Anti-Contamination of Pathogenic Fungi on Post-Harvest Wheat Grains | ||||
| Egyptian Journal of Phytopathology | ||||
| Article 12, Volume 42, Issue 2, December 2014, Page 187-196 PDF (136.43 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejp.2014.95593 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Somaya Mohamed* ; Shadia Abd-El-Aziz; Azza Naffa | ||||
| Plant Pathol. Res. Inst., A.R.C., Giza, Egypt | ||||
| Abstract | ||||
| During growing seasons of 2012 and 2013, wheat plants were treated 30-day pre-harvesting, with three salts, i.e. sodium chloride, potassium chloride and sodium metasilicate and three antioxidants, i.e. salicylic acid, humic acid and ascorbic acid as well as four essential oils, i.e. garlic, thyme, cumin and eucalyptus, and the fungicide Tilt. Harvested grains were evaluated for contamination with Alternaria alternata, Aspergillus niger and A. flavus during storage at 20±5oC for six months. Results showed that all treatments significantly decreased the endograins contamination during storage. The highest efficacy was induced by garlic, sodium metasilicate, cumin and potassium chloride compared with the check treatment. Grains contamination (%) in oils treatments ranged from 0.0 to13.3, meanwhile it was 3.33 to 23.33 for salts and 7.77 to 17.77 for antioxidants. Also, results showed that the crude fungal filtrates of the three fungi completely inhibited the roots linear growth compared with the untreated check. Moreover, germination of grains treated with the three dilutions of fungal filtrates (1:1, 1:2 and 1:3) recorded 22.2, 55.5 and 88.8% with A. flavus and 33.3, 55.5, 88.8% with A. niger as well as 33.3, 44.4, 88.8% with A. alternate, respectively. | ||||
| Keywords | ||||
| Wheat grains; Pre-harvest treatments; antioxidants; oil extract; salts and Bio assay toxin | ||||
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