Abstract
RECENT investigations by Reed and Dufrénoy1 on the condition known in Citrus culture as mottleleaf are of great interest to the plant physiologist apart from their practical value to the industry. Results obtained from field treatments in conjunction with microchemical examination have suggested that zinc plays an important role in controlling the oxidation-reduction equilibrium of the leaf cells. Application of zinc, either through the soil or in the form of a spray to the foliage, leads to rapid recovery from the mottled condition, associated with profound cytological changes including the production of chlorophyll.
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H. S. Reed and J. Dufrénoy, ” The Effects of Zinc and Iron Salts on the Cell Structure of Mottled Orange Leaves”, Hilgardia (Univ. of Calif., Berkeley, Calif.), 9, 113–135 ; 1935.
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JONES, W. Zinc and Plant Metabolism. Nature 136, 646 (1935). https://doi.org/10.1038/136646c0
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DOI: https://doi.org/10.1038/136646c0
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