EFFICACY OF FUNGICIDES AGAINST FALSE SMUT OF RICE CAUSED BY USTILAGINOIDEA VIRENS

M.B. THAKUR¹*, MD REYAZ AHMAD^2
1Veer Kunwar Singh College of Agriculture, Dumraon (Buxar), 802136, Bihar Agricultural University, Sabour, Bhagalpur, 813210, Bihar, India
²Veer Kunwar Singh College of Agriculture, Dumraon (Buxar), 802136, Bihar Agricultural University, Sabour, Bhagalpur, 813210, Bihar, India
* Corresponding Author : mbtphd@gmail.com

Received : 04-04-2019     Accepted : 19-04-2019     Published : 30-04-2019
Volume : 11     Issue : 4       Pages : 1538 - 1539
Int J Microbiol Res 11.4 (2019):1538-1539

Keywords : Rice, False smut, Ustilaginoidea virens and Fungicides
Academic Editor : Amit Fulzele
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to IIRAS for financial assistance as well as BAU Sabour Bhagalpur. Authors are also thankful to Veer Kunwar Singh College of Agriculture, Dumraon (Buxar), 802136, Bihar Agricultural University, Sabour, Bhagalpur, 813210, Bihar, India
Author Contribution : All authors equally contributed

Rice (Oryza sativa) being the staple food crop in most of the countries under varying climate condition. Domestication of this crop invited many diseases and disorders incited by biotic and abiotic factors. Amongst the biotic factors, false smut of rice emerges in the seventies under influence of high yielding nutrition responsive varieties needed to get it managed by the application of different group of fungicides in proper dose at appropriate time. Kresoxyme methyl, Propiconazole and Carbendazim proved themselves well at all concentrations in inhibition of mycelial growth of Ustilaginoidea virens in vitro. Standardised dose of test fungicides were validated in the field at appropriate critical stages of crop growth. Kresoxyme methyl treated paddy plot showed least percent spikelet and panicle infection as 1.62 and 2.58 respectively with a severity of 3.08 percent yielded maximum yield of 49.50 q/ha followed by Propiconazole, Carbendazim and Mancozeb. Moreover, treatment of Mancozeb, Chlorothalonil and copper oxychloride showed nonsignificant reduction in percent infection of panicle, percent infected spikelet per panicle and disease severity as well as increase in yield over control.

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