Efficiency of tree-based water status indicators at the onset of water deficit in citrus

Elsayed-Farag, S.; Melgar, Juan Carlos

doi:10.1007/s13580-015-0136-8

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…In contrast, Martín-Palomo [111] concluded that MDS was not a useful indicator for irrigation scheduling in almonds because of the great trunk growth, suggesting the tree growth rate as a more sensitive stress indicator. In citrus [180] and avocado [105], it was found that absolute MDS values show large day-to-day variations due to the variable environmental conditions. Elsayed-Farag and Melgar [180] suggested the use of the MDS ratio in automatic irrigation scheduling, while the authors of ref.…”

Section: Stem Diametermentioning

confidence: 99%

“…In citrus [180] and avocado [105], it was found that absolute MDS values show large day-to-day variations due to the variable environmental conditions. Elsayed-Farag and Melgar [180] suggested the use of the MDS ratio in automatic irrigation scheduling, while the authors of ref. [105] concluded that the evaluation of the impacts of the various local phenological and environmental factors is crucial since MDV represents water stress history rather than actual PWS.…”

Section: Stem Diametermentioning

confidence: 99%

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Plant-Based Methodologies and Approaches for Estimating Plant Water Status of Mediterranean Tree Species: A Semi-Systematic Review

et al. 2022

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Global climate change presents a threat for the environment, and it is aggravated by the mismanagement of water use in the agricultural sector. Since plants are the intermediate component of the soil–plant–atmosphere continuum, and their physiology is directly affected by water availability, plant-based approaches proved to be sensitive and effective in estimating plant water status and can be used as a possible water-saving strategy in crop irrigation scheduling. This work consists of two parts: the first part extensively reviews the plant-based methods and approaches that are most applied to monitor the plant water status (PWS), the different technologies available, the gaps, and the possibility of further improvements in establishing a sustainable irrigation schedule. The various approaches are described, and the differences between conventional and recent improved methods are analyzed. The second part is an extensive dataset survey of 83 publications from 2012 to 2022 that applied the main monitoring methodologies and approaches for water status assessment in fruit and nut tree crops cultivated in a Mediterranean climate. The aim of this work is to serve as a practical reference to deepen reader knowledge on PWS and enhance researchers to identify gaps and potential advances in designing user-friendly monitoring technologies.

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Section: Stem Diametermentioning

confidence: 99%

Section: Stem Diametermentioning

confidence: 99%

Plant-Based Methodologies and Approaches for Estimating Plant Water Status of Mediterranean Tree Species: A Semi-Systematic Review

et al. 2022

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Evaluating soil evaporation and transpiration responses to alternate partial rootzone drying to minimise water losses

Puértolas

Dodd

2022

Plant Soil

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Purpose Partial rootzone drying (PRD) typically alternates the dry and irrigated parts of the rootzone, but how plant physiology and soil evaporation respond to this alternation are poorly understood. Methods Dwarf tomatoes were grown in small split pots comprising two 250 cm3 compartments and fully irrigated (WW: 100% ETc) or subjected to three deficit irrigation treatments (75% ETc): homogeneous rootzone drying (HRD; irrigation evenly distributed); fixed PRD (PRD-F, irrigation applied to one fixed compartment); alternated PRD (PRD-A: as PRD-F but alternating the irrigated compartment every three days). Stem diameter and evapotranspiration were monitored during alternation cycles. The day after alternating the irrigated side of the root system, whole-plant gas exchange and leaf water potential were measured following step increments of vapour pressure deficit. Results Alternation did not affect stem diameter contractions or evapotranspiration, which were lower in HRD than in the two PRD treatments. However, soil evaporation was higher in HRD and PRD-A after alternation than in PRD-F. Following alternation, higher soil evaporation was counteracted by decreased transpiration compared with fixed PRD, despite similar overall soil water content. VPD increments did not change this pattern. Conclusion Irrigation placement determined soil moisture distribution, which in turn affected soil evaporation and whole plant gas exchange. Optimising the frequency of PRD alternation to maximise water savings while ensuring productive water use needs to consider how soil moisture distribution affects both soil evaporation and plant water use.

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Review on Partial Root-zone Drying irrigation: Impact on crop yield, soil and water pollution

Slamini

Sbaa

Arabi

et al. 2022

Agricultural Water Management

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Efficiency of tree-based water status indicators at the onset of water deficit in citrus

Cited by 4 publications

References 18 publications

Plant-Based Methodologies and Approaches for Estimating Plant Water Status of Mediterranean Tree Species: A Semi-Systematic Review

Plant-Based Methodologies and Approaches for Estimating Plant Water Status of Mediterranean Tree Species: A Semi-Systematic Review

Evaluating soil evaporation and transpiration responses to alternate partial rootzone drying to minimise water losses

Review on Partial Root-zone Drying irrigation: Impact on crop yield, soil and water pollution

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