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RESPONSE OF MULTIPLE GENERATIONS OF TOBACCO CATERPILLAR SPODOPTERA LITURA FAB, FEEDING ON PEANUT, TO ELEVATED CO2

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Title RESPONSE OF MULTIPLE GENERATIONS OF TOBACCO CATERPILLAR SPODOPTERA LITURA FAB, FEEDING ON PEANUT, TO ELEVATED CO2
RESPONSE OF MULTIPLE GENERATIONS OF TOBACCO CATERPILLAR SPODOPTERA LITURA FAB, FEEDING ON PEANUT, TO ELEVATED CO2
 
Creator ICAR_CRIDA
 
Subject consumption, insect performance indices, successive generations, Spodoptera litura
 
Description Not Available
Changes in quality of host plants under elevated CO2 (eCO2) conditions likely in future can
affect the survival, growth and development, and population dynamics of insect herbivores. The present
study aimed to examine the effects of eCO2 on leaf quality of peanut (Arachis hypogaea L.) and
consequent effects on growth characteristics of leaf feeding tobacco caterpillar, Spodoptera litura
(Fabricius) over four successive generations. The feeding trials were conducted using peanut foliage
grown in open top chambers (OTCs) under two eCO2 (550 ppm and 700 ppm) concentrations and one
ambient CO2 concentration. Significantly lower leaf nitrogen, higher carbon, higher relative proportion of
carbon to nitrogen (C: N) and higher polyphenols content were observed in eCO2 foliage. Larvae fed with
eCO2 foliage exhibited longer larval duration, higher larval weights and increased consumption in all four
generations. Increased Approximate Digestibility (AD) (about 9%) and Relative Consumption Rate
(RCR) (7%), decreased levels of efficiency of conversion of ingested food (ECI) (13%), efficiency of
conversion of digested food (ECD) (19%), and relative growth rate (RGR) (9%) were noticed in larvae
fed eCO2 foliage. Significant and cumulative effect of CO2 on S.litura was observed over four successive
generations.
Not Available
 
Date 2020-02-25T09:05:56Z
2020-02-25T09:05:56Z
2014
 
Type Technical Report
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/32885
 
Language English
 
Relation Not Available;
 
Publisher SRINIVASA RAO, M., VANAJA, M., RAMA RAO, C. A., SRINIVAS, K., RAJU, B. M. K., MAHESWARI, M., VENKATESWARLU, B.