caa a22 4500 477111149 CHVBK 20180405111609.0 cr unu---uuuuu 170330e19960201xx s 000 0 eng 10.1007/BF00011644 doi (NATIONALLICENCE)springer-10.1007/BF00011644 Enhancement of short-term nitrogen uptake by greenhouse roses under intermittent N-deprivation [Elektronische Daten] [Raul Cabrera, Richard Evans, J. Paul] A recirculating nutrient solution system was utilized to study the effect of intermittent N deprivation on N uptake by mature ‘Royalty' rose over the course of one flowering cycle. Plants received a nutrient solution lacking N for 4, 8 or 16 days, after which one containing NO3−N (0.75 mM) was supplied for 4 days. N-deprivation resulted in a 2-3 fold increase in N uptake rate compared to control plants supplied continuously with N. The magnitude of this deprivation-enhanced N uptake was not affected by either the duration of N-deprivation or the plant developmental stage. Over the course of the flowering cycle, the total cumulative N uptake by the plants was 95, 66, and 44% of the control plants in the 4, 8 and 16-day deprivation treatments, respectively. A characteristic diurnal pattern of N uptake occurred in both N-starved and control plants. Uptake oscillated between minimum rates in the morning and maximum rates in the evening, the latter occurring 4-6 hr after the maximum rate of transpiration. Kluwer Academic Publishers, 1996 deprivation nationallicence intermitten nationallicence nitrogen nationallicence roses nationallicence uptake nationallicence Cabrera Raul Department of Plant Science, Cook College, Rutgers University, 08903, New Brunswick, New Jersey, USA aut Evans Richard Department of Environmental Horticulture, University of California, 95616, Davis, CA, USA aut Paul J. Department of Environmental Horticulture, University of California, 95616, Davis, CA, USA aut Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl 179/1(1996-02-01), 73-79 0032-079X 179:1<73 1996 179 11104 https://doi.org/10.1007/BF00011644 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00011644 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cabrera Raul Department of Plant Science, Cook College, Rutgers University, 08903, New Brunswick, New Jersey, USA aut NATIONALLICENCE 700 1- Evans Richard Department of Environmental Horticulture, University of California, 95616, Davis, CA, USA aut NATIONALLICENCE 700 1- Paul J. Department of Environmental Horticulture, University of California, 95616, Davis, CA, USA aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl/ 179/1(1996-02-01), 73-79 0032-079X 179:1<73 1996 179 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer