Rising CO2 can alter fodder–weed interactions and suppression of Parthenium hysterophorus

Khan, N., George, D., Shabbir, A., Hanif, Z. and Adkins, S. W. (2015) Rising CO2 can alter fodder–weed interactions and suppression of Parthenium hysterophorus. Weed Research, 55 2: 113-117. doi:10.1111/wre.12127


Author Khan, N.
George, D.
Shabbir, A.
Hanif, Z.
Adkins, S. W.
Title Rising CO2 can alter fodder–weed interactions and suppression of Parthenium hysterophorus
Formatted title
Rising CO2 can alter fodder–weed interactions and suppression of Parthenium hysterophorus
Journal name Weed Research   Check publisher's open access policy
ISSN 1365-3180
0043-1737
Publication date 2015-04
Year available 2014
Sub-type Article (original research)
DOI 10.1111/wre.12127
Open Access Status
Volume 55
Issue 2
Start page 113
End page 117
Total pages 5
Place of publication Chichester, West Sussex, United Kingdom
Publisher Wiley-Blackwell Publishing
Collection year 2015
Language eng
Formatted abstract
Three C4 grass (Setaria incrassata, Astrebla squarrosa and Bothriochloa decipiens) and one C3 legume (Clitoria ternatea) suppressive fodder species, were re-evaluated against the growth of the C3 Parthenium hysterophorus under an ambient (390 μmol mol−1) and an elevated atmospheric CO2 concentration (550 μmol mol−1). Under the elevated atmospheric CO2, shoot dry biomass and suppression index (SI) value of the C4 S. incrassata were both reduced by 32% and 0.7 respectively, while those for A. squarrosa were reduced by 23% and 0.3. In contrast and under the same elevated atmospheric CO2 concentration, the shoot dry biomass and SI of the C4 B. decipiens were increased by 8% and 0.1 respectively, while those for the C3 C. ternatea were increased by 38% and 0.8. Our results suggest that C3 fodder plants along with certain C4 species could be utilised for the effective management of P. hysterophorus under the future elevated atmospheric CO2 conditions. However, this system needs more fodder species to be investigated. Our results suggest that rising CO2 per se may alter the efficacy of suppressive fodder management of an invasive C3 species, P. hysterophorus.
Keyword Elevated CO2
Climate change
Parthenium weed
Growth suppression
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online 12 November 2014

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Official 2015 Collection
 
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Created: Fri, 27 Mar 2015, 16:02:04 EST by Professor Steve Adkins on behalf of Qld Alliance for Agriculture and Food Innovation