International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (838) Last page : (845)
Article doi: http://dx.doi.org/10.18782/2320-7051.5442
Survey and Occurrence of Sheath Blight of Rice in Major Rice Growing Areas of Chhattisgarh
Rathod Parshuram1, Subhash Chandra Yadav1, G. K. Awadhiya1, M. Srinivas Prasad2 and
V. Prakasam2*
1Department of Plant Pathology, Indira Gandhi Krishi Vishwavidhyalaya, Raipur-492012, Chhattisgarh, India
2Department of Plant Pathology, ICAR- Indian Institute of Rice Research, Hyderabad-500030
*Corresponding Author E-mail: vprakasam.iari@gmail.com
Received: 7.08.2017 | Revised: 12.08.2017 | Accepted: 13.08.2017
ABSTRACT
Among the various disease of rice, sheath blight caused by Rhizoctonia solani Kuhn has become the one of major fungal disease covering different rice growing ecosystem of Chhattisgarh state. For the first time in Chhattisgarh state purposive disease survey was conducted during Kharif-2016 to know the occurrence and spread of sheath blight disease in three different ecosystems i.e. Northern Hills Zone (Zone-I), Chhattisgarh Plains Zone (Zone-II) and Bastar Plateau Zone (Zone-III). Systematically, survey was conducted in twelve major rice growing districts viz., Balrampur, Surguja, Raighar, Mungeli, Kawardha, Bemetara, Baloda Bazar, Durg, Rajnandgaon, Raipur, Gariyaband and Bastar from September to October 2016. Among the twelve districts surveyed, disease incidence (%) was found highest in Gariyaband district with a mean disease incidence of 76% which is followed by Surguja (60%), Balrampur (50%), Raigarh (50%), Raipur (47.5%), Rajnandgaon (41.6%), Mungeli (30%), Kawardha (30%), Durg (30%), Baloda Bazar (30%), Bemetara (30%) and Bastar (30%). The heavy incidence of sheath blight might be due to the highly favorable factors like high relative humidity, less temperature and water stagnation due to continuous rain on these locations during the period of survey. Large scale cultivation of susceptible varieties as mono crop continuously on the same field might have increased the possibility of perpetuating the pathogen in the crop debris. This study can serve as basic to evaluate location specific integrated disease management strategy against sheath blight disease of rice.
Key words: Sheath blight, Disease incidence, Chhattisgarh.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Parshuram, R., Yadav, S.C., Awadhiya, G.K., Prasad, M.S. and Prakasam, V., Survey and Occurrence of Sheath Blight of Rice in Major Rice Growing Areas of Chhattisgarh , Int. J. Pure App. Biosci.5(4): 838-845 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5442
