Host range and cross inoculation studies on Macrophomina phaseolina from sunflower

M.SURIACHANDRASELVAN; K.E.A. AIYYANATHAN  AND R.VIMALA

doi:https://doi.org/10.29321/MAJ.10.A00040

Madras Agricultural Journal

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Host range and cross inoculation studies on Macrophomina phaseolina from sunflower

Author: M.SURIACHANDRASELVAN, K.E.A. AIYYANATHAN AND R.VIMALA,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 92, Issue: apr-jun,

DOI:https://doi.org/10.29321/MAJ.10.A00040

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Abstract

M. Phaseolina isolated from sunflower infected all the 22 plants tested but failed to infect finger millet, pearl millet, haryali, nutgrass, mookkuthipoondu and saranai. M. phaseolina isolates from sunflower, blackgram, greengram, cowpea, sesame and cotton were cross pathogenic. Sunflower and blackgram isolates were the most aggressive while those of sesame and cotton were the least virulent. There was a positive correlation between M. phaseolina infection and the crop plants belonging to botanical families Fabaceae, Pedaliaceae, Asteraceae and Malvaceae.

Keywords: Macrophomina phaseolina, Host range, Cross infection

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