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Impact of eCO2 and Temperature on Aphis craccivorakoch. On Groundnut and Future Pest Status During Climate Change Scenarios

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Title Impact of eCO2 and Temperature on Aphis craccivorakoch. On Groundnut and Future Pest Status During Climate Change Scenarios
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Creator Srinivasa Rao Mathukumalli, Shaila Ongolu, Vennila Sengottaiyan and Rama Rao Anantha Chitiprolu
 
Subject Aphids; Development time; Thermal constant; Life table parameters; Climate change; Pest status
 
Description Not Available
Studies were conducted to quantify the direct effects of temperature
and indirect effect of elevated CO2 (eCO2), on Aphis craccivora
Koch. on groundnut (Arachis hypogaea L.). The mean development
time (DT) of nymph was significantly reduced by 1-2 days from 20
to 35°C temperature at eCO2 over ambient CO2 (aCO2) conditions.
Increased production of offspring was noticed at eCO2. The thermal
requirement of nymph varied from 74-102 DD on eCO2 with
temperature in the range of 20-30°C as against 90-130 DD on aCO2.
Non-linear mostly quadriatic relationship of lifetable parameters rm,
Ro, T and λ varied with temperature and CO2 and found to have nonlinear
relationship. Prediction of pest scenarios based on PRECIS
A1B emission scenario data at eleven groundnut cultivating
locations of India during near (NF) and distant future (DF) periods
showed that increase of ‘rm’ and ‘λ’ with varied ‘Ro’ and reduced ‘T’.
Similar trends were reflected in three decadal periods of NF also.
The present results indicate that incidence of A. craccivora is likely
to be higher in the future climate change periods.
Not Available
 
Date 2021-08-21T04:39:49Z
2021-08-21T04:39:49Z
2017
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/58953
 
Language English
 
Relation Not Available;
 
Publisher Journal of Plant Physiol Pathol, Sci Technol