caa a22 4500 463160304 CHVBK 20180406164745.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10535-007-0150-5 doi (NATIONALLICENCE)springer-10.1007/s10535-007-0150-5 Daily variations in water relations of apricot trees under different irrigation regimes [Elektronische Daten] [M. Ruiz-Sánchez, R. Domingo, A. Pérez-Pastor] Mature apricot (Prunus armeniaca L. cv. Búlida) trees, growing under field conditions, were submitted to two drip irrigation treatments: a control (T1), irrigated to 100 % of seasonal crop evapotranspiration (ETc), and a continuous deficit (T2), irrigated to 50 % of the control throughout the year. The behaviour of leaf water potential and its components, leaf conductance and net photosynthesis were studied at three different times during the growing season, when they revealed a diurnal and seasonal pattern in response to water stress, evaporative demand of the atmosphere and leaf age. The deficit-irrigated trees showed, among other effects, a pronounced decrease in leaf water potential (ψw), decreased in leaf conductance (gs) and no osmotic adjustment. For this reason, gl and ψw can be considered good indicators of mature apricot tree water status and can therefore be used for irrigation scheduling. Institute of Experimental Botany, ASCR, 2007 leaf stomatal conductance nationallicence leaf water potential nationallicence net photosynthesis nationallicence Prunus armeniaca L nationallicence water deficit nationallicence ci : internal CO2 concentration nationallicence ETc : crop evapotranspiration nationallicence ETo : reference evapotranspiration nationallicence gs : leaf stomatal conductance nationallicence LM/LA : leaf mass/leaf area ratio nationallicence PAR : photosynthetically active radiation nationallicence PN : net photosynthetic rate nationallicence SM/DM : water saturated mass/dry mass ratio nationallicence Tl : leaf temperature nationallicence VPD : vapour pressure deficit nationallicence ψo : leaf osmotic potential nationallicence ψos : leaf osmotic potential at full saturation nationallicence ψp : leaf pressure potential nationallicence ψw : leaf water potential nationallicence Ruiz-Sánchez M. Dpto. Riego, Centro de Edafología y Biología Aplicada del Segura, CSIC, P.O. Box 164, E-30100, Murcia, Spain aut Domingo R. Dpto. Producción Vegetal, ETSIA-UPCT, Paseo Alfonso XIII, 52, E-30203, Cartagena, Spain aut Pérez-Pastor A. Dpto. Producción Vegetal, ETSIA-UPCT, Paseo Alfonso XIII, 52, E-30203, Cartagena, Spain aut Biologia Plantarum Springer Netherlands 51/4(2007-12-01), 735-740 0006-3134 51:4<735 2007 51 10535 https://doi.org/10.1007/s10535-007-0150-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10535-007-0150-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ruiz-Sánchez M. Dpto. Riego, Centro de Edafología y Biología Aplicada del Segura, CSIC, P.O. Box 164, E-30100, Murcia, Spain aut NATIONALLICENCE 700 1- Domingo R. Dpto. Producción Vegetal, ETSIA-UPCT, Paseo Alfonso XIII, 52, E-30203, Cartagena, Spain aut NATIONALLICENCE 700 1- Pérez-Pastor A. Dpto. Producción Vegetal, ETSIA-UPCT, Paseo Alfonso XIII, 52, E-30203, Cartagena, Spain aut NATIONALLICENCE 773 0- Biologia Plantarum Springer Netherlands 51/4(2007-12-01), 735-740 0006-3134 51:4<735 2007 51 10535 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer