Abstract
Investigations were conducted on two peach seedling rootstocks, Nemaguard and TXR4989-2 (hybrid Titan × Nemared’), grown in bicarbonate-containing nutrient solution with 50 μM Fe-DTPA. Root-associated Fe(III)-reductase activity and iron absorption were determined to elucidate the physiological differences which cause the different tolerance of the two rootstocks in calcareous soils. Reductase activity was detectable in intact plants after several weeks and visualized on excised roots in gelrite medium. The physiological responses of NMG and TXR rootstocks suggest that stress conditions increase the Fe-reduction capacity and the iron uptake enormously. Both assays indicated interesting differences in behaviour between rootstocks.
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Cinelli, F., Viti, R., Byrne, D., Reed, D. (1995). Physiological characterization of two peach seedling rootstocks in bicarbonate nutrient solution. I. Root iron reduction and iron uptake. In: Abadía, J. (eds) Iron Nutrition in Soils and Plants. Developments in Plant and Soil Sciences, vol 59. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0503-3_46
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DOI: https://doi.org/10.1007/978-94-011-0503-3_46
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