International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 5
First page : (478) Last page : (487)
Article doi: http://dx.doi.org/10.18782/2320-7051.3003
Morphological and Pathogenic Variability of Seclerotium rolfsii Isolates Causing Stem Rot in Groundnut
Y. Chandra Sekhar1*, S. Khayum Ahammed2, T.N.V.K.V. Prasad3 and R. Sarada Jayalakshmi Devi4
1Department of Plant Pathology, S.V. Agricultural College, Acharya N G Ranga Agricultural University, Tirupati - 517 502
2Regional Agricultural Research Station, Acharya N G Ranga Agricultural University Nandyal – 518 502
3Nanotechnology laboratory, Institute of Frontier Technology, Regional Agricultural Research Station,
Acharya N G Ranga Agricultural University, Tirupati - 517 502
4University Librarian, Acharya N G Ranga Agricultural University, Lam, Guntur - 522034
*Corresponding Author E-mail: chandu.008y@gmail.com
Received: 22.05.2017 | Revised: 26.06.2017 | Accepted: 30.06.2017
ABSTRACT
Variability among 10 isolates of Sclerotium rolfsii collected from various soil samples and localities in Chittoor district of Andhra Pradesh. The isolates varied in colony morphology, Colony colour, Appearance, mycelial growth rate, Site of production, Number of sclerotial per plate,Time taken for sclerotial production, Colour of selerotium. Mycelial incompatibility and computability among the isolates was also seen out of 100 combinations, Pathogenicity test was conducted for all the 10 isolates and isolate S.r-9 exhibited maximum disease incidence within 6 days and proved to be more virulent
Key words: Sclerotium rolfsii, Variability, Pathogenicity
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Sekhar, Y.C., Ahammed, S.K., Prasad, T.N.V.K.V. and Jayalakshmi Devi, R.S., Morphological and Pathogenic Variability of Seclerotium rolfsii Isolates Causing Stem Rot in Groundnut, Int. J. Pure App. Biosci.5(5): 478-487 (2017). doi: http://dx.doi.org/10.18782/2320-7051.3003
