Factors responsible for market losses of tomato fruits in the Zaria area of Nigeria

Okoli, CC; Erinle, I. D.

doi:10.1080/14620316.1989.11515929

Cited by 8 publications

(4 citation statements)

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“…The subsections list the practices and causes of losses identified by literature and by field workshops for each stage. Tomatoes in Nigeria are grown outside and farmers do not control many variables that affect the quantity and quality of harvest, such as temperature, relative humidity, solar radiation and growing media [96], and soil moisture and presence of pathogens [97]. Farmers generally lack access to improved varieties and quality seeds [98].…”

Section: Framework Assessment: Comparison With Tomato Supply Chains Imentioning

confidence: 99%

A Systems Approach to Food Loss and Solutions: Understanding Practices, Causes, and Indicators

et al. 2019

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Reasons behind food loss can be very specific for each product and supply chain stage but it is also affected by factors independent of the product and stage. This work focuses on such generic factors and develops a framework to analyze food loss as a systemic outcome. The framework highlights the interconnected nature of problem across supply chain stages and therefore emphasizes the need to look at the whole system instead of specific stages, when proposing solutions. Practices and underlying causes contributing to food loss are identified for each stage of the supply chain using a literature search. Deductive logic is used to fill the gaps where literature was found to be scarce, and to derive socio-economic indicators that signal the presence of identified causes. Using this framework, we propose a non-exhaustive list of 30 socio-economic indicators, which can signal the presence of the 22 practices and 60 causes associated with food loss in supply chains. This list can serve as a starting list for practitioners and policymakers to build on when analyzing food losses in supply chains in their region. We evaluate the framework using a field-study of a tomato supply chain in Nigeria, and conclude that it can be a useful tool to identify practices, causes, and indicators of food loss.

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Section: Framework Assessment: Comparison With Tomato Supply Chains Imentioning

confidence: 99%

A Systems Approach to Food Loss and Solutions: Understanding Practices, Causes, and Indicators

et al. 2019

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“…Some of these were reported as significant pathogens of fruits during postharvest storage such as Pestalotiopsis sp. and Acremonium strictum on banana (Wallbridge, 1981), Geotrichum candidum on citrus (Hall and Scott, 1977) and tomatoes (Okali and Erinle, 1989), Epicoccum nigrum on tomatoes, apples and pears (Bruton et al, 1993), T. harzianum on apples (Penrose et al, 1984), and species of Mucor on guavas (Ito et al, 1979) and mangoes (Johnson et al, 1990). …”

Section: Resultsmentioning

confidence: 99%

Inhibitory Effects of Na-Hypochlorite and Heating on the Mycobiota Associated with Fruits or Juice of Passion (Passiflora edulisSims) in Uganda

Ismail

2006

Mycobiology

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A total of 34 species belonging to 21 genera of fungi were recorded on passion fruits of both pure and hybrid origin in Uganda, however, the pure type exhibited wider spectrum (28 species and 16 genera) than the hybrid type (21 & 15). Also, yeasts (unidentified and Rhodotorula mucilaginosa) were also encountered in high numbers. Moreover, the mean count of all mycobiota obtained from the pure type was higher than that of hybrid, despite the bigger size of the later. Members of yeasts and Cladosporium followed by Phoma, Penicillium, Fusarium and Alternaria species dominated on passion fruits of pure origin, while only C. cladosporioides, F. solani and yeasts dominated on the hybrid type. Treatment with Na-hypochlorite exhibited inhibitory effects on the total mycobiotic propagules as well as the dominant species from fruits of both types. The current results, therefore, suggest the use of Na-hypochlorite to control the post-harvest mycobiota associated with passion fruits. Regarding the mycobiota contaminating passion juice, yeasts were found to be the major contaminants with Candida parapsilosis being the most common. Moulds constituted only a minor proportion with Acremonium strictum followed by Fusarium chlamydosporum, F. moniliforme, F. acuminatum and F. solani as the most dominant species. In the heat-treated juice samples, the counts of the most commonly encountered mycobiota (both yeasts and molds) were significantly inhibited or completely eliminated. Some unidentified Bacillus species were also recovered from the juice, however, their counts in the heated samples were increased but insignificantly.

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“…Based on routine pathogenicity and biochemical tests, the bacterial spot pathogens of tomato and pepper have been reported from a considerable number of countries in Africa and the associated Islands. Alongside South Africa, these countries include Egypt, Ethiopia, Ghana, Kenya, Malawi, Morocco, Mozambique, Niger, Nigeria, Reunion, Senegal, Seychelles, Sudan, Togo, Tunisia, Zambia, and Zimbabwe ( OEPP/EPPO, 1988 ; Okoli and Erinle, 1989 ; Bouzar et al, 1994a , b ; Black et al, 2001 ; Abd-Alla and Bashandy, 2008 ; Tawfik et al, 2009 ; Hamza et al, 2010 , 2012 ; Opara and Odibo, 2009 ; Jibrin et al, 2014 , 2015 ; Kebede et al, 2014 ; Lamini et al, 2015 ; Algam et al, 2018 ; Ashmawy et al, 2020 ). The specific species of the pathogen responsible for the disease are yet to be determined for a considerable number of countries.…”

Section: Distribution Of Bacterial Spot Of Tomato and Pepper In Africamentioning

confidence: 99%

Bacterial Spot of Tomato and Pepper in Africa: Diversity, Emergence of T5 Race, and Management

et al. 2022

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Bacterial spot disease was first reported from South Africa by Ethel M. Doidge in 1920. In the ensuing century after the initial discovery, the pathogen has gained global attention in plant pathology research, providing insights into host–pathogen interactions, pathogen evolution, and effector discovery, such as the first discovery of transcription activation-like effectors, among many others. Four distinct genetic groups, including Xanthomonas euvesicatoria (proposed name: X. euvesicatoria pv. euvesicatoria), Xanthomonas perforans (proposed name: X. euvesicatoria pv. perforans), Xanthomonas gardneri (proposed name: Xanthomonas hortorum pv. gardneri), and Xanthomonas vesicatoria, are known to cause bacterial spot disease. Recently, a new race of a bacterial spot pathogen, race T5, which is a product of recombination between at least two Xanthomonas species, was reported in Nigeria. In this review, our focus is on the progress made on the African continent, vis-à-vis progress made in the global bacterial spot research community to provide a body of information useful for researchers in understanding the diversity, evolutionary changes, and management of the disease in Africa.

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Factors responsible for market losses of tomato fruits in the Zaria area of Nigeria

Cited by 8 publications

References 0 publications

A Systems Approach to Food Loss and Solutions: Understanding Practices, Causes, and Indicators

A Systems Approach to Food Loss and Solutions: Understanding Practices, Causes, and Indicators

Inhibitory Effects of Na-Hypochlorite and Heating on the Mycobiota Associated with Fruits or Juice of Passion (Passiflora edulisSims) in Uganda

Bacterial Spot of Tomato and Pepper in Africa: Diversity, Emergence of T5 Race, and Management

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