Abstract Both growth chamber and field experiments were conducted to study the influence of resistant tomato cultivars and applications of Vorlex (DD MENCS) on the population dynamics of root knot nematode species and growth and yield of subsequent crops of a susceptible tomato 3 3 cultivar. Four initial M. incognita inoculum densities (10 , 5 x 10 , 104 and 105 eggs/500 orT of soil) and two initial M. hapla inoculum o o o ^ densities (10 and 5 x 10 eggs/500 cm of soil) were used. Two resist...
Abstract According to Ameh(1990) fish constitutes a major part of the animal protein intake in West Africa, ranging from 20% in Benin, to 70% in Ghana, Sierra Leone and Senegal. It is an important source of animal protein in Ghana and, of all the animal protein sources it is the cheapest. It is also a source of iodine which could be used to control goitre (iodine deficiency disorder) now prevalent in Ghana. Acquah(1988) emphasised that although Ghana has abundant marine and fresh water fisher...
ABSTRACT Laboratory and field experiments were conducted to evaluate the effectiveness of neem seed water extracts ( NSWE) and pheromone traps to control the Mediterranean fruit fly, C capitata infesting citrus at the University of Ghana Agricultural Research Station (ARS), Kade. Neem seed extract of concentration 15%, 20% , 25% and 30% wt/vol were prepared and left overnight after which the suspensions were seived and used for spraying. Ripened fruits of Citrus sinensis cultivar Late Valenc...
ABSTRACT A field experiment was conducted to examine optimum plant population and compare yields of three local roselle cultivars; namely Bihi, Mogla 1 and Mogla 2 planted at four different spacings and harvesting at 31 days after planting by pruning the plant at 13.0 cm high. Subsequent harvesting of shoots was done at fortnightly intervals. The spacings were; 30cm x 30cm, 30cmx 35cm, 30cm x 40cm, and 30cm x 45cm. A pot experiment was also carried out to determine the appropriate plant age ...
ABSTRACT The research was conducted from late June to November, 2011 to evaluate the performance of five maize hybrids namely PAN 12 and PAN 53, Obatampa GH, Mamaba and ACR ’97 TZL Comp 1-w using five different fertilizer formulations: A- Actyva (275kg/ha), + Sulfan (250kg/ha), B- ERP (250kg/ha) + Actyva (275kg/ha), + Fertilizer Blend (250kg/ha), C- Actyva (275kg/ha), + Fertilizer Blend (250kg/ha), D- ERP (250kg/ha) +N: P: K. (275kg/ha), + Urea and E- control (N: P: K. (275kg/ha), + urea (...
ABSTRACT Aflatoxin contamination of agricultural commodities is gaining public prominence in Africa where it is pervasive due to favourable environmental conditions and high consumption of maize. Aflatoxins are toxic secondary fungal metabolites that contaminate dietary staples such as maize and groundnut resulting in adverse effect on food security, health and trade. This study evaluated the effectiveness of triple-layer hermetic bag to control aflatoxin in stored maize. A factorial experim...
ABSTRACT The coconut mite, Aceria guerreronis Keifer, has been identified as one of the pests that pose a threat to the coconut industry in Benin using a standard economic surplus model. The study presents the simulation results of the economic benefits of the biological control of coconut mites in Benin. In the least optimistic scenario, the economy would derive an overall net-gain of US$155,213.40. Considered at a discount rate of 12% for the period 2008-2027, net present value was about U...
ABSTRACT This study was carried out to determine the effects of Moringa oleifera leaf meal supplementation on the performance, carcass characteristics and blood haematological and serum biochemical profile of broiler chickens. Fresh Moringa leaves (FML) were harvested and shade – dried for three to four days and milled into meal. The experiment lasted for 8 weeks. A total of 448-day old broiler chicks were used in this experiment. The experimental birds were distributed randomly into seven...
ABSTRACT Kumi-Woode, B. G. 1996. Natural decay resistance of some Ghanaian timbers and wood decay hazard potential for Ghana. M.Sc.F. Thesis. Faculty of Forestry, Lakehead University, Thunder Bay, Ontario, Canada. 98 pp. (Advisor: E. C. Setliff, PhD). Key words: decay resistance, agar-block, soil-block, Coriolopsis polyzona, Oligoporus placentus, Pycnoporus sanguineus, Trametes versicolor, decay index. The natural decay resistance of 30 Ghanaian wood species, the decay capacity of four wood...
ABSTRACT The Nile tilapia, Oreochromis niloticus (Linnaeus, 1758) fingerling production is important for the continual expansion of the global tilapia aquaculture. This study evaluated the Akosombo Strain Nile tilapia fingerling production at the Aquaculture Demonstration CentreAshaiman, Ghana. A total of 1350 female brooders of mean weight 150.7±41.8 g and 450 males of mean weight 218.6±63.1 g were stocked into nine outdoor concrete tanks of size 50 m2 each in a sex ratio of 3:1 respectiv...
ABSTRACT Four experiments were undertaken to evaluate the effect of various treatment conditions on the nutritive value of urea-ammoniated rice straw. Experiment 1 was carried out to determine the optimum conditions necessary fo r ammoniating rice straw with urea. The factors investigated included urea concentration (3 .5 , 4.0, 6.5 and 8.0% W/w), treatment period (7, 14 and 21 days) and moisture le v e l (40, 50 and 60%), in a 4 x 3 x 3 fa c to r ia l experiment. Samples were analysed to ...
BSTRACT This study aimed at assessing the impact of climate change on traditional irrigation farming systems and adaptation strategies was conducted in Lushoto District. The specific objectives were to establish the trend and magnitude of climate change in the study area for the past 30 years (1985-2014), to assess the impact of climate change on crop yield in Ndiwa and Chamazi traditional irrigation farming systems, to analyse the way traditional irrigation farmers‘ adapt to climate change...
Abstract Marketing of crops in Tanzania has been undergoing change. Direct sales from farmers to traders and delivery to the Primary Cooperative Societies (PCS) were in practice at different points of time. Since 2007, the warehouse receipt system was introduced in Tanzania. The warehouse operators accept the deposit of crops in the warehouses and provide a receipt to the farmers through PCS and the farmers receive a part of the payments through bank financing based on these receipts. This s...
ABSTRACT Determination of correct stocking rate based on current rangeland condition still remains a big challenge to livestock farmers. Assessment of vegetation diversity and current rangeland condition was carried out in four communal rangelands, namely Siphocosini, Hawane, Motshane and Nkhaba. The rangeland condition assessment method employed in this study was the ecological condition index (ECI) method. Grass species composition and dry matter were estimated using the point-intercept me...
Abstract Surveillance and monitoring of emerging drug resistance are important as Namibia moves towards malaria elimination. In 2005 artemisinin combination therapies (ACT) were introduced as a first-line treatment for uncomplicated falciparum malaria in Namibia. However, reduced ACT efficacy has been reported in Asia and in some parts of Western Africa, raising concerns around the efficacy of artemisinin. This study aimed to identify the different Plasmodium species found in the Zambezi re...