Preventing mycotoxin contamination in groundnut cultivation

Jordan, David L.; Brandenburg, Rick; Payne, Gary A.; Hoisington, David; Magnan, Nick; Rhoads, James; Abudulai, Mumuni; Adhikari, Koushik; Chen, Jinru; Akromah, R.; Appaw, William; Ellis, William O.; Balota, Maria; Mallikarjunan, Kumar; Boote, Kenneth J.; MacDonald, Greg; Bowen, Kira L.; Bravo‐Ureta, Boris E.; Jelliffe, Jeremy; Budu, Agnes Simpson; Chalwe, Hendrix; Mweetwa, Alice M.; Ngulube, Munsanda; Dankyi, A.A.; Mochia, Brandford; Hoffmann, Vivian; Muitia, Amade; Mwangwela, Agnes; Njoroge, S.M.; Okello, David Kalule; Opoku, Nelson

doi:10.19103/as.2017.0023.28

Cited by 5 publications

(4 citation statements)

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“…Finding by Njoroge (2018) indicated that, at preharvest, aflatoxin contamination occurs when toxigenic fungi infects the developing pods or seeds by drought and high temperature. It was also reported that, on the field groundnuts are susceptible to aflatoxin contamination when the plant is stressed by high temperature and drought (Jordan et al, 2018).…”

Section: Climate Change and Weather Conditionsmentioning

confidence: 97%

“…The adoption of good agronomical and cultural practices (selection of appropriate planting date, and seed dressing with systemic fungicides), can minimize aflatoxin contamination in groundnuts (Njoroge, 2018;Jordan et al, 2018). Use of resistant cultivar is essential and recommended if aflatoxin contamination must be reduced (Waliyar et al, 2013).…”

Section: Pre-harvest Management Strategiesmentioning

confidence: 99%

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Aflatoxin contamination in groundnut (Arachis hypogaea L.); its causes and management

Kankam¹,

Larbi-Koranteng²,

Sowley³

2021

GJSTD

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Section: Climate Change and Weather Conditionsmentioning

confidence: 97%

Section: Pre-harvest Management Strategiesmentioning

confidence: 99%

Aflatoxin contamination in groundnut (Arachis hypogaea L.); its causes and management

Kankam¹,

Larbi-Koranteng²,

Sowley³

2021

GJSTD

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“…These fungal species are ubiquitous and thrive well in soil environments that are prohibitive to other soil-borne microorganisms (Richard and Payne, 2003). They are adapted to moisture deficits and elevated soil temperatures often associated with end-of-season drought stress (Jordan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Using relationships between environmental conditions during the pod-development stage of peanut growth, researchers have shown that aflatoxin content at harvest can be predicted successfully (Henderson et al, 2000;Craufurd et al, 2005;Chauhan et al, 2010;Bowen and Hagan, 2015). At field level, late season plant exposure to prolonged moisture deficits and high soil temperatures is strongly associated with elevated aflatoxin content in harvested kernels (Hill et al, 1983;Rachaputi et al, 2002;Torres et al, 2014;Kachapulula et al, 2017;Jordan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Predicting aflatoxin content in peanuts using ambient temperature, soil temperature and soil moisture content during pod development

Chalwe¹,

Lungu²,

Mweetwa³

et al. 2019

Afr. J. Plant Sci.

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Higher than acceptable aflatoxin levels in peanut kernels (Arachis hypogaea L.) and related products is a worldwide food safety concern. Strict regulatory standards by major importers of peanuts limit the marketability of peanuts for many developing tropical countries including Zambia. The incidence of preharvest aflatoxins is strongly linked to soil and weather conditions during pod-development. This study aimed to formulate statistical models to predict total aflatoxin content in peanut kernels using selected environmental factors during pod development. Field experiments were conducted for two years during which the peanut crop was exposed to 84 combinations of ambient temperature, soil temperature and soil moisture content measured during the last 30 days of pod development. These data were used to formulate regression models to predict total aflatoxin content in peanut kernels. Simple linear regression models had R 2 values of 0.30 for maximum ambient temperature, 0.24 for soil temperature and 0.38 for soil moisture content. Combining soil moisture content and soil temperature in a multivariate regression model could explain 54% of the variation in total aflatoxin content while a combination of soil moisture content and maximum ambient temperature could only explain 46% of the variation in total aflatoxin content.

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Examples of Risk Tools for Pests in Peanut (Arachis hypogaea) Developed for Five Countries Using Microsoft Excel

Jordan

Buol

Brandenburg

et al. 2022

Journal of Integrated Pest Management

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Suppressing pest populations below economically-damaging levels is an important element of sustainable peanut (Arachis hypogaea L.) production. Peanut farmers and their advisors often approach pest management with similar goals regardless of where they are located. Anticipating pest outbreaks using field history and monitoring pest populations are fundamental to protecting yield and financial investment. Microsoft Excel was used to develop individual risk indices for pests, a composite assessment of risk, and costs of risk mitigation practices for peanut in Argentina, Ghana, India, Malawi, and North Carolina (NC) in the United States (US). Depending on pests and resources available to manage pests, risk tools vary considerably, especially in the context of other crops that are grown in sequence with peanut, cultivars, and chemical inputs. In Argentina, India, and the US where more tools (e.g., mechanization and pesticides) are available, risk indices for a wide array of economically important pests were developed with the assumption that reducing risk to those pests likely will impact peanut yield in a positive manner. In Ghana and Malawi where fewer management tools are available, risks to yield and aflatoxin contamination are presented without risk indices for individual pests. The Microsoft Excel platform can be updated as new and additional information on effectiveness of management practices becomes apparent. Tools can be developed using this platform that are appropriate for their geography, environment, cropping systems, and pest complexes and management inputs that are available. In this article we present examples for the risk tool for each country.

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Preventing mycotoxin contamination in groundnut cultivation

Cited by 5 publications

References 0 publications

Aflatoxin contamination in groundnut (Arachis hypogaea L.); its causes and management

Aflatoxin contamination in groundnut (Arachis hypogaea L.); its causes and management

Predicting aflatoxin content in peanuts using ambient temperature, soil temperature and soil moisture content during pod development

Examples of Risk Tools for Pests in Peanut (Arachis hypogaea) Developed for Five Countries Using Microsoft Excel

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