Ghebrial, E., Nada, M. (2017). Suppression of Basil Downy Mildew Caused by Peronospora belbahrii using Resistance Inducers, Mineral Salts and Anti-transpirants Combined with Different Rates of Nitrogen Fertilizer under Field Conditions. test, 45(1), 71-97. doi: 10.21608/ejp.2017.89724
Eman W.R. Ghebrial; Mohamed Nada. "Suppression of Basil Downy Mildew Caused by Peronospora belbahrii using Resistance Inducers, Mineral Salts and Anti-transpirants Combined with Different Rates of Nitrogen Fertilizer under Field Conditions". test, 45, 1, 2017, 71-97. doi: 10.21608/ejp.2017.89724
Ghebrial, E., Nada, M. (2017). 'Suppression of Basil Downy Mildew Caused by Peronospora belbahrii using Resistance Inducers, Mineral Salts and Anti-transpirants Combined with Different Rates of Nitrogen Fertilizer under Field Conditions', test, 45(1), pp. 71-97. doi: 10.21608/ejp.2017.89724
Ghebrial, E., Nada, M. Suppression of Basil Downy Mildew Caused by Peronospora belbahrii using Resistance Inducers, Mineral Salts and Anti-transpirants Combined with Different Rates of Nitrogen Fertilizer under Field Conditions. test, 2017; 45(1): 71-97. doi: 10.21608/ejp.2017.89724

Suppression of Basil Downy Mildew Caused by Peronospora belbahrii using Resistance Inducers, Mineral Salts and Anti-transpirants Combined with Different Rates of Nitrogen Fertilizer under Field Conditions

Egyptian Journal of Phytopathology
Article 6, Volume 45, Issue 1, June 2017, Pages 71-97    PDF (753.85 K)
Document Type: Original Article
DOI: 10.21608/ejp.2017.89724
Authors
Eman W.R. Ghebrial* ; Mohamed Nada
Plant Pathology Research Institute, Agricultural Research Center, 12619, Giza, Egypt.
Abstract
Field experiments were carried out under natural infection of basil downy mildew in the Experimental Farm of Sids Agricultural Research Station, Agric. Res. Center, Beni-Sweif governorate during 2015 and 2016 growing seasons in order to evaluate the efficacy of different compounds of resistance inducers, mineral salts and antitranspirants applied on sweet basil plants (Balady variety) as foliar spray combined with two rates of nitrogen fertilizer for controlling basil downy mildew caused by Peronospora belbahrii. In general, all treatments had a positive effect on the reduction of disease severity with significant increase in fresh and dry weights of herb and essential oil yield at the end of experiment. The high efficacies of the tested compounds were observed when nitrogen was applied at the recommended rate. Chitosan (0.05 %), di-potassium phosphate (20 mM) and potassium silicate (20 mM) in addition to the fungicide Stone 50 % were the most effective in this concern. Furthermore, plants sprayed with each of chitosan, di-potassium phosphate and potassium silicate showed significant increases in the defence-related enzymes, peroxidase (POD) and phenylalanine ammonia-lyase (PAL) as compared with the untreated basil plants
Keywords
Anti-transpirants; chitosan; defence-related enzymes; dipotassium phosphate; downy mildew; mineral salts; nitrogen fertilizer; potassium silicate; resistance inducers and sweet basil
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