Vol. 7, Issue 4 (2019)
Management of alternaria blight of sunflower caused by Alternaria helianthi
Author(s): Akash I Pathare, RJ Choudhari and ST Ingle
Abstract: The present investigation was field experiment conducted during kharif 2016 on the field of Oilseeds research unit Dr. Panjabrao Deshmukh Krishi Vidyapith, Akola in Randomized Block Design with Morden, a highly susceptible variety to Alternaria leaf blight. The results obtained under in vitro efficacy of four fungicides against Alternaria helianthi revealed that the maximum inhibition of the test pathogen recorded in propiconazole @ 0.1% (91.66%) this was followed by carbendazim @ 0.2% (88.26%). The results of in vitro evaluation of three fungal and one bacterial bio-agents against Alternaria helianthi, among them Trichoderma viride mutant M1 was found most effective which recorded maximum growth inhibition (81.64%) of the test pathogen over control (00.00%). This was followed by Trichoderma viride mutant M2 (76.18%), T. viride mother culture (67.2%) and P. fluorescens (59.44%). Highest seed yield (1227 kg/h) was also recorded in treatment T3 (seed treatment with carbendazim 75 WP @ 2 g/kg seeds + spray of propiconazole 25 EC @) 0.1% as soon as disease appears and 15 days later) with 48.61% increase the seed yield over control. This was followed by treatment T1 (seed treatment with Trichoderma viride @ 4 g/kg seed + spray of propiconazole 25 EC @ 0.1% as soon as disease appears and 15 days later) i.e. 1154 kg/h seed yield with 45.37% increase seed yield over control.
Pages: 1115-1118 | 453 Views 94 Downloads
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How to cite this article:
Akash I Pathare, RJ Choudhari, ST Ingle. Management of alternaria blight of sunflower caused by Alternaria helianthi. Int J Chem Stud 2019;7(4):1115-1118.
