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Journal of Environmental Science and Technology
  Year: 2015 | Volume: 8 | Issue: 6 | Page No.: 266-277
DOI: 10.3923/jest.2015.266.277
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Antioxidants for Controlling Common Seed-Borne Fungi Attacking Cotton Plants and Scaling up Both Yield and Fiber Quality

M.A. Elwakil, M.A. El-Metwally and Doaa S. Sleem

There are many fungi could be isolated from cotton seeds. In this research the following fungi were isolated: Alternaria alternate, Aspergillus flavus, Aspergillus niger, Aspergillus ochraceous, Cephalosporium sp., Fusarium moniliforme, Fusarium oxysporum, Fusarium semitectum, Fusarium solani, Penicillium sp., Rhizoctonia solani, Rhizopus sp., Stemphylium sp., Trichothecium sp. and Verticillium sp. Pathogenicity test showed that Fusarium oxysporum, Fusarium solani, Fusarium moniliforme and Rhizoctonia solani were the most devastative fungi on cotton seeds. The use of trisodium orthophosphate (1.9 g L–1) significantly, reduced the incidence of the ungerminated seeds, post-emergence damping off and the abnormal seedlings. Soaked seeds prior to the sawing followed by 3 times of spraying cotton seedlings with the target antioxidant or formulated antioxidants GAWDA® formulation at the rate of 2.2 g L–1 significant increased the contents of chlorophyll a, b, carotenoid and total phenols in the plant leaves at the age of (30, 45, 60, 75) days old. Plant height, shoot and root lengths, shoot and root weights, number of cotton bolls, number of branches% and weight of bolls were increased by 30.05, 29.90, 80.34, 82.20, 86.53, 121.08, 168.80, 242.96 and 140.54%, respectively. Plant dry weight was increased by 82.24%, cotton seed yield by 142.77% and lint cotton was increased by 22.09%. The quality of the cotton fibers including; Micronair, length (mm) UHM, Regularity %, Durability gm/tex, Elongation%, the degree of color reflection (Rd) and the degree of yellowing b+ were also increased by 19.49, 4.00, 6.36, 16.95, 9.35, 11.86 and 6.49%, respectively. These results are persuasive evidence directed to cotton growers to apply this method for controlling seed-borne fungi of cotton, improve cotton yield, promote the quality of the cotton fibers, as well as increase the seed cotton production and subsequently the extracted oil.
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  •    Prevalence and Transmission of Seed-borne Fungi of Maize and Their Control by Phenolic Antioxidants
  •    Green Chemicals for Controlling Soil-Borne Fungi Attacking Potato Plants and Produce Quality Tubers
  •    The Use of Antioxidants and Microelements for Controlling Damping-Off Caused by Rhizoctonia solani and Charcoal Rot Caused by Macrophomina phasoliana on Sunflower
  •    Hydroquinone, A Promising Antioxidant for Managing Seed-borne Pathogenic Fungi of Peanut
  •    Use of Antioxidant Hydroquinone in the Control of Seed-borne Fungi of Peanut with Special Reference to the Production of Good Quality Seed
How to cite this article:

M.A. Elwakil, M.A. El-Metwally and Doaa S. Sleem, 2015. Antioxidants for Controlling Common Seed-Borne Fungi Attacking Cotton Plants and Scaling up Both Yield and Fiber Quality. Journal of Environmental Science and Technology, 8: 266-277.

DOI: 10.3923/jest.2015.266.277






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