IJAIR NAAS Score : 3.99 ,ISSN : 2319-1473

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IJAIR NAAS Score : 3.99
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IJAIR NAAS Score : 3.99
"Submissions Open For Volume 9,Issue 1,July - Aug., 2020"


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IJAIR NAAS Score : 3.99
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IJAIR NAAS Score : 3.99
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IJAIR NAAS Score : 3.99
"Submissions Open For Volume 9,Issue 1,July - Aug., 2020"


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Volume 8,Issue 6,May - June, 2020


Submissions open

IJAIR NAAS Score : 3.99
"Submissions Open For Volume 9,Issue 1,July - Aug., 2020"


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IJAIR NAAS Score : 3.99
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IJAIM , IJRAS , IJISM ,
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Effect of Certain Climatic Factors and Plant Phenology on Population Density of Schizaphis graminum on Wheat Plants in Luxor Governorate, Egypt

Moustafa M. S. Bakry; Roya Arbabtafti; Lamiaa H. Y. Mohamed
The aim of this research is to determine the impacts of some climatic factors and plant phenology on the population density of Schizaphis graminum. Field experiments were conducted at wheat program of El-Mattana Agricultural Research Station, Luxor Governorate, Egypt, during two successive growing seasons (2017/18 and 2018/19) to study the seasonal activity of S. graminum (Rondani) (Hemiptera: Aphididae) on wheat plants (Giza 171 cultivar). Results indicated that S. graminum infested wheat plants from 17th December 2017 to 8th April 2018 during the first growing season and from 27th January 2019 to 13th April 2019 in the second growing season. The cumulative counts of S. graminum were 597.00 and 310.33 individuals per season for the two growing seasons, respectively. The total mean of S. graminum population through the whole season was 35.12 ± 3.31 and 25.86 ± 1.96 individuals per 10 tillers over the first and second growing seasons, respectively. Generally, it was, found that the climatic conditions of weekly inspection dates were more favorite for S. graminum to grow its population during December, January and February of the first season and during February and March 2019 in the second season. Furthermore, it was found that the number of S. graminum disappeared during the wheat maturation period in two consecutive growing seasons. Results revealed that the combined effects of the climatic factors and the plant phenology can explain the variation in the population density of S. graminum. The percentages of explained variance (E.V.%) were 95.93 and 98.02% for the two successive growing seasons, respectively. Mean daily maximum temperature of S. graminum population changes was 25.75 and 18.57% for 2018 and 2019, respectively and it was the most effective variable. These pieces of information can be useful for planning an IPM program of aphid on wheat plants.
Select Volume / Issue:
Year:
2020
Type of Publication:
Article
Keywords:
Schizaphis graminum; Seasonal Abundance; Wheat Plants; Environmental Conditions; Plant Age; Growth Stage
Journal:
IJAIR
Volume:
8
Number:
5
Pages:
401-414
Month:
March
ISSN:
2319-1473
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