Abstract
A pot experiment with maize cv. ‘Limac’ was conducted to investigate the influence of BAS 110.. W, a plant growth regulator (PGR), on root and shoot development and nutrient uptake. The PGR was applied via the soil with 0, 5, 10, 20, and 40 mg a.i. per pot. Shoot dry matter production was reduced to a higher degree than root length, resulting in a higher root-shoot ratio (RSR) of the treated plants. Shoots of treated plants contained higher concentrations of N, P, Ca, Mg, and unchanged K concentrations. The alterations in concentration could be explained by the changes in RSR induced by the plant growth retardant. The effect was strongest with P (+40%) which was limited by soil supply. N, Ca, and Mgconcentrations were positively influenced (+20%), there was no increase for Kvs RSR.
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Kuchenbuch, R., Jung, J. Changes in root-shoot ratio and ion uptake of maize (Zea mays L.) from soil as influenced by a plant growth regulator. Plant Soil 109, 151–157 (1988). https://doi.org/10.1007/BF02202079
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DOI: https://doi.org/10.1007/BF02202079