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Impact of elevated CO2 on tobacco caterpillar, Spodopteralitura on peanut Arachis hypogea

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Title Impact of elevated CO2 on tobacco caterpillar, Spodopteralitura on peanut Arachis hypogea
Not Available
 
Creator Srinivasa Rao, M*., Manimanjari, D., Vanaja, M., Rama Rao, C A., Srinivas, K., Rao, V. U. M. and Venkateswarlu, B
 
Subject atmospheric carbon dioxide, consumption, foliage, insect performance indices
 
Description Not Available
If the carbon dioxide (CO2) concentration in the atmosphere changes in the future, as predicted, it
could influence crops and insect pests. The growth and development of the tobacco caterpillar,
Spodoptera litura (Fabricius) (Noctuidae: Lepidoptera), reared on peanut (Arachis hypogea L.)
foliage grown under elevated CO2 (550 ppm and 700 ppm) concentrations in open top chambers
at Central Research Institute for Dryland Agriculture, Hyderabad, India, were examined in this
study. Significantly lower leaf nitrogen, higher carbon, higher relative proportion of carbon to
nitrogen and higher polyphenols content expressed in terms of tannic acid equivalents were
observed in the peanut foliage grown under elevated CO2 levels. Substantial influence of elevated
CO2 on S. litura was noticed, such as longer larval duration, higher larval weights, and increased
consumption of peanut foliage by S. litura larvae under elevated CO2 compared with ambient
CO2. Relative consumption rate was significantly higher for S. litura larva fed plants grown at
550 and 700 ppm than for larvae fed plants grown at ambient condition. Decreased efficiency of
conversion of ingested food, decreased efficiency of conversion of digested food, and decreased
relative growth rate of larvae was observed under elevated CO2. The present results indicate that
elevated CO2 levels altered the quality of the peanut foliage, resulting in higher consumption,
lower digestive efficiency, slower growth, and longer time to pupation (one day more than
ambient).
Not Available
 
Date 2021-08-21T04:52:55Z
2021-08-21T04:52:55Z
2009
 
Type Research Paper
 
Identifier Vol 12 Article 103, 1-10.
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/58994
 
Language English
 
Relation Not Available;
 
Publisher Journal of Insect Science