Phenotypic plasticity of Chinese sprangletop (Leptochloa chinensis) in competition with seeded rice

Chauhan, Bhagirath S. and Johnson, David E. (2011) Phenotypic plasticity of Chinese sprangletop (Leptochloa chinensis) in competition with seeded rice. Weed Technology, 25 4: 652-658. doi:10.1614/WT-D-09-00076.1


Author Chauhan, Bhagirath S.
Johnson, David E.
Title Phenotypic plasticity of Chinese sprangletop (Leptochloa chinensis) in competition with seeded rice
Journal name Weed Technology   Check publisher's open access policy
ISSN 0890-037X
1550-2740
Publication date 2011-01-01
Year available 2011
Sub-type Article (original research)
DOI 10.1614/WT-D-09-00076.1
Volume 25
Issue 4
Start page 652
End page 658
Total pages 7
Place of publication Lawrence, KS United States
Publisher Weed Science Society of America
Language eng
Subject 1102 Cardiovascular Medicine and Haematology
1110 Nursing
Abstract Chinese sprangletop, a C4 species, is one of the most important grass weeds of seeded rice in Asia. Chinese sprangletop biology was studied by growing it alone and in competition with 4 and 12 rice plants. Rice competition did not affect the height of Chinese sprangletop, and the weed grew taller than rice, regardless of the competition. Compared with Chinese sprangletop grown alone, competition from rice reduced Chinese sprangletop leaf number, leaf production rate, tiller number, tiller production rate, leaf area, shoot biomass, relative growth rate, and net assimilation rate. Leaf area and shoot biomass of Chinese sprangletop when grown in competition with 12 rice plants was only 16% and 13%, respectively, of the leaf area and biomass of the weed grown alone.
Keyword Biomass
Competition
Leaf area
Plasticity
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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