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Nagamma, Gowdra
- Morphological Variability of Macrophomina phaseolina (Tassi) Goid, Causal Agent of Dry Root Rot Disease of Chickpea (Cicer arietinum L.)
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Authors
Affiliations
1 Department of Plant Pathology, University of Agricultural Sciences, GKVK, BENGALURU (KARNATAKA), IN
2 AICRP on Chickpea, Zonal Agricultural Research Station, (UAS, GKVK), BENGALURU (KARNATAKA), IN
3 Department of Plant Pathology, University of Agricultural Sciences, DHARWAD (KARNATAKA), IN
1 Department of Plant Pathology, University of Agricultural Sciences, GKVK, BENGALURU (KARNATAKA), IN
2 AICRP on Chickpea, Zonal Agricultural Research Station, (UAS, GKVK), BENGALURU (KARNATAKA), IN
3 Department of Plant Pathology, University of Agricultural Sciences, DHARWAD (KARNATAKA), IN
Source
International Journal of Plant Protection, Vol 8, No 1 (2015), Pagination: 69-72Abstract
To find out the best sources of nutrients for the fungal growth, different solid media were tested. Maximum radial growth was recorded on PDA and Czapek's agar with mean colony diameter of 90mm and on par with each other compared to other media tested. Carrot agar recorded maximum number of sclerotial production (48 per microscopic field) followed by PDA (46 per microscopic field) and the minimum sclerotial production was observed in Czapek's agar (39.33 per microscopic field). PDA and carrot media supported good mycelial growth and sclerotia production. The maximum sclerotial size was observed in PDA (0.5×0.4 μm) whereas Czapek's agar recorded minimum size of sclerotia (0.3×0.2 μm). Ellipsoidal shape of sclerotia was observed in Czapek's agar whereas, irregular shaped sclerotia were observed in other media. Maximum dry mycelial weight was recorded eighth day of incubation (150mg).Keywords
Chickpea, Macrophomina phaseolina, Sclerotia, Solid Media.
- Efficacy of Biocontrol Agents against Sclerotium rolfsii Causing Collar Rot Disease of Chickpea, under in Vitro Conditions
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Authors
Affiliations
1 Department of Plant Pathology, University of Agricultural Sciences, G.K.V.K., Bangaluru (Karnataka), IN
2 ICAR, G.K.V.K., Bangaluru (Karnataka), IN
1 Department of Plant Pathology, University of Agricultural Sciences, G.K.V.K., Bangaluru (Karnataka), IN
2 ICAR, G.K.V.K., Bangaluru (Karnataka), IN
Source
International Journal of Plant Protection, Vol 8, No 2 (2015), Pagination: 222-227Abstract
Chickpea is known in this country since ancient times. It is a widely grown major pulse crop in India, accounts for nearly 75 per cent of the total pulse production in the world. Chickpea crop is prone to many diseases. Among them, collar rot caused by Sclerotium rolfsii which is gaining importance. S. rolfsii is a soil borne plant pathogen causing ischolar_main rot, stem rot, collar rot, and foot rot diseases on more than 500 plant species of agricultural and horticultural crops throughout the world. Most of the first symptom associated with S. rolfsii are usually yellowing and wilting of leaves following collar rot infections. Pathogenecity was proved by Koch's postulates. Biological management of the disease through antagonists is an eco-friendly approach apart from better alternative to the use of chemicals. In the present study, the nine antagonistic microorganisms were evaluated by dual culture technique for their antagonistic effect against S. rolfsii under in-vitro conditions. Maximum inhibition of mycelial growth (71.67%) was noticed in T. harzianum (Bacteriology lab isolate) which was followed by T. viride (Microbiology lab) (63.33%). Least inhibition was observed in T. harzianum GKVK isolate (31.67%). The results indicated that the application of these micro-organisms successfully decreases the stem rot incidence and also increases the growth of the chickpea plants.Keywords
Chickpea, Collar Rot, Sclerotium rolfsii, Biological Control, Trichoderma.References
- Aycock, R. (1966). Stem rots and other disease caused by Sclerotium rolfsii North Carolina. Agricultural Experiment Station Technical Bulletin No. 174, p. 202.
