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Response of multiple generations of semilooper, Achaeajanata L. (Noctuidae: Lepidoptera) feeding on castor - to elevated CO2

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Title Response of multiple generations of semilooper, Achaeajanata L. (Noctuidae: Lepidoptera) feeding on castor - to elevated CO2
Not Available
 
Creator Srinivasa Rao, M*., Srinivas, K.,Vanaja,M.,Manimanjari, D., Rama Rao, C.A and Venkateswarlu, B.
 
Subject Achaea janata, Castor, Elevated CO2 , Generations, Insect performance indices, Potential population increase index
 
Description Not Available
The growth, development and consumption of four successive generations of semilooper, Achaea
janata reared on castor (Ricinus communis L.) foliage grown under elevated carbon dioxide (550
and 700 parts per million ) concentrations in open top chambers were estimated at Hyderabad,
India. Significantly lower leaf nitrogen, higher carbon, higher relative proportion of carbon to nitrogen
(C: N) and higher polyphenols expressed in terms of tannic acid equivalents were observed in castor
foliage under elevated CO2 levels. Significant influence on life history parameters of A. janata viz.,
longer larval duration, increased larval survival rates and differential pupal weights in successive
four generations were observed under elevated over ambient CO2 levels. The consumption per
larva under elevated CO2
increased from first to fourth generation. An increase in approximate
digestibility and relative consumption rate, decreased efficiency of conversion of ingested food
and digested food and relative growth rate of the four generations under elevated CO2
levels was
noticed. Potential population increase index was lower for successive generations under both
elevated CO2
over ambient. The present findings indicated that elevated CO2
levels significantly
alter the quality of castor foliage resulting in higher consumption and better assimilation by larvae,
slower growth and longer time to pupation besides producing less fecund adults over generations
Not Available
 
Date 2021-08-25T04:48:32Z
2021-08-25T04:48:32Z
2013
 
Type Research Paper
 
Identifier 34 . pp: 877-883
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/60465
 
Language English
 
Relation Not Available;
 
Publisher Journal of Environmental Biology