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Effectiveness of different elicitors in inducing resistance in chilli (Capsicum annuum L.) against pathogen infection.

Awang, Noor Asma’a and Islam, Md Robiul and Ismail, Mohd Razi and Berahim, Zulkarami and Omar, Dzolkhifli (2013) Effectiveness of different elicitors in inducing resistance in chilli (Capsicum annuum L.) against pathogen infection. Scientia Horticulturae, 164 . pp. 461-465. ISSN 0304-4238

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Abstract

The excessive application of pesticides for agricultural production in Malaysia has raised quite some concern about environmental safety and sustainability. To reduce environmental impact of pesticide overuse, there is an increasing interest in using different elicitors to induce disease resistance in crop. Chilli (Capsicum annuum L.), which is an important vegetable cum spice crop in Malaysia, was used to compare the effectiveness of two natural elicitors (jasmonic acid and salicylic acid) with conventional pesticide application as control. The experimental results indicated that pesticide-treated plants showed rapid reduction in disease severity after application while elicitors perform slowly and its effectiveness increase gradually over time. Among the tested elicitors, jasmonic acid was found most effective regarding disease severity and yield of chilli compared with salicylic acid. Although used elicitors was not best performing treatment compared with conventional pesticide, some physiological parameters (relative chlorophyll content, chlorophyll fluorescence and photosynthesis rate) and disease severity in chilli plants treated with jasmonic acid was very close to conventional pesticide. Therefore, jasmonic acid could be a potential elicitor for inducing disease resistance in chilli and salicylic acid may not an appropriate elicitor for chilli.

Item Type:Article
Keyword:Chilli; Disease resistance; Jasmonic acid; Salicylic acid.
Faculty or Institute:Faculty of Agriculture
Institute of Tropical Agriculture
Publisher:Elsevier
DOI Number:10.1016/j.scienta.2013.08.038
Altmetrics:http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.scienta.2013.08.038
ID Code:30801
Deposited By: Norhazura Hamzah
Deposited On:17 Jul 2014 14:37
Last Modified:02 Sep 2015 10:12

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