Bulletin of Entomological Research, Volume (113), No (2), Year (2023-4) , Pages (196-211)

Title : ( Effects of drought stress and plant cultivar type on demographic characteristics of the rose-grain aphid, Metopolophium dirhodum (Hemiptera: Aphididae) )

Authors: Maryam Aleosfoor , Maryam Zahediannezhad , Kambiz Minaei , Lida Fekrat , Hooman Razi ,

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Abstract

Drought is a substantial threat to cereal production under global climatic change scenarios, albeit its aftermath on arthropod pests is yet contentious. To address this issue, demographic characteristics of Metopolophium dirhodum (Walker, 1849) (Hemiptera: Aphididae) were studied on one drought-susceptible wheat cultivar and one drought-tolerant wheat cultivar under different water treatments. Some physiological and biochemical features of wheat cultivars including leaf soluble sugar and proline contents and antioxidant enzymes activities were also investigated. Significant differences occurred in the developmental period, survival, and fecundity of M. dirhodum between wheat cultivars under various water treatments. The impact of intermediate and severe water stress on M. dirhodum was neutral and negative for the tolerant cultivar and negative for the water-susceptible cultivar, respectively. Under severe water stress, on both wheat cultivars, the aphids had low net reproductive rates and finite and intrinsic rates of increase in comparison with those reared on unstressed plants. In total, drought resulted in lower growth of population and reduced survival of aphids. Hence, in the context of projected climatic changes, acute water deficiency could probably result in redu- cing the abundance and menace of outburst of M. dirhodum. However, it should be noted that the potential likelihood of M. dirhodum eruptions can be drastically affected by the degree of drought intensity and host plant cultivar.

Keywords

Antioxidant enzymes; life history; Metopolophium dirhodum; Triticum aestivum; water stress
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@article{paperid:1091798,
author = {Maryam Aleosfoor and Maryam Zahediannezhad and Kambiz Minaei and Fekrat, Lida and Hooman Razi},
title = {Effects of drought stress and plant cultivar type on demographic characteristics of the rose-grain aphid, Metopolophium dirhodum (Hemiptera: Aphididae)},
journal = {Bulletin of Entomological Research},
year = {2023},
volume = {113},
number = {2},
month = {April},
issn = {0007-4853},
pages = {196--211},
numpages = {15},
keywords = {Antioxidant enzymes; life history; Metopolophium dirhodum; Triticum aestivum; water stress},
}

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%0 Journal Article
%T Effects of drought stress and plant cultivar type on demographic characteristics of the rose-grain aphid, Metopolophium dirhodum (Hemiptera: Aphididae)
%A Maryam Aleosfoor
%A Maryam Zahediannezhad
%A Kambiz Minaei
%A Fekrat, Lida
%A Hooman Razi
%J Bulletin of Entomological Research
%@ 0007-4853
%D 2023

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