Darrah, L.L. and Lillehoj, E.B. and Zuber, M.S. and Scott, G.E. and Thompson, D. and West, D.R. and Widstrom , N.W. and Fortnum, B.A. (1987) Inheritance of Aflatoxin B1 Levels in Maize Kernels under Modified Natural Inoculation with Aspergillus flavus. Crop Science, 27 (5). pp. 869-872.
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Abstract
Twenty-one F1 hybrids that had been used in previous studies, together with their 7 inbred parents, were grown at 5 sites in the southeastern USA where the likelihood of natural contamination by A. flavus was high. Natural contamination was enhanced by spraying conidia of A. flavus on the silks. Aflatoxin contamination showed highly significant differences among genotypes and environments, mean aflatoxin B1 content ranging from 54 to 1788 µg/kg at different sites. The general combining ability mean square for aflatoxin B1 content was significant. Evidence was found for genetic resistance based on factors associated with the outer integuments of developing grains, and with other ear parts. Comparison of relative aflatoxin contents (measured by inbred line means, F1 values per se and estimates of general combining ability effects) with those obtained in earlier studies using the pinboard method of inoculation revealed a negative relationship. The modified natural inoculation method used in this study is considered more reliable than methods involving grain wounding for assessment of field resistance to aflatoxin production
| Item Type: | Article |
|---|---|
| Additional Information: | SNNigam collections |
| Author Affiliation: | USDA-ARS, Univ. Missouri, Columbia, MO 65211, USA. |
| Subjects: | Plant Protection Crop Improvement |
| Divisions: | Maize |
| Depositing User: | Mr T L Gautham |
| Date Deposited: | 07 Aug 2013 10:43 |
| Last Modified: | 07 Aug 2013 10:43 |
| Official URL: | http://dx.doi.org/10.2135/cropsci1987.0011183X0027... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/11352 |
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