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Pea Aphid (Hemiptera: Aphididae) Population Responses to Selected Pea Cultivars and High Temperatures

Pea Aphid (Hemiptera: Aphididae) Population Responses to Selected Pea Cultivars and High Temperatures

Abdul Hafeez Mastoi1, Muhammad Rashid Nizamani2, Shafique Ahmed Memon3, Jun Jiang1, Xiang-Shun Hu1* and Tong-Xian Liu1*

1State Key Laboratory of Crop Stress Biology for Arid Areas, Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, and Key Laboratory of Entomology, Northwest A and F University, Yangling, Shaanxi 712100, China.
2Department of Agronomy, Sindh Agriculture University, Tando Jam, 70050, Pakistan.
3Department of Entomology, Lasbela University of Agriculture, Uthal, Balochistan, Pakistan. 
 
* Corresponding author: xiangshun@nwsuaf.edu.cn; txliu@nwsuaf.edu.cn

ABSTRACT

The response of Acyrthosipon pisum (Harris) (Hemiptera: Aphididae) population parameters to selected high temperatures (27, 30, 33, 36, 39°C) on 5 cultivars of pea, Pisum sativum L., was determined in laboratory testing. Of the 5 pea cultivars and 5 temperature levels included in our study, the highest values of the population parameters of net reproductive rate, intrinsic rate increase, finite rate increase, generation time, and fecundity of A. pisum was observed at 27°C, regardless of pea cultivar. In decreased as temperature increased at and above 30°C for each cultivar. Furthermore, differences among cultivars were often detected at 27°C and 30°C, but not at higher temperatures. Our results indicated that.

 

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Pakistan Journal of Zoology

October

Vol. 54, Iss. 5, Pages 2003-2500

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