Variability Influence of the Volatile Compounds of Three Algerian Date Cultivars (Phoenix dactylifera L.) on Infestation Rates of the Date Moth [(Ectomyelois ceratoniae Zell. (Lepidoptera: Pyralidae)]

Y. Arif, N. Lombarkia
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引用次数: 3

Abstract

The date moth Ectomyelois ceratoniae Zeller (Lepidoptera; Pyralidae) is a serious pest for the dates production in Algerian oasis. Its dangerousness resides in its wide geographic distribution on various bioclimatics stages and his polyphagia on various hosts. In this context, to find out the impact of the dates volatile compounds on the date moth oviposition behavior. To do this, we conducted the following study, which is divided into two parts, one in the field and the other in the laboratory. This study investigated the effect of the biochemical profiles of three Algerian date cultivars (Deglet-Nour, Ghars and Degla-Beidha) on the infestation rates of the date moth. The monitoring infection rates in the field produced the following results: during the campaigns from 2011/2012 to 2014/2015 at the INRAA Sidi Mahdi-Touggourt station (Algeria), revealed that the cultivar Deglet-Nour is the most affected with a rate of 18.84%, followed by Ghars with 10.28% then Degla-Beidha with 6.66%. As for the extracts analysis of the three date cultivars with hexane were identified and quantifie via coupling gas chromatography / mass spectrometry (GC/MS). The analysis of the volatile compounds of the cultivars studied allowed to identify 110 compounds distributed in eight chemical classes (hydrocarbons (saturated aliphatic hydrocarbons, unsaturated aliphatic hydrocarbons, unsaturated monocyclic hydrocarbons, saturated monocyclic hydrocarbons, aromatic hydrocarbons, terpene hydrocarbons), alcohols, aldehydes, esters, ketones, amides, phenols and carboxylic acids), whose compounds are distributed as follows: 72 compounds for the Deglet-Nour, 38 compounds for the cultivar Ghars and 29 compounds for Degla-Beidha.
3个阿尔及利亚枣品种挥发性成分对大枣蛾侵染率的变异性影响(鳞翅目:Pyralidae)]
枣蛾(鳞翅目;皮蚜科(Pyralidae)是阿尔及利亚绿洲枣生产的严重害虫。其危险性在于其在不同生物气候阶段的广泛地理分布和对不同宿主的多食性。在此背景下,了解枣挥发物对枣蛾产卵行为的影响。为此,我们进行了以下研究,研究分为两部分,一部分在现场,另一部分在实验室。研究了阿尔及利亚3个枣品种(Deglet-Nour、Ghars和Degla-Beidha)生化特征对枣蛾侵染率的影响。2011/2012年至2014/2015年,在阿尔及利亚Sidi mahdi - tougourt站开展的田间侵染监测显示,Deglet-Nour品种侵染率最高,为18.84%,Ghars为10.28%,Degla-Beidha为6.66%。采用气相色谱/质谱联用技术(GC/MS)对3个枣树品种中含有己烷的提取物进行了鉴定和定量分析。通过对所研究品种挥发性化合物的分析,鉴定出110种化合物,分布在8个化学类别(烃类(饱和脂肪烃、不饱和脂肪烃、不饱和单环烃、饱和单环烃、芳香烃、萜烯烃)、醇类、醛类、酯类、酮类、酰胺类、酚类和羧酸类),其化合物分布如下:Deglet-Nour有72个化合物,Ghars有38个化合物,Degla-Beidha有29个化合物。
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