You need JavaScript to view this

Infrared thermometry and the crop water stress index. II. Sampling procedures and interpretation

Abstract

Infrared thermometry can be a valuable research and production tool for detecting and quantifying water stress in plants, as shown by a large volume of published research. Users of infrared thermometers (IRT) should be aware of the many equipment, environmental, and plant factors influencing canopy temperature measured by an IRT. The purpose of this paper is to describe factors influencing measured plant temperature, outline sampling procedures that will produce reliable Crop Water Stress Index (CWSI) values, and offer interpretations of CWSI and plant temperatures relative to crop production and other water stress parameters by reviewing previously conducted research. Factors that are considered are IRT condition, configuration, and position; psychrometer location; wind speed; solar radiation; time of day; leaf area and orientation; and appropriate non-water-stressed baseline equation. Standard sampling and CWSI calculation procedures are proposed. Use of CWSI with crops varying in type of response to water stress is described. Previously conducted research on plant temperatures or CWSI is tabulated by crop and water stress parameters measured. The paper provides valuable information to assist interested users of IRTs in making reliable water stress measurements. (author)
Authors:
Gardner, B. R.; [1]  Nielsen, D. C.; Shock, C. C.
  1. BP Research, Cleveland, OH (United States)
Publication Date:
Oct 15, 1992
Product Type:
Journal Article
Resource Relation:
Journal Name: Journal of production agriculture; Journal Volume: 5; Journal Issue: 4; Other Information: FAO/AGRIS record; ARN: US9411202; Country of input: International Atomic Energy Agency (IAEA)
Subject:
60 APPLIED LIFE SCIENCES; CANOPIES; CROPS; DROUGHTS; PLANTS; REVIEWS; SAMPLING; SOLAR RADIATION; WATER; WATER REQUIREMENTS
OSTI ID:
22370691
Country of Origin:
FAO
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0890-8524; TRN: XF15A2123076043
Availability:
Also available on-line: http://www.ars.usda.gov/SP2UserFiles/Place/30100000/1990-1999documents/267%201992%20Gardner%20JPA.pdf
Submitting Site:
INIS
Size:
page(s) 466-475
Announcement Date:
Aug 04, 2015

Citation Formats

Gardner, B. R., Nielsen, D. C., and Shock, C. C. Infrared thermometry and the crop water stress index. II. Sampling procedures and interpretation. FAO: N. p., 1992. Web. doi:10.2134/jpa1992.0466.
Gardner, B. R., Nielsen, D. C., & Shock, C. C. Infrared thermometry and the crop water stress index. II. Sampling procedures and interpretation. FAO. doi:10.2134/jpa1992.0466.
Gardner, B. R., Nielsen, D. C., and Shock, C. C. 1992. "Infrared thermometry and the crop water stress index. II. Sampling procedures and interpretation." FAO. doi:10.2134/jpa1992.0466. https://www.osti.gov/servlets/purl/10.2134/jpa1992.0466.
@misc{etde_22370691,
title = {Infrared thermometry and the crop water stress index. II. Sampling procedures and interpretation}
author = {Gardner, B. R., Nielsen, D. C., and Shock, C. C.}
abstractNote = {Infrared thermometry can be a valuable research and production tool for detecting and quantifying water stress in plants, as shown by a large volume of published research. Users of infrared thermometers (IRT) should be aware of the many equipment, environmental, and plant factors influencing canopy temperature measured by an IRT. The purpose of this paper is to describe factors influencing measured plant temperature, outline sampling procedures that will produce reliable Crop Water Stress Index (CWSI) values, and offer interpretations of CWSI and plant temperatures relative to crop production and other water stress parameters by reviewing previously conducted research. Factors that are considered are IRT condition, configuration, and position; psychrometer location; wind speed; solar radiation; time of day; leaf area and orientation; and appropriate non-water-stressed baseline equation. Standard sampling and CWSI calculation procedures are proposed. Use of CWSI with crops varying in type of response to water stress is described. Previously conducted research on plant temperatures or CWSI is tabulated by crop and water stress parameters measured. The paper provides valuable information to assist interested users of IRTs in making reliable water stress measurements. (author)}
doi = {10.2134/jpa1992.0466}
journal = {Journal of production agriculture}
issue = {4}
volume = {5}
journal type = {AC}
place = {FAO}
year = {1992}
month = {Oct}
}