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Type: Journal article
Title: Root growth of lupins is more sensitive to waterlogging than wheat
Author: Bramley, H.
Tyerman, S.
Turner, D.
Turner, N.
Citation: Functional Plant Biology, 2011; 38(11):910-918
Publisher: C S I R O Publishing
Issue Date: 2011
ISSN: 1445-4408
Statement of
Helen Bramley, Stephen D. Tyerman, David W. Turner and Neil C. Turner
Abstract: In south-west Australia, winter grown crops such as wheat and lupin often experience transient waterlogging during periods of high rainfall. Wheat is believed to be more tolerant to waterlogging than lupins, but until now no direct comparisons have been made. The effects of waterlogging on root growth and anatomy were compared in wheat (Triticum aestivum L.), narrow-leafed lupin (Lupinus angustifolius L.) and yellow lupin (Lupinus luteus L.) using 1m deep root observation chambers. Seven days of waterlogging stopped root growth in all species, except somenodal root development in wheat. Roots of both lupin species died back progressively from the tips while waterlogged. After draining the chambers, wheat root growth resumed in the apical region at a faster rate than well-drained plants, so that total root length was similar in waterlogged and well-drained plants at the end of the experiment. Root growth in yellow lupin resumed in the basal region, but was insufficient to compensate for root death during waterlogging. Narrow-leafed lupin roots did not recover; they continued to deteriorate. The survival and recovery of roots in response to waterlogging was related to anatomical features that influence internal oxygen deficiency and root hydraulic properties.
Keywords: aerenchyma; anatomy; Lupinus angustifolius; Lupinus luteus; Triticum aestivum
Rights: This compilation copyright CSIRO 2011
RMID: 0020113832
DOI: 10.1071/FP11148
Appears in Collections:Agriculture, Food and Wine publications

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