Crop Science Research Papers/Topics

Effect Of Organic Mulch On Growth And Yield Of Sweet Pepper

                                                    ABSTRACT The high cost and increasing disposal problems associated with polyethylene mulch and greater availability of organic mulches prompted an investigation into the effects of organic mulches on growth and yield of sweet pepper at the University of Ghana Forest and Horticultural Crops Research Centre, Okumaning near Kade. Two field experiments were conducted in the raining season, that ...

Identification Of Rice (Oryza Spp.) Landraces With Nitrogen Use Efficiency In Ghana

ABSTRACT Sustainability in rice cultivation requires increasing yield while protecting the environment against pollution from the over-use of fertilizers through the utilization of varieties that are nitrogen use efficient. Hence, the goals of the study were to: 1) characterize the assembled landraces of rice 2) describe the growth response of rice landraces under different nitrogen levels 3) assess the relationship between yield related traits and NUE components and 4) evaluate the extent of...

Etiology And Control Of Bulb Rot Disease Of Onion (Allium Cepae L.) In The Eastern Region Of Ghana

ABSTRACT A study was carried out to assess farmers’ knowledge on prevalence, spread, control and economic importance of onion bulb rot disease in the Fanteakwa and Kwahu South Districts in the Eastern region of Ghana, determine the incidence and severity of the disease in the two districts and identify the causal organism of the disease and to develop a chemical control regime for management of the disease. Some local and exotic onion lines were screened for resistance to the disease. Eight...

Some Functional Properties Of Selected Ghanaian Cereals And Legumes

ABSTRACT This study was designed to examine'the functional properties of whole flours and starches of sorghum, millet, cowpea and bambara nuts from Ghana as well as Canadian wljeart. Functional properties tested on starches were the gelatinization temperature and range, and swelling and solubility patterns. The basic chemical analysis of flours determined and the functional properties tested were viscosity characteristics, gel strength and retrogradation tendency of flour gels. Gelatinization...

Isolation, Identification and Pathogenicity of Fungal Pathogen(s) Causing Black Sigatoka Disease of Local Plantain and Banana in Ghana

Abstract A study was conducted at the Crop Science Department, University of Ghana, Legon, to isolate,identify and test pathogenecity of fungal isolates causing the reported black sigatoka disease of plantain in Ghana and compare the isolate with that isolated from local tall banana having leaf spots. Field symptoms of plantain and banana were compared and found to be similar. Initial specks indicating infection were minute, reddish-brown and were conspicuous only on the abaxial leaf surfaces...

Studies on Oil Palm Cropping Systems in Ghana

ABSTRACT  A survey was conducted in 1994 to gather information on the practice of intercropping food crops in oil palm on small-scale farms in the oil palm zones of southern Ghana. The objective was to identify and study intercropping systems used in oil palm production. Data was collected by interviewing a total of 72 oil palm farmers from the oil palm growingregions,(Eastern, Central,Western,Ashanti,Brong-Ahafo,and Volta) at their farm locations. The responses indicated that the small-scal...

Effect Of Temperature On Population Dynamics Of Meloidogyne Spp. And Fusarium Spp. Infesting Sweet Pepper In Niger

ABSTRACT Meloidogyne spp. and Fusarium spp. cause wilt disease in sweet pepper and result in decline of its production. Other limiting factors of sweet pepper production are inappropriate agronomic practices and lack of effective climate adaptation strategies. The aim of this study was to investigate on one hand, how farmers perceive climate change and their access to agricultural extension services and, on the other hand the distribution and identification of causal agents of wilt disease an...

Evaluation Of Tomato (Solanum Lycopersicon L.) For Morphological Attributes And Yield Under Envirodome Greenhouse Conditions

ABSTRACT Envirodome greenhouse technology has become a widely accepted and profitable system for vegetable production particularly in Ghana. However, plant varieties best suited for the Envirodome have not been fully exploited in Ghana. Thus, an experiment was carried out at the Forest and Horticultural Crops Research Centre (FOHCREC), Okumaing-Kade in Ghana from July 2018 to April 2019 to assess eight different types of tomato for some morphological and yield attributes under Envirodome gree...

The Effect Of Alachlor-Atrazine Mixture And Diuron On Weed Control, Growth And Yield Of Maize And Their Residual Effect On Growth, Nodulation And Yield Of Cowpea.

