Summary
Sugarcane clones differ in regard to susceptibility to zinc (Zn2+) deficiency in the field. Excised roots of clone H57-5174 actively absorbed Zn2+ at a rate twice that of H53-263 roots. The maximum rates of Zn2+ uptake (Vmax) and the Km values also differed markedly between these two clones. H53-263 roots have a 6-fold greater affinity for Zn2+ than do those of H57-5174. H57-5174 readily develops Zn2+ deficiency symptoms in the field but H53-263 rarely does so. A partial explanation for these varying responses appears to lie in these data.
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Journal Series No. 1536 of the Hawaii Agricultural Experiment Station.
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Bowen, J.E. Kinetics of zinc absorption by excised roots of two sugarcane clones. Plant Soil 39, 125–129 (1973). https://doi.org/10.1007/BF00018051
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DOI: https://doi.org/10.1007/BF00018051