Plant Biosensors Analysis for Monitoring Nectarine Water Status DOI Creative Commons
María R. Conesa, Wenceslao Conejero, Juan Vera

et al.

Biosensors, Journal Year: 2024, Volume and Issue: 14(12), P. 583 - 583

Published: Nov. 30, 2024

The real-time monitoring of plant water status is an important issue for digital irrigation to increase productivity. This work focused on a comparison three biosensors that continuously evaluate status: trunk microtensiometers (MTs), time-domain reflectometry (TDR), and LVDT sensors. During the summer autumn seasons (DOY 150–300), nectarine trees were subjected four different consecutive periods based soil Management Allowed Deficit (MAD) concept, namely: MAD10 (light deficit); MAD50 (moderate MAD100 (severe deficit), MAD0 (full irrigation). Measurements stem potential (Ψstem) leaf gas exchange recorded representative days. A continuous measurement Ψtrunk, MDS, Ktrunk revealed deficits imposed soil. highest deficit observed at end period (Ψstem = −2.04 MPa Ɵv 17%) resulted in minimum value Ψtrunk (−1.81 MPa). maximum MDS (408 µm) was earlier than motivated by low sensitivity < −1.2 Ψstem −1.5 due decrease tissue elasticity when severe conditions are reached. Both more dependent content, while responsive environmental changes. weakest indicator determining status, although expressed as daily fraction depletion (KtrunkFD), it improved, evidencing process hysteresis. showed sensitivity, suggesting use MTs valuable biosensor agrosystems.

Language: Английский

Continuous Stem Water Potential Measurements of a Diffuse‐Porous Tree Species Offer New Insights Into Tree Water Relations DOI Creative Commons
Simon Haberstroh,

Fabio Scarpa,

Stefan Seeger

et al.

Ecohydrology, Journal Year: 2025, Volume and Issue: 18(1)

Published: Jan. 1, 2025

ABSTRACT Water potential is a crucial parameter for assessing tree water status and hydraulic strategies. However, methods measuring potential, such as the Scholander pressure chamber, are destructive, discontinuous difficult to perform in tall forests. Consequently, important dynamics potentials, particularly during short‐term drought, capture. Recent advancements have introduced low‐maintenance sensors capable of continuous, high‐resolution stem potentials. We evaluated these temperate, diffuse‐porous species ( Carpinus betulus ) over growing season marked by dry‐down periods heat. Measurements leaf sap flow environmental factors (air temperature, vapour deficit soil content) were conducted. Midday potentials C. reached minimum values −3.39 ± 0.10 MPa exhibited pronounced seasonal fluctuations, mirroring changes conditions flow. Stem correlated well with Scholander‐type measurements predawn R 2 = 0.98) but demonstrated an offset absolute midday 0.71) diurnal measurements. Minimum maximum expressed time lag showed distinct hysteresis. In this first assessment, agreement measurements, parameters suggests tested yield reliable data, especially predawn, need further validation conditions. If applicable other species, could significantly advance our understanding relations their role forest drought responses.

Language: Английский

Citations

0
Apple trees’ behavior to a single-season megadrought stress DOI Creative Commons
J. Girona, M. Mata,

J. del Campo

et al.

Irrigation Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Language: Английский

Citations

0
Design and development of an IoT-based dendrometer system for real-time trunk diameter monitoring of Christmas trees DOI Creative Commons

Thomas Rose,

Nawab Ali, Younsuk Dong

et al.

Smart Agricultural Technology, Journal Year: 2024, Volume and Issue: unknown, P. 100765 - 100765

Published: Dec. 1, 2024

Language: Английский

Citations

1
Assessment of Trunk Diameter Fluctuation-Derived Indices for Detecting Water Stress in Sweet Cherry Trees DOI Open Access
Pedro José Blaya-Ros, Víctor Blanco, Roque Torres-Sánchez

et al.

Water, Journal Year: 2024, Volume and Issue: 16(15), P. 2186 - 2186

Published: Aug. 1, 2024

The continuous and reliable assessment of crop water status through indicators enables the sustainable management resources, especially in arid or semi-arid climate scenarios exacerbated by change. Therefore, main objective this study is to determine compare sensitivity indices derived from trunk diameter fluctuations for accurate automatic detection changes cherry trees. stress examined are maximum daily shrinkage (MDS), growth rate (TGR), early (EDS), late (LDS). During two growing seasons, ‘Lapins’ sweet trees were subjected different levels: (i) a control treatment irrigated at 115% evapotranspiration demand ensure non-limiting conditions, (ii) deficit irrigation treatment, with withholding cycles. Vegetative was affected stress. Trunk exhibited high variability did not clearly show differences plant status. Both EDS MDS showed third-degree polynomial relationship Ψstem. had lineal Ψstem up −1.4 MPa; however, further decreases necessarily lead increased MDS. In contrast, became non-linear −1.8 MPa, making it more useful indicator than when detecting severe conditions. frequencies both decreased 85% 35% increased. information provided frequencies, along their values, could be as tools

Language: Английский

Citations

0
Plant Biosensors Analysis for Monitoring Nectarine Water Status DOI Creative Commons
María R. Conesa, Wenceslao Conejero, Juan Vera

et al.

Biosensors, Journal Year: 2024, Volume and Issue: 14(12), P. 583 - 583

Published: Nov. 30, 2024

The real-time monitoring of plant water status is an important issue for digital irrigation to increase productivity. This work focused on a comparison three biosensors that continuously evaluate status: trunk microtensiometers (MTs), time-domain reflectometry (TDR), and LVDT sensors. During the summer autumn seasons (DOY 150–300), nectarine trees were subjected four different consecutive periods based soil Management Allowed Deficit (MAD) concept, namely: MAD10 (light deficit); MAD50 (moderate MAD100 (severe deficit), MAD0 (full irrigation). Measurements stem potential (Ψstem) leaf gas exchange recorded representative days. A continuous measurement Ψtrunk, MDS, Ktrunk revealed deficits imposed soil. highest deficit observed at end period (Ψstem = −2.04 MPa Ɵv 17%) resulted in minimum value Ψtrunk (−1.81 MPa). maximum MDS (408 µm) was earlier than motivated by low sensitivity < −1.2 Ψstem −1.5 due decrease tissue elasticity when severe conditions are reached. Both more dependent content, while responsive environmental changes. weakest indicator determining status, although expressed as daily fraction depletion (KtrunkFD), it improved, evidencing process hysteresis. showed sensitivity, suggesting use MTs valuable biosensor agrosystems.

Language: Английский

Citations

0