Assessment of discretely measured indicators and maximum daily trunk shrinkage for detecting water stress in pomegranate trees
8 páginas.-- 7 figuras.-- 3 tablas.-- 50 referencias
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| Subjects: | Trunk diameter fluctuations, Water stress, Punica granatum, Plant water relations, |
| Online Access: | http://hdl.handle.net/10261/115929 |
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dig-irnas-es-10261-1159292017-09-25T10:23:34Z Assessment of discretely measured indicators and maximum daily trunk shrinkage for detecting water stress in pomegranate trees Galindo Egea, A. Rodríguez Hernández, Pedro Mellisho, C. D. Torrecillas, Emma Moriana, Alfonso Cruz, Z. N. Conejero Puente, Wenceslao Moreno Lucas, Félix Torrecillas Melendreras, Arturo Trunk diameter fluctuations Water stress Punica granatum Plant water relations 8 páginas.-- 7 figuras.-- 3 tablas.-- 50 referencias Measurements obtained by the continuous monitoring of trunk diameter fluctuations were comparedwith discrete measurements of midday stem water potential and midday leaf conductance (gl)in adult pomegranate trees (Punica granatum L. cv. Mollar de Elche). Control plants (T0) were irrigateddaily above their crop water requirements in order to attain non-limiting soil water conditions in 2009 and 2010, while T1 plants were subjected to water stress by depriving them of irrigation water for34 days in 2010, after which time irrigation was restored and plant recovery was studied for 7 days.T1 plants showed a substantial degree of water stress, which developed slowly. Maximum daily trunkshrinkage (MDS) was identified to be the most suitable plant-based indicator for irrigation scheduling inadult pomegranate trees, because its signal:noise ((T1/T0):coefficient of variation) ratio was higher thanthat for midday stem water potential((T1/T0):coefficient of variation) and gl((T0/T1):coefficient of variation). MDS increasedin response to water stress, but when the stemfell below ¿1.67 MPa, the MDS values decreased. Fornon-limiting water conditions, MDS could be predicted from mean daily air temperature (Tm) throughexponential equations fitted to pooled data across several seasons. First-order equations were alsoobtained by pooling data across several seasons to predict MDS from crop reference evapotranspira-tion (ETo), mean daily air vapour pressure deficit (VPDm), Tmand solar radiation (Rs), but these should beused only within a certain range of values (ETo, 2.1¿7.4 mm; VPDm, 0.64¿2.96 kPa; Tm, 12.1¿28.3¿C; Rs,119.4¿331.3 Wm¿2). Hence, automated MDS measurements have the potential to be used in irrigationscheduling of pomegranate, and these values can be normalized to non-limiting water conditions bylocally derived empirical relationships with meteorological variables. This research was supported by Ministerio de Ciencia e Innovación (MICINN) (CICYT/FEDER AGL2010-19201-C04-01AGR) and Agencia Española de Cooperación Internacional para el Desarrollo (AECID) (A1/035430/11) grants to the authors. 2013-06 2015-06-01T06:40:19Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1016/j.agrformet.2013.05.006 issn: 1433-6863 Agricultural and Forest Meteorology 180: 58- 65 (2013) http://hdl.handle.net/10261/115929 10.1016/j.agrformet.2013.05.006 Preprint http://dx.doi.org/10.1016/j.agrformet.2013.05.006 open Springer |
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Trunk diameter fluctuations Water stress Punica granatum Plant water relations Trunk diameter fluctuations Water stress Punica granatum Plant water relations |
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Trunk diameter fluctuations Water stress Punica granatum Plant water relations Trunk diameter fluctuations Water stress Punica granatum Plant water relations Galindo Egea, A. Rodríguez Hernández, Pedro Mellisho, C. D. Torrecillas, Emma Moriana, Alfonso Cruz, Z. N. Conejero Puente, Wenceslao Moreno Lucas, Félix Torrecillas Melendreras, Arturo Assessment of discretely measured indicators and maximum daily trunk shrinkage for detecting water stress in pomegranate trees |
| description |
8 páginas.-- 7 figuras.-- 3 tablas.-- 50 referencias |
| format |
artículo |
| topic_facet |
Trunk diameter fluctuations Water stress Punica granatum Plant water relations |
| author |
Galindo Egea, A. Rodríguez Hernández, Pedro Mellisho, C. D. Torrecillas, Emma Moriana, Alfonso Cruz, Z. N. Conejero Puente, Wenceslao Moreno Lucas, Félix Torrecillas Melendreras, Arturo |
| author_facet |
Galindo Egea, A. Rodríguez Hernández, Pedro Mellisho, C. D. Torrecillas, Emma Moriana, Alfonso Cruz, Z. N. Conejero Puente, Wenceslao Moreno Lucas, Félix Torrecillas Melendreras, Arturo |
| author_sort |
Galindo Egea, A. |
| title |
Assessment of discretely measured indicators and maximum daily trunk shrinkage for detecting water stress in pomegranate trees |
| title_short |
Assessment of discretely measured indicators and maximum daily trunk shrinkage for detecting water stress in pomegranate trees |
| title_full |
Assessment of discretely measured indicators and maximum daily trunk shrinkage for detecting water stress in pomegranate trees |
| title_fullStr |
Assessment of discretely measured indicators and maximum daily trunk shrinkage for detecting water stress in pomegranate trees |
| title_full_unstemmed |
Assessment of discretely measured indicators and maximum daily trunk shrinkage for detecting water stress in pomegranate trees |
| title_sort |
assessment of discretely measured indicators and maximum daily trunk shrinkage for detecting water stress in pomegranate trees |
| publisher |
Springer |
| url |
http://hdl.handle.net/10261/115929 |
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