ABSTRACT Three experiments were conducted at AVRDC-ESA, Arusha-Tanzania in 2014/2015, to assess performance of Tanzanian commercial tomato cultivars„Tanya‟, „Tengeru 2010‟, and „Tengeru 97‟ grafted on the tomato rootsock lines („BF OKITSU 101‟, „HAWAII 7996‟ and „R3034-3-10-N-UG‟) with specific objectives: (1) to determine survival rate of the grafted seedlings; (2) to evaluate the effect of grafting on vegetative growth (days to 50 % flowering (ND50FL), fruit maturit...
ABSTRACT The efficiency of energy sources used by households was experimentally determined in this study. To achieve the study objectives, comparison was done between different energy sources such as LPG, electricity, charcoal and firewood. The comparison was determined by observing efficiency of energy sources and the subsequent cost. The tools like experimentation, questionnaire, interviews, and documentary data were used. Four types of energy sources were employed to cook 250g of beans. Th...
ABSTRACT Sustainability of open spaces in urban centres is threatened by overpopulation. A study was conducted in 2014 within four wards of Dodoma Capital City District (CCD), to investigate the influence of urban expansion on institutional arrangements for management of urban open spaces. Specific objectives being to establish the trends of urban expansion in relation to open space provision and accessibility; to identify institutions, roles, mandates and to identify important strength, weak...
ABSTRACT Huge pressures on protected areas (PAs) in the Serengeti ecosystem in Tanzania are increasing through the extractive use by surrounding communities and human-wildlife-related conflicts, which undermine conservation objectives and human welfares. The study examined household reliance on environmental income and wildlife-induced costs due to crop raiding and livestock depredation along the gradient of distance from Serengeti National Park (SNP) boundary in the western Serengeti. Data w...
ABSTRACT A study was conducted to determine the effect of post-harvest losses on artisanal fisheries production in Mtera Dam, Tanzania, based on specific objectives: (1) to analyze factors associated to post harvest loss, (2)to quantify the amount in post harvest losses at Mtera Dam, and (3) to evaluate mitigation measuresto overcome post-harvest losses. A cross-sectional research design was adopted whereby both quantitative and qualitative research approaches were used. The sample size of th...
ABSTRACT Sustainability of many rangelands including Simanjiro Maasai steppe rangelands is limited in part by invasive plant species. A study was conducted among two selected village rangelands (Terrat and Sukuro) of the Simanjiro district aimed to (1) determine the effect of Ipomoea hildebrandtii and I. kituiensis on herbage species composition, richness, and basal cover; and (2) determine the effect of Ipomoea hildebrandtii and I. kituiensis on herbage biomass productivity. Other objectives...
ABSTRACT A study was conducted at Marumbi and Uroa villages of Central District of Unguja Zanzibar to assess diversity of medicinal trees species based on specific objectives: (1) to determine diversity of medicinal tree species in the two study village forests; and (2) to determine extent of extraction of medicinal trees: A total of 99 circular plots (radius, r= 11.28 m) were laid down systematically. Medicinal trees were identified and recorded against tree tally, and computed for indices ...
ABSTRACT This study assessed the diversity of parasites of milkfish Chanos chanos cultured along Zanzibar coasts. The study analyzed the prevalence, mean intensity, diversity and richness of parasites species and to relate the occurrence of this parasites in relation to physico- chemical parameters of the ponds water and feeding modes of the fish. Three different localities were selected for this investigation. A total of 110 milkfish were dissected, the body cavity of each fish removed out v...
ABSTRACT Natural forest lost at high rate year after year. Most of the area are cleared and transformed to agricultural land, which influences changes in hymenopterans diversity. Therefore, understanding the hymenopterans diversity in various land use forms of agriculture are of vital importance to guide in conservation approaches. This study analyzed the effects of land use in hymenopterans diversity in Unguja Island – Zanzibar. Hymenopterans were sampled in five land-use forms between Jan...