Aflatoxin contamination of groundnut is a serious problem in most groundnut producing countries and as such is given high research priority by the Groundnut Improvement Program of ICRISAT. Since 1979 we have concentrated on selecting cultivars resistant to seed invasion and colonization by toxigenicAspergillus flavus, and/or to aflatoxin production following invasion by the fungus. Resistance to invasion and colonization byA. flavus of rehydrated, mature seed has been found, and confirmed, in some cultivars. We have also screened several groundnut cultivars for seed resistance in the field, both under natural conditions and with the inoculum of the fungus added to the soil in the pod zone. Some cultivars with resistance to seed colonization also showed resistance to seed invasion byA. flavus. None of the cultivars tested has shown complete resistance to aflatoxin production but significant cultivar differences occurred in the amounts of aflatoxin produced in seeds inoculated with a toxigenic strain ofA. flavus.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Price includes VAT (USA)
Tax calculation will be finalised during checkout.
Anonymous 1977 Report of the joint FAO/WHO/UNEP Conference on Mycotoxins, Nairobi, 19–27 September, 1977.
Aujla S S, Chohan J S and Mehan V K 1978 The screening of peanut varieties for the accumulation of aflatoxin and their relative reaction to the toxigenic isolate ofAspergillus flavus Link ex Fries. Punjab Agricultural University J. Res. 15, 400–403.
Bartz Z A, Norden A J, LaPrade J C and Demuynk T J 1976 Tolerance to colonization byAspergillus flavus found in certain peanut (Arachis hypogaea L.) breeding lines and cultivars. J. Am. Peanut Educ. Assn. 6, 94.
Dieckert M C and Dieckert J W 1977 Genetically determined structural parameters of the seed coat affecting the colonization of peanut seed by aflatoxin producingAspergilli. Oleagineux 33, 78.
Doupnik B 1969 Aflatoxin produced on peanut varieties previously reported to inhibit production. Phytopathology 59, 1554.
Kulkarni L G, Sharief Y and Sarma V S 1967 “Asiriya Mwitunde” groundnut gives good results in Hyderabad. Indian Farming 17, 11–12.
Mehan V K and McDonald D 1980 Screening for resistance toAspergillus flavus invasion and aflatoxin production in groundnuts. ICRISAT Groundnut Improvement. Program Occasional Paper-2, 1–15.
Mehan V K and McDonald D 1981 Aflatoxin production in groundnut cultivars resistant and susceptible to seed invasion byAspergillus flavus. In Proceedings, International Symposium On Mycotoxins, 6–8 September, 1981, Cairo, Egypt.
Mehan V K, McDonald D and Gibbons R W 1982 Seed colonization and aflatoxin production in groundnut genotypes inoculated with different strains ofAspergillus flavus. Oleagineux 37, 185–191.
Mehan V K, McDonald D and Lalitha B 1983 Effect of season, location and field-drying treatment onin vitro seed colonization of groundnut genotypes byAspergillus flavus. Oleagineux (In press).
Mixon A C 1979 Developing groundnut lines with resistance to seed colonization by toxin-producing strains ofAspergillus species. Pest Artic. News Summ. 25, 394–400.
Mixon A C and Rogers K M 1975 Peanut accessions resistant to seed infection byAspergillus flavus. Agron. J. 65, 560–562.
Mixon A C and Rogers K M 1975 Factors affectingAspergillus flavus Lk. ex. Fr. colonization of resistant and susceptible genotypes ofArachis hypogaea L.. Peanut Sci. 2, 18–22.
Nabney J and Nesbitt B F 1965 A spectrophotometric method for determining the aflatoxins. Analyst 90, 155–160.
Pons W A, Robertson J A, Goldblatt L A 1966 J. Assn. Off. Chemists' Soc. 43, 665–669.
Rao K S and Tulpule P G 1967 Varietal differences of groundnut in the production of aflatoxin. Nature London 214, 738–739.
Zambittakis Ch, Waliyar F, Bockele-Morvan A and Pins O de 1981 Results of four years of research on resistance of groundnut varieties toAspergillus flavus. Oleagineux 36, 377–385.
ICRISAT Journal Article No. JA-316
About this article
Cite this article
Mehan, V.K., McDonald, D. Research on the aflatoxin problem in groundnut at ICRISAT. Plant Soil 79, 255–260 (1984). https://doi.org/10.1007/BF02182348
- Aspergillus flavus
- Seed colonization
- Seed invasion