Effect of some chemical inducers on chocolate spot disease of faba bean in Tunisia

Q3 Agricultural and Biological Sciences Journal of Crop Protection Pub Date : 2016-11-03 DOI:10.18869/MODARES.JCP.5.4.541
A. Mbazia, N. O. B. Youssef, M. Kharrat
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引用次数: 8

Abstract

Botrytis fabae is one of the most important fungal pathogens attacking the leaves and the stem of faba bean Vicia faba L. and causes severe yield losses. This study was carried out to evaluate the effect of four chemical inducers (salicylic, citric, ascorbic and oxalic acids) and one fungicide (Carbendazim) against B. fabae in field and glasshouse conditions. Under field conditions for two seasons and glasshouse experiments, plants treated with salicylic acid showed substantial and significant decrease in the disease severity on the leaves and the stem compared with the control and the fungicide. Salicylic acid was highly effective and controlled the disease better than Carbendazim which provided only partial protection. In vitro, the inhibition of fungal growth was investigated and showed that salicylic acid was the best inhibitor of fungal growth (48%) followed by oxalic (39%), ascorbic (33%) and citric (10%) acids 6 days after incubation. An important increase of total phenols was recorded in treatment by salicylic acid in the healthy and infected leaves of faba bean 12, 24, 48, 72, 96 and 120 hours after inoculation. These promising results on the control of the main fungal disease damaging faba bean in Tunisia and other regions will have an important impact on faba bean production.
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几种化学诱导剂对突尼斯蚕豆巧克力斑病的防治效果
豆芽孢杆菌(Botrytis fabae)是侵染蚕豆(Vicia faba L.)叶和茎的重要真菌病原体之一,造成严重的产量损失。在田间和温室条件下,研究了水杨酸、柠檬酸、抗坏血酸和草酸4种化学诱导剂和一种杀菌剂(多菌灵)对fabae的防治效果。在两个季节的田间条件和温室试验中,与对照和杀菌剂相比,水杨酸处理的植株叶片和茎部病害严重程度显著降低。水杨酸对该病的防治效果好于多菌灵,多菌灵只起到部分保护作用。体外对真菌生长的抑制作用进行了研究,结果表明,培养6天后,水杨酸对真菌生长的抑制作用最好(48%),其次是草酸(39%)、抗坏血酸(33%)和柠檬酸(10%)。在接种后12、24、48、72、96和120 h,水杨酸处理的蚕豆健康叶片和染病叶片中总酚含量显著增加。这些对突尼斯和其他地区蚕豆主要真菌病害防治的有希望的结果将对蚕豆生产产生重要影响。
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来源期刊
Journal of Crop Protection
Journal of Crop Protection Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
1.20
自引率
0.00%
发文量
0
审稿时长
10 weeks
期刊介绍: Journal of Crop Protection is one of the TMU Press journals that is published by the responsibility of its Editor-in-Chief and Editorial Board in the determined scopes. Journal of Crop Protection (JCP) is an international peer-reviewed research journal published quarterly for the purpose of advancing the scientific studies. It covers fundamental and applied aspects of plant pathology and entomology in agriculture and natural resources. The journal will consider submissions from all over the world, on research works not being published or submitted for publication as full paper, review article and research note elsewhere. The Papers are published in English with an extra abstract in Farsi language.
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