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Invasive potential of C3-C4 intermediate Parthenium hysterophorus under elevated CO2

Indian Agricultural Research Journals

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Title Invasive potential of C3-C4 intermediate Parthenium hysterophorus under elevated CO2
 
Creator NAIDU, V SGR
 
Subject Carbon isotope, Elevated CO2, Parthenium
 
Description An experiment was conducted in open top chambers (OTCs) to study the growth, water-use efficiency and carbonisotope discrimination (Δ13C) in Parthenium hysterophorus in response to elevated CO2. Parthenium plants were grownin OTCs maintained at ambient (370±20 ppm) and elevated (550±30) CO2 levels as well as under open field conditions.Water-use efficiency (WUE) was determined by gravimetric method. The carbon isotope discrimination (Δ13C) wasdetermined by Isotope Ratio Mass Spectrometry (IRMS). The CO2 enrichment enhanced both the above and below groundbiomass in Parthenium. Water-use efficiency (WUE) and Carbon isotope discrimination (Δ13C) were higher in plantsgrown under elevated CO2 compared to plants under ambient CO2 conditions. The growth stimulation and increasedwater-use efficiency in Parthenium indicates that this weed could become more aggressive in future if the atmosphericCO2 continue to rise coupled with the rise in temperature.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-03-08
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/27984
 
Source The Indian Journal of Agricultural Sciences; Vol 83, No 2 (2013)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/27984/12692
 
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