maize meal used for mageu processing is limited in dietary fiber, ... -
Effects of witchtweed (Striga species) control methods on growth and yield of maize (Zea mays L.) in Swaziland
(Botswana University of Agriculture & Natural Resources, 2008)Striga hermonthica and S. asiatica arc parasitic weeds that reduce yield in cereal crops. Information is scarce on the response of Striga to weed control methods in Swaziland. Therefore, a held experiment was conducted ... -
The Efficacy of Micronutrient-Fortified Sorghum Meal in Improving the Immune Status of HIV-Positive Adults.
(Karger Publishers, 2013-06-20)Background: Micronutrient deficiencies are common and compound the effects of human immunodeficiency virus (HIV) infection in Africa. Nutritional interventions, particularly vitamin A supplementation, may improve immune ... -
Egg quality characteristics of different varieties of domesticated helmeted guinea fowl (Numida meleagris)
(Academic Journals, 2013)A study was conducted to evaluate external and internal egg quality characteristics of the pearl, lavender, royal purple and white varieties of the helmeted guinea fowl kept intensively at Botswana College of Agriculture. ... -
Elephant impact on shoot distribution on trees and on rebrowsing by smaller browsers
(Elservier, 2006-10)In order to determine the effects of a megaherbivore, the African elephant (Loxodonta africana) on browse available for mesoherbivores, we assessed the vertical distribution of shoots (< 6 mm in diameter) on trees with ... -
Enhancing Germination of Seeds of Cassia abbreviata and Senegalia nigrescens Using Pre-Sowing Seed Treatments in Botswana
(Enviro Research Publishers, 2021-11-30)Cassia abbreviata and Senegalia nigrescens are indigenous trees found in North and Central regions of Botswana. However, inadequate knowledge of their silviculture and decline in population due to deforestation, expanding ... -
Enhancing quality of tertiary education through programme accreditation: a case of Botswana
(Elservier, 2010)This study presents narrated facts about the complex nature of accrediting tertiary education programs in Botswana. Content analysis procedures were employed to characterise the accreditation process experienced by local ...