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...
ABSTRACT Two different studies were conducted at the Forest and Horticultural Crops Research Centre FOHCREC), Kade- Okumaning, from May 2011 to April 2012. The main objectives were to investigate the biological effects of biofertilizers, inorganic fertilizer and biochar on the growth, yield and fruit quality of okra in the forest ecological zone of Ghana. High Yield Technology (HYT) biofertilizers, biochar and inorganic fertilizers at three levels each, 100%, 50% and 0% were considered. Two d...
ABSTRACT Pot and field studies were carried out at the University o f Ghana, Legon, to evaluate the effect of Bradyrhizobium japonicum inoculation and five rates of phosphorus application on growth, nodulation and dry matter production o f some promiscuous and non-promiscuous soybean cultivars in pots and finally the effect o f three rates of phosphorus and inoculation on growth, nodulation, dry matter production and yield of a promiscuous cultivar "Bengbie" in the field. In the pot experimen...
ABSTRACT Two separate field experiments were conducted at Sogakope (Tordome), in the South-Tongu District of the Volta Region and at the University of Ghana Research farm, Legon, in the Greater Accra Region from August, 2017 to March, 2018. The aim of this study was to evaluate the yield performance of four introduced varieties of onion namely, Dayo, Trophy, Red-Creole, and Orient against the commonly grown variety ‘Bawku-Red’ under two different ecozones in Ghana. The experimental design...
ABSTRACT The majority of the world’s silk is mulberry obtained from the domesticated silkworm, Bombyx mori L. (Lepidoptera: Bombycidae) with wild silk being minimal. A survey was undertaken in three agro-ecological zones in Ghana to document the wild silkmoth populations and their host plants. In addition, the effect of three mulberry varieties; Mysore local, Kanva 2 and S36 on the performance of five B. mori L. strains; G2xV2xH1xKK, M2xN2xSN1xI1, Z/Y, ICIPE I and ICIPE II was evaluated in ...