Identification of Barley Lines with Resistance to Powdery Mildew Based on Seedling and Adult Plant Responses

Autor:	Mohammed Jawhar, E. Al-Shehadah, Mohammed Imad Eddin Arabi
Rok vydání:	2020
Předmět:	Horticulture biology Resistance (ecology) Seedling Insect Science food and beverages Identification (biology) Plant Science biology.organism_classification Powdery mildew
Zdroj:	Acta Phytopathologica et Entomologica Hungarica. 55:3-10
ISSN:	1588-2691 0238-1249
DOI:	10.1556/038.55.2020.001
Popis:	Powdery mildew (Blumeria graminis) is a major fungal disease of barley causing economical yield losses worldwide. Breeding for resistance to this disease is crucial due to the rapid change in pathotype patterns of B. graminis in fields. In the present work, powdery mildew-resistant barley germplasm was developed by crossing four cultivars currently used in Europe and West Asia. Out of 265 doubled haploid lines derived from these crosses, 40 lines were evaluated at seedling and adult stages. Data showed significant differences among barley lines with a continuum of resistance levels ranging from highly susceptible to tolerant which were consistent during the two growth stages. Two promising lines were more tolerant to powdery disease than the others. Across lines, there was a high correlation between field and greenhouse reaction (r=0.80, PB. graminis in Mediterranean and similar environments.
Databáze:	OpenAIRE
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