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Assessment of impact of climate change with reference to elevated CO2 on rice brown planthopper, Nilaparvata lugens (Stal.) and

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Title Assessment of impact of climate change with reference to elevated CO2 on rice brown planthopper, Nilaparvata lugens (Stal.) and
Not Available
 
Creator N. R. Prasannakumar, Subhash Chander,* and Madan Pal
 
Subject Brown planthopper, climate change, elevated CO2, rice.
 
Description Not Available
Impact of elevated CO2 on the rice brown planthopper
(BPH), Nilaparvata lugens (Stal.) population and rice
yield was assessed in open-top chambers during kharif
2010 and 2011. Brachypterous females laid more eggs
(324.3 ± 112.3 eggs/female) on the rice plants exposed
to elevated CO2 (570 ± 25 ppm) than 380 ppm ambient
CO2 (231.7 ± 31.8 eggs). Elevated CO2 exhibited positive
effect on BPH multiplication and resulted in morethan a doubling of its population (435.4 ± 62.0 hoppers/
hill) at peak incidence compared to ambient CO2
(121.4 ± 36.8 hoppers/hill) during kharif 2010; corresponding
populations being 113.0 ± 11.5 and 47.0 ±
8.1 hoppers/hill during kharif 2011 respectively. Besides,
honeydew excretion was observed to be 74.41%
more under elevated CO2 (187.6 ± 44.8 mm2/5 females)
than ambient CO2 (48 ± 20.1 mm2/5 females). On the
other hand, high CO2 exhibited nutritive effect on
uninfested rice crop through 21.6%, 15.3% and 14.1%
increase in the number of tillers, reproductive tillers
and seeds/panicle respectively, and as a consequence
increased grain by 11.1% compared to ambient CO2.
However, despite the nutritive effect, crop under elevated
CO2 suffered higher yield loss (26.5%) due to
higher BPH population as well as sucking rate compared
to ambient CO2 (12.4%).
Not Available
 
Date 2024-04-24T12:20:19Z
2024-04-24T12:20:19Z
2012-01-01
 
Type Research Paper
 
Identifier Prasannakumar, N.R., Chander, S. and Pal, M. 2012. Assessment of impact of climate change with reference to elevated CO2 on rice brown planthopper, Nilaparvata lugens (Stal.) and crop yield. Current Science 103 (10): 1201-1205
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/82344
 
Language English
 
Relation Not Available;
 
Publisher Current Science