- Basamma, (2008). Integrated management of Sclerotium wilt of potato caused by Sclerotium rolfsii Sacc.M.Sc. (Ag.) Thesis, University of Agricultural Sciences, Dharwad (KARNATKA) INDIA.
- Burgess, L.W. and Griffin, D.M. (1967). Competitive saprophytic colonization of wheat straw. Annu. Appl. Biol., 60: 137-42.
- Campbell, R. (1989). Biological control of microbial plant pathogen. Cambridge University Press, Cambridge, pp 8-24.
- Cook, R.J. (1993). Making greater use of introduced microorganisms for biological control of plant pathogens. Annu. Rev. Phytopathol., 31: 53-80.
- Cook, R.J. and Baker, K.F. (1983). The nature and practice of biological control of plant pathogens. In: American Phytopathological Society St. Paul, Minnesota, 539 pp.
- Dennis, C. and Webster, J. (1971). Antagonistic properties of species groups of Trichoderma I. Production of non-volatile antibiotics. Trans. Brit. Mycol. Soc., 57 : 25-39.
- Dutta, B.K. (1981). Studies on some fungi isolated from the rhizosphere to tomato plants and the consequent prospect for the control of Verticillium wilt. Pl. Soil, 63: 209-216.
- Ekefan, E.J., Jama, A. and Gowen, S.R. (2009). Potential of Trichoderma harzianium isolates in biocontrol of Colletotrichum capsici causing anthracnoac of pepper (capsicum spp) in Nigeria. J. Appl. Biosci., 20:1138-1145.
- Higgins, B.B. (1927). Physiology and parasitism of Sclerotium rolfsii Sacc. Phytopathology, 17: 417-448.
- Manu, T.G. (2012). Studies on Sclerotium rolfsii (Sacc.) causing foot rot disease on finger millet M.Sc. (Ag.) Thesis, Universigy of Agricultural Sciences, Bangalore, KARNATAKA (INDIA). pp. 1-76.
- Morang, P., Dutta, B. K., Ranjita, A. and Dileep, B. S. (2013). Antagonistic potential of some isolated fungi against brown ischolar_main rot disease of tea in Barak Valley of Assam. Pure & Appl. Microbiol., 7(1): 711-716.
- Parmar, H. J., Mohamed, M. H., Bodar, N. P., Umrania, V. V.Patel, S.V. and Lakhani, H.N. (2015). In vitro antagonism between phytopathogenic fungi Sclerotium rolfsii and Trichoderma Strains. Internat. J. Appl .Sci. Biotechnol., 3 (1) : 16-19.
- Ponnusamykonar, P., Venkitasamy, K. and Varatharajan, P. (2011). In vitro study of antagonistic effect of Trichoderma sp., on tea plant pathogen, Phomopsis theae. Arch. Appl. Sci. Res., 3 (4) : 352-358.
- Punja, Z.K. (1985). The biology, ecology and control of Sclerotium rolfsii. Annu. Rev. Phytopathol., 23 : 97-127.
- Rangaswami, G. (1988). Diseases of crop plants in India. Prentice Hall of India Pvt. Ltd., New Delhi, pp 498.
- Rolfs, P.H. (1892). Tomato blight. Some hints. Bull. Florida Agric. Exp. Stn., pp.18.
- Upadhay, J.P. and Mukhyopadhayay, A.N. (1986).Biological control of Sclerotium rolfsii by Trichoderma harzianum in Sugrbeet. Indian phytopathol., 39 : 394-396.
- Vincent, J.M. (1947). Distortion of fungal hyphae in the presence of certain inhibitors. Nature, 150 : 850.