IDENTIFICATION AND CONTROL OF PATHOGENIC RACES OF Ustilago nuda LOOSE SMUT CAUSAL PATHOGEN OF BARLEY
Mohdly, B., Abd El-Baset, T., Abd El-Ati, M., Gomaa, H. (2023). IDENTIFICATION AND CONTROL OF PATHOGENIC RACES OF Ustilago nuda LOOSE SMUT CAUSAL PATHOGEN OF BARLEY. EKB Journal Management System, 50(1), 67-80. doi: 10.21608/zjar.2023.290100
Badawy R.H. Mohdly; T.E. Abd El-Baset; M.M. Abd El-Ati; Heba G.A. Gomaa. "IDENTIFICATION AND CONTROL OF PATHOGENIC RACES OF Ustilago nuda LOOSE SMUT CAUSAL PATHOGEN OF BARLEY". EKB Journal Management System, 50, 1, 2023, 67-80. doi: 10.21608/zjar.2023.290100
Mohdly, B., Abd El-Baset, T., Abd El-Ati, M., Gomaa, H. (2023). 'IDENTIFICATION AND CONTROL OF PATHOGENIC RACES OF Ustilago nuda LOOSE SMUT CAUSAL PATHOGEN OF BARLEY', EKB Journal Management System, 50(1), pp. 67-80. doi: 10.21608/zjar.2023.290100
Mohdly, B., Abd El-Baset, T., Abd El-Ati, M., Gomaa, H. IDENTIFICATION AND CONTROL OF PATHOGENIC RACES OF Ustilago nuda LOOSE SMUT CAUSAL PATHOGEN OF BARLEY. EKB Journal Management System, 2023; 50(1): 67-80. doi: 10.21608/zjar.2023.290100

IDENTIFICATION AND CONTROL OF PATHOGENIC RACES OF Ustilago nuda LOOSE SMUT CAUSAL PATHOGEN OF BARLEY

Zagazig Journal of Agricultural Research
Volume 50, Issue 1, January and February 2023, Page 67-80  XML PDF (894.04 K)
Document Type: Original Article
DOI: 10.21608/zjar.2023.290100
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Authors
Badawy R.H. Mohdly email 1; T.E. Abd El-Baset1; M.M. Abd El-Ati2; Heba G.A. Gomaa2
1Plant Pathol. Res. Inst., Agric. Res. Cent., Giza, Egypt
2Field Crops Res. Inst., Agric. Res. Cent., Giza, Egypt
Abstract
Identification of Ustilago nuda (Jens.) Rostr., the causal agent of barley (Hordeum vulgare L.) loose smut disease using the Random Amplified Polymorphic (DNA) markers is faster and easier than using of the traditional methods (differential cultivars),where identify physio-logical races may needs several years. Also, at the two locations, Giza and Sakha Agricultural Research Stations, several effectors were tested to find out their effectiveness in ridding the grains of the fungus that resides inside them, i.e. (soaking in some natural oils, exposure to Gamma ray and dressing with some new fungicides). Between nine effectors that were tested, two only (Raxil and Simasol) proved to have the highest degree of efficacy (up to 100%), Hattric and pine oil were the most effective treatments (98.4 and 97.9%, respectively). Gamma radiation at 250 Gy followed by clove oil and castor oil changed reactions to moderately resistant against U. nuda. Infection of barley seed caused significant differences among all studied plant traits.
Keywords
Barley; Loose smut; Ustilago nuda; Fungicides; Gamma ray; Natural oils; Dry and wet; inoculation methods
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