Assessment of peach tree responses to irrigation water ficits by continuous monitoring of trunk diameter changes

Cohen, M.; Goldhamer, David A.; Fereres, E.; Girona, J.; Mata, M.

doi:10.1080/14620316.2001.11511327

Cited by 64 publications

(50 citation statements)

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“…5, MDS might even decrease with increasing vine water stress. This behavior has been observed in some cases (Cohen et al 2001;Ortuño et al 2006) but not in many others (Marsal et al 2002;Fereres and Goldhamer 2003;Intrigliolo and Castel 2006b). This diVerence mainly depends on the level of plant water stress reached and also on the tissue ability to retain water against a water potential gradient.…”

Section: Discussionmentioning

confidence: 96%

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Evaluation of grapevine water status from trunk diameter variations

Intrigliolo

Castel

2007

Irrig Sci

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We evaluated the usefulness of short-term trunk diameter variations (TDV) as water stress indicator in Weld-grown grapevines cv. Tempranillo. Two indices were calculated from TDV, maximum daily trunk shrinkage (MDS), and trunk growth rate (TGR). The seasonal evolution of both indicators was compared with occasional determinations of pre-dawn leaf water potential and stem water potential, measured at early morning ( s em ) and at midday ( s md ) in irrigated and non-irrigated vines. In the second season, the eVect of crop load on the vine water status indicators was also studied. Crop load did not aVect either the vine water relations or the TDV. All water potential determinations had much lower variability and were more sensitive than both MDS and TGR to water restrictions. The ability of both indices to detect plant water stress varied largely depending upon the phenological period. In fact, MDS and TGR were only able to detect vine water stress during a short period of time before veraison. During this period, TGR was linearly related to both s em and s md , while for MDS a curvilinear, quadratic equation, better described the relationship with plant water status. After veraison no apparent relationship existed between plant water status and MDS or TGR. Hence, our results question the practical use of both MDS and TGR as variables to automate irrigation scheduling for grapevine.

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Section: Discussionmentioning

confidence: 96%

“…In deciduous fruit (Cohen et al 2001;Marsal et al 2002;Intrigliolo and Castel 2006b) and citrus (Ortuño et al 2006) tree species, MDS and TGR were found to be responsive to changes in moisture availability. In all these cases plant water deWcit increased trunk shrinkage and decreased trunk growth.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of grapevine water status from trunk diameter variations

Intrigliolo

Castel

2007

Irrig Sci

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“…Other studies have suggested that maximum daily trunk shrinkage (MDTS), a parameter derived from TDC, is a highly sensitive water stress indicator in deciduous trees (Goldhamer et al, 1999;Cohen et al, 2001). Maximum daily trunk shrinkage has been used as plant water status indicator in several crop species including table grape and wine grape (Gurovich, 1997;Gurovich and Saggé, 2005), peach (Prunus persica [L.] Batsch., Sellés and Berger, 1990;Goldhamer and Fereres, 2001;Naor and Cohen, 2003), avocado (Gurovich et al, 2006) and other fruit crops (Cohen et al, 2001;Moriana and Fereres, 2002;Fereres and Goldhamer, 2003). The high sensitivity of MDTS could represent an advantage for avocado irrigation scheduling where early detection of stress is critical.…”

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confidence: 99%

Sensitivity and Variability of Two Plant Water Stress Indicators: Exploring Criteria for Choosing a plant Monitoring Method for Avocado Irrigation Management

Celedon¹,

Gil

Ferreyra

et al. 2012

Chilean J. Agric. Res.

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Avocado (Persea americana Mill.) is a fruit-tree species highly susceptible to water deficit, which makes irrigation management a difficult task for growers. When irrigation is inadequate, trees suffer growth reduction, fruit losses, and roots damage. This study addressed the question of how to assess water stress in avocado trees and the considerations to choose an indicator to measure the plant water stress. In this work the sensitivity and variability of two water stress indicators in response to water deficit were analyzed: stem water potential (SWP) and maximum daily trunk shrinkage (MDTS). During a period of high water demand, avocado trees planted in a clay loam soil were subjected to water stress by withholding irrigation and compared to control trees irrigated according to the maximal crop evapotranspiration. During the study, avocado trees reached a minimum SWP of -0.9 MPa and a maximum MDTS of ~ 285 µm. To better understand avocado tree response to water deficit, leaf abscisic acid, stomatal conductance, soil moisture, and vapor pressure deficit were also measured. Interestingly, it was found that water stress indicators showed differences with control after 3 d of withholding irrigation. It was possible to observe that MDTS was more sensitive in detecting water stress than SWP, signal strength of 4.5 vs. 1.2 respectively; however, MDTS higher variability counteracted its performance as stress indicator, coefficient of variation of 32% vs. 9%, respectively. This study confirms that monitoring water stress is an important tool for avocado irrigation management and should consider both, the sensitivity and variability of the indicator.

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“…Linear variable differential transformers (LVDT's) are currently used to measure the daily diurnal change of stem diameter (Cohen et al 2001). These sensors measure the change in tissue water status that occurs during the day.…”

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confidence: 99%

Sensitivity of Trunk Diameter Fluctuations inVitis viniferaL. Tempranillo and Cabernet Sauvignon Cultivars

Montoro¹,

Fereres²,

López-Urrea³

et al. 2011

Am. J. Enol. Vitic.

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Abstract:The effects of different applied water amounts on the behavior of parameters derived from trunk diameter fluctuations were studied during three consecutive seasons (2004 to 2006) in a mature vineyard planted with Vitis vinifera cv. Tempranillo and cv. Cabernet Sauvignon in Albacete (Castilla-La Mancha, Spain). Maximum daily trunk shrinkage (MDS) was calculated from trunk diameter fluctuations. The response of MDS to different irrigation treatments varied in the amplitude of the signal between the two cultivars. Tempranillo MDS was significantly higher than that of Cabernet Sauvignon in the period before veraison for the three years. MDS decreased in magnitude after veraison regardless of irrigation treatment and tended to be similar in the two varieties, except for one year where there were cultivar differences in yield caused by differential effects of a frost. Irrigation treatment differences in MDS were significant in 2004 and 2005 at pre-and postveraison, while in 2006 they were nonsignificant, possibly due to the very low yield caused by a late frost which differentially affected the cultivars, suggesting that yield level may be another factor to consider when attempting to use MDS for irrigation management. It appears that the use of trunk diameter sensors for irrigation scheduling in winegrapes would require a specific calibration for the different cultivars.

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Assessment of peach tree responses to irrigation water ficits by continuous monitoring of trunk diameter changes

Cited by 64 publications

References 0 publications

Evaluation of grapevine water status from trunk diameter variations

Evaluation of grapevine water status from trunk diameter variations

Sensitivity and Variability of Two Plant Water Stress Indicators: Exploring Criteria for Choosing a plant Monitoring Method for Avocado Irrigation Management

Sensitivity of Trunk Diameter Fluctuations inVitis viniferaL. Tempranillo and Cabernet Sauvignon Cultivars

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