Volume 7, Issue 1 (2011)
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Effect of phloem sap deposition on properties of sapwood in Pterocarpus angolensis (Mukwa) following bark stripping by elephants in Chobe forests reserves in northern Botswana
(Botswana University of Agriculture & Natural Resources, 2011)An investigation was carried out to assess properties of sapwood in Pterocarpus angolensis following debarking by elephants in Botswana. The objective of this study was to assess the effect of phloem sap deposition on ... -
Effect of fire burning interval on species composition, herbage yield and bush control in the savanna of eastern Botswana
(Botswana University of Agriculture & Natural Resources, 2011)The purposes of this study were to examine the effects of various fire burning intervals on the dynamics of woodland structure and the resultant herb layer in the savanna vegetation of eastern Botswana. Plots of 1.2 ... -
Evaluation of relative resistance of four cowpea (Vigna unguiculata (L.) Walp) varieties to the black cowpea aphid (Aphis Craccivora) in South-eastern Botswana
(Botswana University of Agriculture & Natural Resources, 2011)Cowpea (Vigna unguiculala (L.) Walp) is an important food legume in many tropical countries, but its production is seriously constrained by insect pests. Aphis craccivora is one of the major pests of cowpea worldwide. ... -
Effects of original source of dairy cows, season and age on milk production in Botswana
(Botswana University of Agriculture & Natural Resources, 2011)The objective of the study was to determine the effects of animal and environmental factors on milk yield of Holstein dairy cows kept under intensive system in Botswana. A total of 768 monthly records of 27 Holstein ... -
Effective stage of African marigold (Tagetes errecta L.) in reducing the root knot nematode (Meloidogyne incognita) Kofoid and White population in a tomato (solanum lycopersicon) crop in Ghana
(Botswana University of Agriculture & Natural Resources, 2011)The aim of the study was to investigate the effective stage of the African marigold, Tagetes erecta, in suppressing root-knot nematode populations in Ghana. Two experiments were conducted in the plant house-/laboratory ... -
Maize-sweetpotato intercropping influences on agronomic characteristics and soil chemical properties in Swaziland
(Botswana University of Agriculture & Natural Resources, 2011)Intercropping is a common cropping system in the humid tropics, and involves growing two or more crops simultaneously on the same farm. The aims of the study were to assess the effects of intercropping maize (Zea mays ... -
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 ... -
Evaluation of bread wheat genotypes for yield and other characteristics in Botswana
(Botswana University of Agriculture & Natural Resources, 2011)Evaluation of bread wheat genotypes for yield and other characteristics in Botswana. A few farmers produce a limited quantity of wheat in Botswana using cultivars that have not been recommended for production in the ... -
Potential of an appropriate cropping program for root-Knot (Meloidogyne Spp.) nematode management in tomato cropping systems in Kenya
(Botswana University of Agriculture & Natural Resources, 2011)Studies were undertaken under greenhouse and field conditions to determine the suppressiveness of a wide range of plant species to Meloidogyne spp. nematodes. Potted plants were inoculated with 6000 eggs and /or juveniles ... -
Micro-anatomical changes occurring in the mucosal epithelium of gastrointestinal tract components of ostriches fed ration including or excluding grit in botswana
(Botswana University of Agriculture & Natural Resources, 2011)The aim of this study was to compare the micro-anatomical changes occurring in the luminal epithelium of some gastrointestinal tract (GIT) components of ostriches with and without access to grit in Botswana. Fourteen ostrich ... -
Effects of farmer support programmes on maize production: the case of the millennium development authority programme in the Sekyere east district of Ghana
(Botswana University of Agriculture & Natural Resources, 2011)This study examined effects of farmer support programmes on maize production in the Sekyere . East District of Ghana using the Millennium Development Authority Programme (MiDA) as a case study. Data was collected from 100 ... -
Growth Performance of Holstein-Friesian heifer calves weaned at different ages and raised in mobile calf hutches and conventional calf pens in Botswana
(Botswana University of Agriculture & Natural Resources, 2011)This study was designed to evaluate the growth performance of Holstein-Friesian heifer calves weaned at three different ages and reared in two housing types i.e. mobile calf hutches and conventional calf pens at Sebele ... -
A Nutritional quality of aspen suckers under simulated browsing on Cedar Mountain of Southern Utah, Western United States of America
(Botswana University of Agriculture & Natural Resources, 2011)The objective of the study was to determine how time and intensity, of clipping (simulated browsing) on suckers of Populus tremuloides Michx affected the nutritional quality of the clipped material on Cedar Mountain, ... -
Effect of roof insulation materials on broiler housing heat exchange during summer and winter seasons in Southeastern Botswana
(Botswana University of Agriculture & Natural Resources, 2011)A study was conducted to investigate the effects of three different roof insulation treatments, namely, Thatch grass (TH), Envirotuff (EN) and Alucushion (AL) on conductive heat flux exchange (HFE) when compared to that ...
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