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Abstract
Sand culture studies using cauliflower as the test plant revealed changes in water relations of plants subjected to deficiencies of Fe, Cu, Zn and B. While deficiencies of Zn and B caused a decrease in water potential, transpiration rate and water loss, deficiencies of Fe and Cu caused an increase in each of these. Observed changes in water relations have been examined in terms of changes in leaf morphology and metabolism.
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