New Strategy for Managing Damping-off and Root Rot Disease of Cucumber Caused by Rhizoctonia solani by Seed Soaking in Formula of Antioxidant with Micronutrients
- *Corresponding Author:
- Mohammad Magdy El-Metwally
Department of Botany and microbiology
Faculty of Science, Damanhour University, Egypt
E-mail: [email protected]
Received date: July 07, 2013; Accepted date: September 06, 2013; Published date: September 12, 2013
Citation: Yousef SAM, El-Metwally MM, Gabr SA, Al-Ghadir AH (2013) New Strategy for Managing Damping-off and Root Rot Disease of Cucumber Caused by Rhizoctonia solani by Seed Soaking in Formula of Antioxidant with Micronutrients. J Plant Pathol Microb 4:196 doi:10.4172/2157-7471.1000196
Copyright: © 2013 Yousef SAM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
of R. solani can be remain viable in soil for several years as important source of primary infection, In our laboratory trails, The soaking of R. solani sclerotia in Potassium tartarate as antioxidant and a mixture of micronutrients for 48 h showed a great reduction in colony diameter reach to 52% with complete inhibition of sclerotia formation after 24 d of incubation. For more investigation, the treated sclerotia examined under SEM which showed germ hyphae alterations, includes, changes in measurements of hyphae, increased branches, reduce length of branches, retardation of the plasmolemma and collapse of cytoplasm.
By application of this formula in greenhouse, the seedling stands up increased by 46.4% on day 6 and 60.9% respectively on day 14 over check ones. In addition to seedlings protection, treatments also improve plant height, fresh weight of shoot and root with clear increase in total phenol contents. In field experiment highest fruit production as well as increase in nitrogen, phosphor, potassium and protein content of fruits. This information sheds new light on environmental factors that influence plant-pathogen interactions, and may be applied to develop a management strategy for R. solani control based on host nutrition.