Plant Water Stress Detection Using Leaf Temperature and Microclimatic Information

2011 ◽  
Author(s):  
Vasu Udompetaikul ◽  
Shrini K Upadhyaya ◽  
David C Slaughter ◽  
Bruce D Lampinen ◽  
Ken A Shackel
Keyword(s):  
Water Stress ◽  
Leaf Temperature ◽  
Plant Water ◽  
Stress Detection ◽  
Plant Water Stress

Development of a Continuous Leaf Monitoring System to Predict Plant Water Status

2017 ◽  
Vol 60 (5) ◽  
pp. 1445-1455 ◽  
Author(s):  
Rajveer S. Dhillon ◽  
Shrini K. Upadhaya ◽  
Francisco Rojo ◽  
Jed Roach ◽  
Robert W. Coates ◽  
...  
Keyword(s):  
Water Stress ◽  
Data Collection ◽  
Water Status ◽  
Irrigation Scheduling ◽  
Leaf Temperature ◽  
Plant Water Status ◽  
Mesh Network ◽  
Plant Water ◽  
Plant Water Stress ◽  
Precision Irrigation

Abstract. There is increased demand for irrigation scheduling tools that support effective use of the limited supply of irrigation water. An efficient precision irrigation system requires water to be delivered based on crop needs by measuring or estimating plant water stress. Leaf temperature is a good indicator of water stress. In this study, a system was developed to monitor leaf temperature and microclimatic environmental variables to predict plant water stress. This system, called the leaf monitor, monitored plant water status by continuously measuring leaf temperature, air temperature, relative humidity, ambient light, and wind conditions in the vicinity of a shaded leaf. The system also included a leaf holder, a solar radiation diffuser dome, and a wind barrier for improved performance of the unit. Controlled wind speed and consistent light conditions were created around the leaf to reduce the effect of nuisance variables on leaf temperature. The leaf monitor was incorporated into a mesh network of wireless nodes for sensor data collection and remote valve control. The system was evaluated for remote data collection in commercial orchards. Experiments were conducted during the 2013 and 2014 growing seasons in walnut () and almond () orchards. The system was found to be reliable and capable of providing real-time visualization of the data remotely, with minimal technical problems. Leaf monitor data were used to develop modified crop water stress index (MCWSI) values for quantifying plant water stress levels. Keywords: Almonds, CWSI, Infrared sensor, Irrigation scheduling, Leaf temperature, Nut crops, Plant water stress, Precision irrigation, Stem water potential, Walnuts, Wireless mesh network.

Optical fluorescence biosensor for plant water stress detection

2007 ◽  
Author(s):  
Jenny P. C. Chong ◽  
O. W. Liew ◽  
B. Q. Li ◽  
A. K. Asundi
Keyword(s):  
Water Stress ◽  
Plant Water ◽  
Stress Detection ◽  
Plant Water Stress ◽  
Optical Fluorescence ◽  
Fluorescence Biosensor

scholarly journals Usefulness of thermography for plant water stress detection in citrus and persimmon trees

2013 ◽  
Vol 168 ◽  
pp. 120-129 ◽  
Author(s):  
C. Ballester ◽  
M.A. Jiménez-Bello ◽  
J.R. Castel ◽  
D.S. Intrigliolo
Keyword(s):  
Water Stress ◽  
Plant Water ◽  
Stress Detection ◽  
Plant Water Stress

Plant Water Stress, Leaf Temperature, and Spider Mite (Acari: Tetranychidae) Outbreaks in California Vineyards

2010 ◽  
Vol 39 (4) ◽  
pp. 1232-1241 ◽  
Author(s):  
Menelaos C. Stavrinides ◽  
Kent M. Daane ◽  
Bruce D. Lampinen ◽  
Nicholas J. Mills
Keyword(s):  
Water Stress ◽  
Spider Mite ◽  
Leaf Temperature ◽  
Plant Water ◽  
Plant Water Stress
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