Vol. 5, Issue 5 (2017)
Evaluation of non-conventional chemicals for the management of Alternaria blight disease of mustard
Author(s): Rakesh, Anil Kumar, Pavitra Kumari and AS Rathi
Abstract: Alternaria blight of mustard incited by Alternaria brassicae (Berk.) Sacc.) Is one of the most devastating fungal disease which causing significant yield losses. The aim of this study was to evaluate the fungicidal effect of non-conventional chemicals viz., salicylic acid (SA), acetyl salicylic acid (ASA), indole acetic acid (IAA), indole butyric acid (IBA), zinc sulfate (ZnSo4) and magnesium sulfate (MgSo4) against alternaria blight disease of mustard. The experiment was carried out through poison food technique under in vitro and through foliar spray under screen house conditions. Salicylic acid inhibited mycelial growth up to 49.2 per cent at 150µg/ml concentration followed by indole acetic acid which inhibited the fungal growth up to 41.7 per cent at 150µg/ml concentration. Zinc sulphate was found least effective among all six non-conventional chemicals, as this chemical inhibited 1.1 per cent of mycelial growth even at 100µg/ml concentration. Screen house experiment was conducted to test the efficacy of these non-conventional chemicals. A maximum control of 24.5 per cent was recorded by salicylic acid at 100µg/ml concentration after six weeks of challenge inoculation by the pathogen followed by indole acetic acid, as it controlled the disease 22.9 per cent at 100µg/ml concentration in cv. RH 30.
Pages: 2155-2158 | 793 Views 66 Downloads
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How to cite this article:
Rakesh, Anil Kumar, Pavitra Kumari, AS Rathi. Evaluation of non-conventional chemicals for the management of Alternaria blight disease of mustard. Int J Chem Stud 2017;5(5):2155-2158.
