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Type: Journal article
Title: The use of a zinc-efficient wheat cultivar as an adaptation to calcareous subsoil: a glasshouse study
Author: Holloway, R.
Graham, R.
McBeath, T.
Brace, D.
Citation: Plant and Soil: international journal on plant-soil relationships, 2010; 336(1-2):15-24
Publisher: Kluwer Academic Publ
Issue Date: 2010
ISSN: 0032-079X
Statement of
Robert E. Holloway, Robin D. Graham, Therese M. McBeath, Dot M. Brace
Abstract: Zinc (Zn) is an essential nutrient for plants with a major role in healthy root growth. Zinc is essential for maintaining root membrane integrity, but the effective Zn concentration required may depend on the crop genotype. Zinc-efficient and inefficient wheat cultivars (Triticuum aestivum cv. Excalibur and Gatcher, respectively) were grown in deep soil cores in calcareous subsoil with low micronutrient levels, and high pH and boron. Plants were grown in soil with or without basal nutrients (excluding Zn) and with or without addition of Zn. Components of yield and nutrient use efficiency were measured. Although Gatcher produced 47% more dry weight of tops and double the root length density of Excalibur at maturity, Excalibur was much more efficient in terms of Zn uptake by roots and seven-fold more efficient than Gatcher in partitioning Zn to grain production.
Keywords: Root length
Zinc uptake
Zinc partitioning
Rights: © Springer Science+Business Media B.V. 2010
DOI: 10.1007/s11104-010-0435-x
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Appears in Collections:Agriculture, Food and Wine publications
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