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AdeOluwa O.O.,National Horticultural Research Institute | Amao I.O.,Jericho Systems
International Journal of Vegetable Science | Year: 2016

Golden sweet melon (Cucumis melo L. var. Golden sweet) is an underused member of the melon family. The study was undertaken to assess consumer knowledge of the crop. Data were collected from 160 respondents using questionnaires. Descriptive and inferential statistics were used to analyze results. Most respondents were male with advanced education. About 70% did not know that golden sweet melon existed; only 16.3% had consumed it. The lack of knowledge of the crop is likely due to it not being common among marketers. To improve consumer consumption, increased knowledge that the crop exists is needed. © 2016 Taylor & Francis

Akinyemi S.O.S.,National Horticultural Research Institute | Aiyelaagbe I.O.O.,Abeokuta Federal University of Agriculture | Akyeampong E.,World Vegetable Center
Acta Horticulturae | Year: 2010

Plantain (Musa spp.) occupies a strategic position for rapid food production in Nigeria. It is ranked third among starchy staples. The country's output doubled in the last 20 years. Production, which is concentrated in the Southern part of the country, still remains largely in the hands of small scale farmers who, over the years, have ingeniously integrated it into various cropping systems. Production is male dominated, while women essentially handle marketing. The inadequate knowledge of improved cultural practices of the crop by the farmers, an inefficient system of extension services and skewness of specialization in areas of research are part of the reasons why yield potential of plantain is still low in the country. Contributions of plantain to the income of rural households in major producing areas in Nigeria continue to increase tremendously in the last few years. Unlike some other starchy staples whose demand tend to fall with rising income, demand for plantain increases with increasing income. With the potential for industrial processing of plantain, which has recently been adopted, and the increased interest in production by small and large scale farms in the country, it is believed that Nigeria will continue to be one of the world's largest producers of plantain.

Yoon J.-Y.,Seoul Womens University | Chung B.-N.,National Horticultural Research Institute | Choi S.-K.,Korea University
Virus Genes | Year: 2011

The variability in the nucleotide (nt) and amino acid (aa) sequences of the coat protein (CP) of Odontoglossum ringspot virus (ORSV), which naturally infects orchids worldwide, was investigated. The CP genes of 48 ORSV isolates originating from different locations in Korea were amplified using RT-PCR and sequenced. The encoded CP consists of 158 aa. The CP sequences of the Korean isolates were compared at the nt and aa levels with those of the previously published ORSV isolates originating from different countries. The Korean isolates share 94.8-100% and 92.4-100% CP identity to ORSV isolates from other countries at the nt and aa levels, respectively. No particular region of variability could be found in either sequence of the viruses. In the deduced aa sequence, the N-terminal region was more conserved than the C-terminal region in ORSV. The phylogenetic tree analysis and recombination analysis revealed that there was no distinct grouping between geographic locations and sequence identity, and nor distinct intra-specific recombination events among ORSV isolates. © 2010 Springer Science+Business Media, LLC.

Adebayo O.S.,National Horticultural Research Institute
Acta Horticulturae | Year: 2011

Tomato (Lycopersicon esculentum) is a major vegetable crop in Nigeria and its culinary use cuts across class and culture, making it a crop of immense popularity. However, tomato cultivation in Nigeria is severely affected by bacterial wilt disease caused by the soil borne pathogen Ralstonia solanacearum. Survey of major tomato producing areas in the southwestern parts of the country showed epidemics of bacterial wilt with high incidences of 60-80% in fields. High yield loss of over 70% was observed in 60% of the fields and tomato cultivation was completely impossible in some areas due to high yield loss. The disease more recently is observed now across major agro-ecological zones in Nigeria. Investigation into the isolation, identification and characterization of the pathogen preceded research efforts aimed towards the control. R. solanaceanum isolates were characterized to belong to race 1 biovar 3. Attempts made in the use of cultural control, host resistance gave variable results while the use of Plant Growth Promoting Rhizobacteria (PGPR) showed promising results. This paper addresses production constraints of tomato as a result of bacterial wilt disease, the research efforts targeted at these constraints are highlighted and recommendations are made on achieving a sustainable control to enhance the production level of tomato.

Ajibola A.T.,Ladoke Akintola University of Technology | Modupeola T.O.,National Horticultural Research Institute
Journal of Plant Sciences | Year: 2014

The field experiment was conducted during at the Teaching and Research Farm, Ladoke Akintola University of Technology, Ogbomoso, Nigeria. To evaluate the rate of Amaranth growth to different plant based mulching materials and their response to weed infestation. There were three plant materials incorporated into the soil which are tithonia, neem, gliricidia with four weed levels being weed free, weed once, weed twice. They were replicated three times making a total of thirty-six experimental plots. The experiment was laid out in a Randomized Complete Block Design (RCBD), data collected was subjected to Analysis of Variance (ANOVA) and means were separated using Duncan Multiple Range Test (DMRT) at 5% probability level. Results from the experiment showed that better growth and yield of amaranth was obtained in the weed free plot. Both duration of weed eradication and weed infestation had significant effect on plant height, stem girth and yield of amaranth. In general, all these parameters increase as the duration of weed amaranth competition decreased, while growth parameters increase with an increase in weed eradication. However, highest value was obtained from tithonia mulch plots and neem mulch produced the lowest value on plant height and yield while gliricidia mulch gave the lowest value of stem girth. © 2014 Academic Journals Inc.

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