Enhancement of growth, defense response in brinjal and inhibitory potential of salicylic acid against Fusarium oxysporum f. sp. melongenae

Authors

  • BANU NAZIYA* and M.S. SHARADA

Abstract

The present study was carried out to evaluate the effects of salicylic acid in enhancement of growth, defense response and inhibition of colony growth of the Fusarium oxysporum f. sp. melongenae under in vitro conditions. The collected seed samples were primed with different concentrations of salicylic acid for 3 h to assess its effect on brinjal seed germination and seedling vigor using paper towel method. Inhibitory effect of salicylic acid was also tested against Fusarium oxysporum f. sp. melongenae using poisoned food technique. Hypersensitive response in salicylic acid treated seedlings was also studied. Among salicylic acid treatments, 20 mM concentration for 3 h duration recorded maximum seed germination of 95% and seedling vigour of 874.6 over non-treated control. In addition, the treatment also stood best in inhibiting mycelial growth of the pathogen under in vitro conditions and showed enhanced hypersensitive response in treated seedlings. Thus, the study suggested that salicylic acid at 20 mM concentration proved to be good in enhancement of seedling growth with significant inhibition of pathogen growth and also enhanced hypersensitive response in brinjal seedlings inoculated with Fusarium wilt pathogen under in vitro conditions.

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Published

2017-07-24

Issue

Vol. 70 No. 3 (2017): Indian Phytopathology

Section

Short Communications

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How to Cite

M.S. SHARADA, B. N. and. (2017). Enhancement of growth, defense response in brinjal and inhibitory potential of salicylic acid against Fusarium oxysporum f. sp. melongenae. Indian Phytopathology, 70(3), 391-393. http://epubs.icar.org.in/ejournal/index.php/IPPJ/article/view/72501