caa a22 4500 46909835X CHVBK 20180323133038.0 cr unu---uuuuu 170328e19920401xx s 000 0 eng 10.1007/BF00317817 doi (NATIONALLICENCE)springer-10.1007/BF00317817 Environmental and physiological factors governing nutrient resorption efficiency in barley [Elektronische Daten] [F. Pugnaire, F. Chapin III] Summary: Barley plants (Hordeum vulgare cv. stepto) were grown in a greenhouse under two nutrient and water levels and four treatments intended to alter sourcesink relationships, in a factorial experiment designed to study factors governing efficiency of nutrient resorption from senescing leaves. Plant growth was enhanced in high-nutrient treatments, leading to higher concentrations of nitrogen (N) and phosphorus (P) in leaves and ears. Water stress reduced growth, but plants in waterstressed treatments had equal or higher nutrient concentrations than watered plants. Nutrient resorption efficiency was higher at low than at high nutrient availability, and was higher in watered than in water-stressed plants. Treatments in which sink strength was increased had enhanced resorption efficiency, as well as those in which the source activity was reduced. Our data show that the amount of nutrient resorbed and the efficiency of the resorption process depend on plant nutrient and water status, and that the presence of an active sink strongly enhances nutrient resorption. Springer-Verlag, 1992 Nitrogen nationallicence Nutrient stress nationallicence Nutrient resorption nationallicence Translocation nationallicence Water stress nationallicence Pugnaire F. Department of Integrative Biology, University of California, 94720, Berkeley, CA, USA aut Chapin III F. Department of Integrative Biology, University of California, 94720, Berkeley, CA, USA aut Oecologia Springer-Verlag 90/1(1992-04-01), 120-126 0029-8549 90:1<120 1992 90 442 https://doi.org/10.1007/BF00317817 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00317817 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pugnaire F. Department of Integrative Biology, University of California, 94720, Berkeley, CA, USA aut NATIONALLICENCE 700 1- Chapin III F. Department of Integrative Biology, University of California, 94720, Berkeley, CA, USA aut NATIONALLICENCE 773 0- Oecologia Springer-Verlag 90/1(1992-04-01), 120-126 0029-8549 90:1<120 1992 90 442 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer