Comparison of Hand-held Sensor Suite and Thermal Imaging Technique to Measure Canopy Temperature in Orchard Crops for Plant Water Status Predictions

2014 ◽  
Keyword(s):  
Thermal Imaging ◽  
Imaging Technique ◽  
Water Status ◽  
Canopy Temperature ◽  
Plant Water Status ◽  
Plant Water ◽  
Sensor Suite

scholarly journals Development and validation of an automatic thermal imaging process for assessing plant water status

2011 ◽  
Vol 98 (10) ◽  
pp. 1497-1504 ◽  
Author(s):  
M.A. Jiménez-Bello ◽  
C. Ballester ◽  
J.R. Castel ◽  
D.S. Intrigliolo
Keyword(s):  
Thermal Imaging ◽  
Water Status ◽  
Plant Water Status ◽  
Plant Water ◽  
Development And Validation

scholarly journals Continuously Monitored Canopy Temperature as a Proxy for Plant Water Status

2015 ◽  
Vol 06 (14) ◽  
pp. 2287-2302 ◽  
Author(s):  
James R. Mahan ◽  
Andrew W. Young ◽  
Paxton Payton
Keyword(s):  
Water Status ◽  
Canopy Temperature ◽  
Plant Water Status ◽  
Plant Water

scholarly journals Feasibility of Low-Cost Thermal Imaging for Monitoring Water Stress in Young and Mature Sweet Cherry Trees

2020 ◽  
Vol 10 (16) ◽  
pp. 5461 ◽  
Author(s):  
Pedro José Blaya-Ros ◽  
Víctor Blanco ◽  
Rafael Domingo ◽  
Fulgencio Soto-Valles ◽  
Roque Torres-Sánchez
Keyword(s):  
Water Stress ◽  
Thermal Imaging ◽  
Sweet Cherry ◽  
Water Status ◽  
Low Cost ◽  
Plant Water Status ◽  
Control Treatment ◽  
Plant Water ◽  
Crop Water Stress Index ◽  
Cherry Trees

Infrared thermography has been introduced as an affordable tool for plant water status monitoring, especially in regions where water availability is the main limiting factor in agricultural production. This paper outlines the potential applications of low-cost thermal imaging devices to evaluate the water status of young and mature sweet cherry trees (Prunus avium L.) submitted to water stress. Two treatments per plot were assayed: (i) a control treatment irrigated to ensure non-limiting soil water conditions; and (ii) a water-stress treatment. The seasonal evolution of the temperature of the canopy (Tc) and the difference between Tc and air temperature (ΔT) were compared and three thermal indices were calculated: crop water stress index (CWSI), degrees above control treatment (DAC) and degrees above non-water-stressed baseline (DANS). Midday stem water potential (Ψstem) was used as the reference indicator of water stress and linear relationships of Tc, ΔT, CWSI, DAC and DANS with Ψstem were discussed in order to assess their sensitivity to quantify water stress. CWSI and DANS exhibited strong relationships with Ψstem and two regression lines to young and mature trees were found. The promising results obtained highlight that using low-cost infrared thermal devices can be used to determine the plant water status in sweet cherry trees.

High-resolution UAV-based thermal imaging to estimate the instantaneous and seasonal variability of plant water status within a vineyard

2017 ◽  
Vol 183 ◽  
pp. 49-59 ◽  
Author(s):  
L.G. Santesteban ◽  
S.F. Di Gennaro ◽  
A. Herrero-Langreo ◽  
C. Miranda ◽  
J.B. Royo ◽  
...  
Keyword(s):  
High Resolution ◽  
Thermal Imaging ◽  
Seasonal Variability ◽  
Water Status ◽  
Plant Water Status ◽  
Plant Water

scholarly journals Leaf Water Relations in Lime Trees Grown under Shade Netting and Open-Air

Plants ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 510 ◽  
Author(s):  
Ana Belén Mira-García ◽  
Wenceslao Conejero ◽  
Juan Vera ◽  
María Carmen Ruiz-Sánchez
Keyword(s):  
Gas Exchange ◽  
Leaf Gas Exchange ◽  
Water Status ◽  
Canopy Temperature ◽  
Net Photosynthesis ◽  
Irrigation Scheduling ◽  
Plant Water Status ◽  
Plant Water ◽  
Stem Water Potential ◽  
Thermal Index

Physiological plant water status indicators are useful for managing precision irrigation in regions with limited water resources. The aim of this work was to evaluate the effect of shade netting on the diurnal and seasonal variations of several plant water status indicators in young lime trees (Citrus latifolia Tan., cv. Bearss), grown at the CEBAS-CSIC experimental station in Murcia, Spain. Stem water potential (Ψstem), leaf gas exchange (net photosynthesis (Pn) and stomatal conductance (gs)), and canopy temperature (Tc) were measured on representative days of winter and summer. The Ψstem daily pattern was quite similar in both seasons under both conditions. However, the circadian rhythm of leaf gas exchange was affected by shade conditions, especially in summer, when shaded leaves showed maximum gs values for a longer time, allowing higher net photosynthesis (37%). Canopy temperature behaved similarly in both conditions, nevertheless, lower values were recorded in open-air than in shaded trees in the two seasons. The canopy-to-air temperature difference (Tc − Ta), however, was lower in shaded trees during the daylight hours, indicating the higher degree of leaf cooling that was facilitated by high gs values. The possibility of continuously recording Tc makes it (or the proposed canopy thermal index, CTI) a promising index for precise irrigation scheduling. Shade netting was seen to favour gas exchange, suggesting that it may be considered alternative to open-air for use in semi-arid areas threatened by climate change.

The Method of Plant Water Status Measurement in Sweet Potato (Ipomoea Batatas (L) Lam.)

2010 ◽  
Vol 7 (1) ◽  
Author(s):  
Saraswati Prabawardani
Keyword(s):  
Water Content ◽  
Sweet Potato ◽  
Relative Water Content ◽  
Water Status ◽  
Plant Water Status ◽  
Equilibration Time ◽  
Plant Water ◽  
Font Size ◽  
Potato Leaf ◽  
Relative Water

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Plant Water Status in Relation to Clouds 1

1973 ◽  
Vol 65 (4) ◽  
pp. 677-678 ◽  
Author(s):  
J. R. Stansell ◽  
Betty Klepper ◽  
V. Douglas Browning ◽  
H. M. Taylor
Keyword(s):  
Water Status ◽  
Plant Water Status ◽  
Plant Water
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