ABSTRACT Two field experiments were carried out from July 1993 to January 1994 at the University of Ghana farm, Legon. The first experiment investigated the effects of two preemergent herbicides alachlor-atrazine mixture and diuron at the manufacturers' recommended rates and at rates 50% above those recommended on weed control, growth and yield of maize variety 'Abeleehi'. The second experiment carried out on the same plots determined the residual effects of these herbicides on two varieties ...

Effect of Modified Atmosphere Packaging and Storage Temperature on the Quality of Green Chilli Pepper Fruits

ABSTRACT The influence o f modified atmosphere packaging (MAP) and storage temperature on the postharvest quality characteristics and biochemical properties o f green chilli peppers (Capsicum sps. cvs Legon 18 and KA2) was investigated. Packaging films; Low Density Polyethylene (LDPE) 35fim non-perforated and perforated, Polypropylene(PP) 80^m nonperforated and perforated (twenty perforations were made on each perforated bag using a pin of diameter 0.14 mm) and LDPE micro-perforated 31.75p.m...

RELATIVE SUSCEPTIBILITY OF SELECTED MAIZE SEED VARIETIES TO THE MAIZE WEEVIL (Sitophilus zeamais Motschulsky) IN GHANA

ABSTRACT Studies were carried out under ambient laboratory conditions of 25 ± 2°C and 70 ± 5% relative humidity to determine the relative susceptibility of eighteen maize seed varieties to attack by the maize weevil, Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae). The experiment was laid out in a Completely Randomized Design (CRD), with eighteen maize varieties replicated three times. Adult mortality, number of F1 progeny, weevil development time, susceptibility index, seed dam...

MALARIA TRANSMISSION DYNAMICS AND INSECTICIDE RESISTANCE STATUS OF ANOPHELES FUNESTUS (DIPTERA: CULICIDAE) DURING FOUR YEARS OF INDOOR RESIDUAL SPRAYING IN NORTHERN GHANA.

ABSTRACT Malaria remains a major public health problem in Africa, with An. funestus as one of the principal vectors. In the control of malaria, vector control has been successfully implemented in many malariaendemic countries with indoor residual spraying (IRS) as an existing front-line measure. IRS has been implemented in some selected sites in Northern Ghana since 2009 and its effect on the members of An. funestus is poorly understood. Therefore, this study was aimed at investigating the sp...

AETIOLOGY, ECONOMIC IMPORTANCE AND CONTROL OF MANGO (Mangifera indica L.) TREE DECLINE DISEASE IN NORTHERN REGION OF GHANA

ABSTRACT This research was conducted from May, 2015 to July, 2016 in the three mango growing districts of the Northern Region of Ghana to obtain baseline information on farmers’ knowledge and perception on prevalence, spread, economic importance and control of mango tree decline disease; determine disease incidence and severity; identify the causal agent(s) of the disease and to develop a chemical control regime for management of the disease. Questionnaire survey and interviews were used to...

EVALUATION OF THE GROWTH AND YIELD OF SOLANUM LYCOPERSICUM L. PECTOMECH GRAFTS IN ROOTKNOT NEMATODE INFESTED SOILS

ABSTRACT This study evaluated the resistance, agronomic performance, yield, fruit quality and shelf life of Solanum lycopersicum “Pectomech” grafted (cleft method) onto four Solanum spp. rootstocks (Solanum macrocarpon, Solanum aethiopicum, Solanum lycopersicum “Mongal”, and Solanum lycopersicum “Samrudhi”) under four root knot nematode densities (0, 500, 1000 and 5000). It consisted of a greenhouse pot experiment, field pot experiment, and open field experiment. The experimental ...

AN EVALUATION OF THE NEMATICIDAL POTENTIAL OF FIVE BOTANICALS IN THE MANAGEMENT OF MELOIDOGYNE SPP ON TOMATO

ABSTRACT In Ghana, information on plants antagonistic to nematodes is scanty compelling farmers to rely on synthetic chemicals which are effective but pose an environmental threat. This work aimed to evaluate the effect of aqueous leaf extracts of Khaya senegalensis, Tectona grandis, Azadirachta indica, Vernonia amygdalina and Bryophyllum pinnatum plants for the control of Meloidogyne spp. In evaluating the botanicals, a laboratory, field and pot experiments were conducted. The first experime...


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