Vol. 7, Issue 2 (2019)
Effect of spore suspension of pathogen causing diseases on Cuscuta gronovii parasitized on black gram and lablab bean
Author(s): VR Bangar, JJ Kadam, HT Valvi and AD Saykar
Abstract: Cuscuta is a phanerogamic plant parasite and complete stem parasite of various cultivated pulses. In view to biological management of such serious plant parasite, C. gronovii parasitized on two pulse host plants such as black gram and Lablab bean were inoculated with different concentration of spore suspension of previously isolated pathogens. At 21 DAI, the maximum disease severity (85.33 per cent) on C. gronovii was recorded by Alternaria dianthicola @ 2 x 105 spores per ml concentration when Cuscuta parasitizing black gram. Fusarium incarnatum @ 2 x 105 which showed 84.67 per cent disease severity on Cuscuta parasitized on black gram and the host plant reaction was immune against pathogen. The results of present study proved that concentration of spore suspension (2×105) of A. dianthicola and F. incarnatum were very effective to cause diseases on C. gronovii particularly when Cuscuta parasitized on black gram host plant. This is probably due to the fact that, fungi like A. dianthicola and F. incarnatum are capable or potential to infect C. gronovii i.e. pathogenic to Cuscuta but non-pathogenic to black gram. These concentrations of spore suspension of pathogens (fungi) act as a mycoherbicide or bioherbicide and applicable to control or manage C. gronovii parasitized on black gram plants effectively but in case of C. gronovii parasitized on Lablab bean, these concentrations of spore suspensions were not applicable to manage Cuscuta parasitized on Lablab bean plants due to susceptible host reaction.
Pages: 1889-1894 | 355 Views 52 Downloads
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How to cite this article:
VR Bangar, JJ Kadam, HT Valvi, AD Saykar. Effect of spore suspension of pathogen causing diseases on Cuscuta gronovii parasitized on black gram and lablab bean. Int J Chem Stud 2019;7(2):1889-1894.
