Journal
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
Volume 178, Issue 3, Pages 365-369Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jpln.201400361
Keywords
hydroponics; iron toxicity; leaf bronzing; vapor-pressure deficit
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Funding
- German Research Foundation (DFG)
- German Academic Exchange Service (DAAD)
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We evaluated six lowland rice (Oryza sativa L.) genotypes with contrasting responses to increasing Fe2+ concentrations under conditions of both low (0.3 kPa) and high (2.4 kPa) vapor pressure deficit. Dry atmospheric conditions generally enhanced transpiration with concomitant increases in Fe uptake and leaf bronzing. Some resistant genotypes were able to limit the water loss by transpiration under higher Fe concentrations thus attenuating negative effects associated with increased Fe2+ translocation at high vapor pressure deficit.
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