SUMMARY The microsett technique involves the use of 2-10g setts comprising two size-ranges: a lower 2-5g and an upper 5. Ol-lOg. Preliminary experiments were undertaken to determine the ideal presprouting medium, moisture regime of the latter, presprouting environment, and sett size of the microsetts derived from the white yam variety, TDr 131. The upper 5.01-10g sett-class presprouted in open-air, raised beds covered with low palm-frond shade, using fresh sawdust at an initial moisture cont...
ABSTRACT Bacterial wilt of tomato is a devastating disease in greenhouse in southern Ghana where most greenhouses are sited. This study was conducted to assess farmer’s knowledge and experiences on the prevalence, detection, spread and control of the disease in greenhouses in Volta, Eastern, Central and Greater Accra regions of Ghana. The disease incidence and severity was also determined and the causal organism of the disease isolated from diseased tissues and characterized using morpholo...
ABSTRACT Globally, rice (Oryza sativa L.) is the third largest cultivated cereal crop with about 79 million hectares of irrigated lowlands providing 75% of the world’s rice production. Its productivity depends on many factors including Nitrogen (N) fertilizer and water management. This study was conducted to determine the effect of water management and N fertilizer on growth and yield of rice. The study also sought to evaluate the cost effectiveness of water use under various water managem...
ABSTRACT Two field experiments and a laboratory experiment were conducted at the University of Ghana, Farm, Legon and the Department of Crop Science respectively between June 2012 and May 2013 to determine the variation in floral morphology, fruit set and seed quality of twelve garden egg accessions. A randomized complete block design was used for the field experiments while a completely randomized design was used for the laboratory experiment. Data were collected on vegetative, reproductive...
ABSTRACT The success of any breeding programme depends to a large extent on the amount of genetic variability present in the working population at the disposal of the breeder(s). An experiment was set out to assess the genetic variability among 79 accessions of natural dura oil palm collected in Ghana and conserved at OPRI by evaluating 18 agro-morphological traits, 11 years after field planting. The 79 dura oil palms accessions were laid out in an augmented design with two checks on each blo...
ABSTRACT Sorghum [Sorghum bicolor (L.) Moench] is the fifth most important cereal crop of the world and second most important cereal crop grown in Africa. It is an important food and fodder crop in the semi-arid tropics of Africa, where it is used for making different kinds of food. In Ghana, it serves as a principal source of energy, protein, vitamins and mineral nutrients for the people in the Northern Regions. Having data on the existing diversity especially at the genotypic level in plant...
ABSTRACT An experiment to determine the effect of inorganic and organic fertilizers on the yield, fruit quality and soil fertility of Late Valencia (Citrus sinensi (L.) Osbeck) was carried out at the Forest and Horticultural Crops Research Centre, Kade in the semi-deciduous forest agro-ecological zone on a 13year old citrus orchard. The experiment was conducted in a randomized complete block design with four replications. The experiment consisted of six treatments: (I) 9 t/ha Oil palm empty f...
A B S T R A C T iv Cross pheromone-mediating releaser effects between the desert locust, Schistocerca gregaria gregaria, and the African migratory locust, Locusta migratoria migratorioides, were investigated in olfactometer bioassays. These were compared with responses of gregarious individuals of the two locust species to their own air-borne volatiles. Similar to previous reports, nympha1 and adult stages of S. gregaria responded strongly to their own volatiles; immature and mature adults re...
ABSTRACT The genus Aedes (Diptera: Culicidae) consists of mosquitoes that are of medical and veterinary importance. They are known to serve as vectors for several arboviruses that cause diseases such as yellow fever, dengue, chikungunya and zika. These arboviruses initially circulate among wild animals with transmission to humans and agriculturally important domestic animals made possible through vectors such as mosquitoes. This therefore prompts the importance and necessity for species ident...
ABSTRACT The increasing rate of pest resistance, high cost and health risk in the use of insecticides have become an issue of Public concern. This research therefore was undertaken to identify and assess botanicals that are used by the farmers of Volta Region to manage S. zeamais and P. truncatus in stored maize grains. A survey conducted revealed A. indica, C. anisata, P. amarus, P. nitida, V. amygdalima , N. latifolia and M. charantia as grain protectants against stored insect pests. ...
ABSTRACT Determination of genetic variability among genotypes is highly desirable for selection towards crop improvement and production. The main objective of this study was to evaluate variability in agro-morphological and fruit quality traits in seventeen (17) hot pepper genotypes under greenhouse and field conditions. The experiment was laid out in Randomized Complete Block Design with three replications under greenhouse and field environments. The estimation of genetic variance under in...
ABSTRACT A research was conducted from June 2008 to May 2009 with the main objectives to identify suitable hot pepper lines to be used in breeding for superior fruit yield and yield associated components based on their combining abilities, determine heterosis in the Fi generation, estimate heritability of various traits and correlation between yield and its associated characters. Eight (8) hot pepper lines were analysed in a line x tester fashion comprising six (6) lines and two (2) testers. ...
ABSTRACT Several studies have revealed that towards the east of Accra, there is no lymphatic filariasis (LF) but it occurs to the west of Accra. Anopheles melas is known to be an efficient vector of LF and it occurs along the coastal part of Ghana, especially in estuarine areas. The present study therefore aimed at seeking explanation to why this different patterns of LF distribution occur along coastal Ghana. The hypothesis was that the eastern An. melas populations could be different from t...
ABSTRACT The study is aimed at assessing the effect of processing techniques on physical attribute, storage and nutritional composition of wild mushroom (Termitomyces spp) and oyster mushroom (Pleurotus ostreatus) at the Nutrition Laboratory of Noguchi Memorial Institute, Legon. A structured questionnaire was used to collect information on farmer’s methods of harvesting, managing and reducing postharvest losses of wild mushrooms. The questionnaire was pre-tested on 50 participants that were...
ABSTRACT Six extra-early QPM inbred lines from IITA were investigated using a partial diallel cross design. The objectives were to assess the hybrids and their parents for their agronomic performance. The six parents along with their hybrids (15) were evaluated using a Randomized Complete Block Design (RCBD) with three replications per site in four locations. Genetic correlations, general combining ability (GCA) and specific combining ability (SCA) effects as well as mid-parent heterosis were...