Integrated management of charcoal rot disease in susceptible genotypes of mungbean with soil application of micronutrient zinc and green manure (prickly sesban).

Autor: Shoaib A; Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore, Pakistan., Khan KA; Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore, Pakistan., Awan ZA; Department of Plant Pathology, Faculty of Agricultural Sciences, University of the Punjab, Lahore, Pakistan., Jan BL; Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia., Kaushik P; Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Valencia, Spain.
Jazyk: angličtina
Zdroj: Frontiers in microbiology [Front Microbiol] 2022 Jul 25; Vol. 13, pp. 899224. Date of Electronic Publication: 2022 Jul 25 (Print Publication: 2022).
DOI: 10.3389/fmicb.2022.899224
Abstrakt: Charcoal rot disease is incited by the soil-borne fungus Macrophomina phaseolina (Tassi). Goid is a challenging disease due to long-term persistence of fungus sclerotia in the soil. This study assessed the potential of zinc (Zn: 1.25, 2.44, and 5 mg/kg) and green manure (GM: 1 and 2%) in solitary and bilateral combinations to alleviate infection stress incited by M. phaseolina on disease, growth, physiology, and yield attributes in mungbean. A completely randomized design experiment was conducted in potted soil, artificially inoculated with the pathogen, and sown with surface-sterilized seeds of mungbean genotypes (susceptible: MNUYT-107 and highly susceptible: MNUYT-105). Concealment of plant resistance by M. phaseolina in both genotypes resulted in 53-55% disease incidence and 40-50% plant mortality, which contributed in causing a significant reduction of 30-90% in attributes of growth, biomass, yield, photosynthetic pigment, and total protein content with an imbalance of production of antioxidant enzymes (polyphenol oxidase, superoxide dismutase, catalase, and peroxidase). Soil application with Zn-based fertilizer (ZnSO 4 : 33%) in combination with GM significantly managed up to 80% of the charcoal rot disease, hence improving growth (50-100%) and physiochemical (30-100%) attributes and sustainably enhancing grain average yield (300-600%), biological yield (100-200%), and harvest index (100-200%) in mungbean plants. The heat map and principal component analyses based on 19 measured attributes with 16 treatments separated Zn (2.44 or 5 mg/kg) combined with 2% GM as the best treatments for alleviating charcoal rot disease stress by improving growth, yield, and biological attributes to an extent to profitable farming in terms of harvest index (HI) and benefit-cost ratio (BCR).
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
(Copyright © 2022 Shoaib, Khan, Awan, Jan and Kaushik.)
Databáze: MEDLINE
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