Vol. 6, Issue 5 (2018)
Assessment of promising genotypes of pigeonpea against dry root rot disease caused by Rhizoctonia bataticola Taub
Author(s): Ajithkumar K, Savitha AS and Hanumanthappa Shrihari
Abstract: Thirty three promising medium duration genotypes of pigeonpea including resistant and susceptible check each, were screened through paper towel method for two years (2015 and 2016) to identify sources of resistance against dry root rot. In pigeonpea dry root rot disease is incited by Rhizoctonia bataticola (Taub.) Butler [Pycnidial stage: Macrophomina phaseolina (Tassi) Goid], is a soil borne fungal pathogen and one of the most destructive soil borne plant pathogen in the world. On the basis of wilting of the plants, discoloration of root as well as rotting of root system, genotypes GRG-820 and GRG-811 were found to be least susceptible (Disease Index 1), while eight genotypes ICP-14832, BDN-2008-8, AGL-1666, AGL-1919, AGL-2013, ICP-8793, AGL-1603 and GRG-177 were ascertained with resistant reaction for dry root rot having disease rating of 3 over the susceptible check cultivar (ICP-13101).
Pages: 2282-2284 | 356 Views 79 Downloads
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How to cite this article:
Ajithkumar K, Savitha AS, Hanumanthappa Shrihari. Assessment of promising genotypes of pigeonpea against dry root rot disease caused by Rhizoctonia bataticola Taub. Int J Chem Stud 2018;6(5):2282-2284.
