Maize canopy production under contrasted water regimes

Song, Y., Birch, C. J. and Hanan, J. (2010) Maize canopy production under contrasted water regimes. Annals of Applied Biology, 157 1: 111-123. doi:10.1111/j.1744-7348.2010.00412.x

Author Song, Y.
Birch, C. J.
Hanan, J.
Title Maize canopy production under contrasted water regimes
Journal name Annals of Applied Biology   Check publisher's open access policy
ISSN 0003-4746
Publication date 2010
Sub-type Article (original research)
DOI 10.1111/j.1744-7348.2010.00412.x
Volume 157
Issue 1
Start page 111
End page 123
Total pages 13
Place of publication Oxford, UK
Publisher Blackwell Publishing
Collection year 2011
Language eng
Subject 0703 Crop and Pasture Production
Abstract Two field experiments were employed to investigate canopy production in two cultivars of maize (Zea mays), Pioneer 34N43 and Pioneer 31H50, under contrasted water regimes. Plants were sampled at 1-3 day intervals to quantify extension of leaves and internodes. Final lengths of leaf laminae, sheaths and internodes were reduced when the organ extension was exposed to water stress; however, Pioneer 34N43 appeared to be more sensitive than Pioneer 31H50. An effective linear phase by simplifying a four-phase model was used to characterise organ extension in response to water stress. The coordination of the timing of sequential extension events of laminae, sheaths and internodes was preserved under mild water stress, but rates of processes were reduced. The rate of linear extension was principally responsible for reduction in organ length. This study provides robust relationships for use in modelling organ extension and canopy production under mild to moderate water stress. © 2010 Association of Applied Biologists.
Keyword Canopy development
Leaf extension
Linear phase
Water stress
Zea mays L
Leaf growth
Internode Elongation
Term responses
Grass Leaf
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Received: 1 May 2009; revised version accepted: 13 March 2010.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Agriculture and Food Sciences
QAAFI Biological Information Technology (QBIT) Publications
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Created: Sun, 04 Jul 2010, 00:07:28 EST