Using sap flow sensors to study the influence of rootstock and mid-summer water deficit on transpiration of apple trees in South Africa

Muchena, L.; Dzikiti, Sebinasi; Lötze, E.; Midgley, S.J.E.

doi:10.17660/actahortic.2020.1300.26

Cited by 3 publications

(4 citation statements)

References 20 publications

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“…The correlation of SF to stomatal closure makes it a good indicator of water stress, as well as an estimate of transpiration rate and water loss [29,81], especially in woody crops [153,201]. This gives an idea of the amount of water to be added [29,[202][203][204]. For instance, sensors were able to detect differences in both the timing and amount of water used by irrigated and non-irrigated crops [205,206].…”

Section: Sap Flowmentioning

confidence: 99%

“…Cammalleri [208] suggested using micro-meteorological techniques (eddy covariance) with SF to effectively evaluate evapotranspiration to assess water stress. Moreover, the complex instrumentation and technical expertise required to interpret the results, as well as the need for constant calibration for each tree, limits its practical application [32,202].…”

Section: Sap Flowmentioning

confidence: 99%

“…A new sensor was evaluated by Lascano [209], allowing better thermal contact between the plant stem and the temperature sensors. CHPM has been shown to have limitations regarding the measurements of low SF rates since the heat pulse may dissipate by conduction before it reaches the measurement point [202,210]. Therefore, accurate measurements of SF are possible only above a minimum threshold sap velocity.…”

Section: Sap Flowmentioning

confidence: 99%

“…Nadezhdina [148] defined a SF index, which can be automated and continuously recorded, and was shown to be sensitive when applied to apples. Muchena [202] used SF to study the sensitivity of apple rootstock to deficit irrigation. Nicolas [221] showed that SF measurements could be used as an indicator in the automation of an irrigation schedule.…”

Section: Sap Flowmentioning

confidence: 99%

See 3 more Smart Citations

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: Sap Flowmentioning

confidence: 99%

Section: Sap Flowmentioning

confidence: 99%

Section: Sap Flowmentioning

confidence: 99%

Section: Sap Flowmentioning

confidence: 99%

See 2 more Smart Citations

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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Drip irrigation frequency leads to plasticity in root water uptake by apple trees

Brighenti,

Tagliavini,

Comiti

et al. 2024

Agricultural Water Management

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The daily minimum leaf turgor pressure can represent the water status of apple trees under drip irrigation

Chen,

Xu,

Wan

et al. 2024

Front. Plant Sci.

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IntroductionAccurate diagnosis of the water status of fruit trees is a prerequisite for precise irrigation. Measurement of leaf turgor pressure provides a means to explore the water utilization mechanisms of fruit trees and their responses to water stress. However, there are few studies on the use of daily minimum leaf turgor pressure (Ppmax) to indicate water information in apple tree.MethodsWe monitored Ppmax, stem flow rate (Vstem), leaf water potential, soil water, and the main meteorological factors under two drip irrigation levels (fully irrigated and under-irrigated) to elucidate the temporal dynamics of the daily leaf turgor minimum of apple trees and diagnose the water status of fruit trees.ResultsThe results showed that soil water deficiency could reduce leaf turgor pressure and increase Ppmax. In both years, the signal intensity and sensitivity of Ppmax were better than those of Vstem, and the sensitivity was 3.31 and 2.94 times of Vstem, respectively. Compared to Ppmax, Vstem had a higher correlation with meteorological factors and was more affected by meteorological conditions, independent of irrigation treatment. Ppmax was significantly negatively correlated with soil and leaf water potential, and its correlation coefficient was 2.58–4.89 times higher than that between Vstem and both.DiscussionThese results not only enhance our understanding of the water regulation strategies employed by apple trees under drought conditions but also provide a theoretical foundation for developing efficient water-saving practices and precision irrigation strategies for fruit trees.

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Using sap flow sensors to study the influence of rootstock and mid-summer water deficit on transpiration of apple trees in South Africa

Cited by 3 publications

References 20 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

Drip irrigation frequency leads to plasticity in root water uptake by apple trees

The daily minimum leaf turgor pressure can represent the water status of apple trees under drip irrigation

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