Abstract
Nutrient uptake and translocation by above-ground adventitious roots and below-ground roots of woodySalix syringiana saplings were studied with gamma spectrometry. Each of four radionuclides (75Se,138Cs,54Mn, and65Zn) administered to adventitious and belowground roots were detected in stems and leaves within one month. Nuclides tended to be immobilized in the leaves and branches closest to the adventitious roots that absorbed them, while nuclides absorbed from below-ground sources were distributed more evenly throughout the plant. The capacity of adventitious roots to acquire nutrients from above-ground sources suggests they function as a potential ‘auxiliary’ pathway of nutrient uptake and might enhance plant nutrient status where below-ground root uptake it hindered by adverse soil conditions.
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Nadkarni, N.M., Primack, R.B. A comparison of mineral uptake and translocation by above-ground and below-ground root systems ofSalix syringiana . Plant Soil 113, 39–45 (1989). https://doi.org/10.1007/BF02181919
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DOI: https://doi.org/10.1007/BF02181919