Efficiency of nitrate uptake in spinach: impact of external nitrate concentration and relative growth rate on nitrate influx and efflux

Regulation of nitrate influx and efflux in spinach (Spinacia oleracea L., cv. Subito), was studied in short-term label experiments with ¹³N-and ¹⁵N-nitrate. Nitrate fluxes were examined in relation to the N demand for growth, defined as relative growth rate (RGR) times plant N concentration. Plants...

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Veröffentlicht in:	Plant and soil 1999, Vol.208 (1), p.125-134
Hauptverfasser:	Steege, M.W. ter (Groningen Univ., Haren (Netherlands). Dept. of Plant Biology), Stulen, I, Wiersema, P.K, Posthumus, F, Vaalburg, W
Format:	Artikel
Sprache:	eng
Schlagworte:	ABSORCION DE SUSTANCIAS NUTRITIVAS ABSORPTION DE SUBSTANCES NUTRITIVES Absorption. Translocation of ions and substances. Permeability Agronomy. Soil science and plant productions Barley Biological and medical sciences Economic plant physiology Efficiency Fundamental and applied biological sciences. Psychology GROWTH RATE INDICE DE CRECIMIENTO Mineral composition NITRATE NITRATES NITRATOS Nitrogen NUTRIENT UPTAKE Nutrition. Photosynthesis. Respiration. Metabolism Physiological regulation Plant growth Plant growth regulators Plant physiology and development Plant roots Plants Sowing Spinach SPINACIA OLERACEA TAUX DE CROISSANCE Translocation Water and solutes. Absorption, translocation and permeability
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