MICROBIAL CONSORTIA FOR MANAGEMENT OF OKRA ROOT ROT INCITED BY MACROPHOMINA PHASEOLINA (TASSI) GOID.
DOI:
https://doi.org/10.48165/jpds.2023.1802.13Keywords:
Okra,, Root rot, biocontrol agents, Macrophomina phaseolinaAbstract
Okra [Abelmoschus esculentus (L.) Moench]is the only vegetable cropof significance in the Malvaceae family and isvery popular in the Indo-Pak subcontinent. In India, it ranks first in its consumption. The crop was found to suffer from stem and root rot disease in severe form in many region of Gujarat state during Kharif, 2021. So for its management different biocontrol agents evaluated under field condition, recorded minimum disease incidence 17.88 % was recorded in T. viride @ 2.5kg/ha +fluorescens @ 2.5kg/ha+ 300 kg FYMwhich was found at par with T. harzianum@ 2.5kg/ha+ P. fluorescens@ 2.5kg/ha + 300 kg FYM with 22.07 per cent disease incidence and the highest yield (100.99 q/ha) was obtained in T. viride @ 2.5kg/ha +P. fluorescens @ 2.5kg/ha+ 300 kg FYM, which was statically at par with T. harzianum@ 2.5kg/ha+ P. fluorescens@ 2.5kg/ha + 300 kg FYM(94.65 q/ha).
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Madhi, Q. H., G. M. Daghir and A. M. Jummaah, 2020
:Investigation of the causes of root rot and damping-off diseases of okra and testing the effectiveness of Pseudomonas fluorescens in disease control. Plant Arch.,20(1): 1361-1366.
Mayek, P. N., C. Lopez-Castaneda, M. Gonzalez- Chavira, R. Garch Espinosa, J. Acosta-Gallegos, O.
M. De la Vega, and J. Simpson, 2001: Variability of Mexican isolates of M. phaseolina based on pathogenesis and AFLP genotype. Physiol. Mol. Plant Pathol., 59(5): 257–264.
Pancham, A., Meena, A. K. Bimla, 2016: Study of biochemical changes viz., total sugars (reducing and non-reducing), proteins and phenols in dry root rot infected groundnut plant. Ann. Biol.,32(2): 188-192.
Prasad, P. and M. N. Reddy, 1987: Influence of nitrogen fertilizers on incidence of sheath rot disease of paddy. Plant Sci., 88(3): 249-252.
Rangaswami, G., 1993: Diseases of Crop Plants in India. Hall of India Pvt. Ltd., New Delhi, India. pp. 520.
Reddy, M. N. and C. H. Sireesha, 2013: Role of ox id at ive en zyme s a nd bi oc hemi c al constituents in imparting resistance to groundnut (Arachis hypogaea L.) against stem rot disease caused by Sclerotium rolfsii. Bioresearch Bulletin, pp. 036-041.
Snell, F. D. and C. T. Snell, 1953: Colorimetric methods of analysis including some turbidimetric and nephelometric methods. David van Nostrand incorporated company princeton, New Jersey, Toronto, Newyork, London, 3(1): 116-117.
Wheeler, B. E. J., 1969: An Introduction to Plant Disease and Fungi. John Wiley and Sons Limited, London. pp. 301.
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