Remote sensing for site-specific management of biotic and abiotic stress in cotton

Show full item record

Title: Remote sensing for site-specific management of biotic and abiotic stress in cotton
Author: Falkenberg, Nyland Ray
Abstract: This study evaluated the applicability of remote sensing instrumentation for site - specific management of abiotic and biotic stress on cotton grown under a center pivot . Three different irrigation regimes (100 % , 75 % , and 50 % ETc ) were imposed on a cotton field to 1 ) monitor canopy temperatures of cotton with infrared thermometers (IRTs ) in order to pinpoint areas of biotic and abiotic stress , 2 ) compare aerial infrared photography to IRTs mounted on center pivots to correlate areas of biotic and abiotic stress , and 3 ) relate yield to canopy temperatures . Pivot -mounted IRTs and IR camera were able to differentiate water stress between the irrigation regimes , however , only the IR camera was effectively able to distinguish between biotic (cotton root rot ) and abiotic (drought ) stress with the assistance of groundtruthing . The 50 % ETc regime had significantly higher canopy temperatures , which were reflected in significantly lower lint yields when compared to the 75 % and 100 % ETc regimes . Deficit irrigation up to 75 % ETc had no impact on yield , indicating that water savings were possible without yield depletion .
URI: http : / /hdl .handle .net /1969 .1 /478
Date: 2004-09-30

Citation

Remote sensing for site-specific management of biotic and abiotic stress in cotton. Available electronically from http : / /hdl .handle .net /1969 .1 /478 .

Files in this item

Files Size Format View
etd-tamu-2004A-AGRO-Falkenberg-1.pdf 1.162Mb application/pdf View/Open

This item appears in the following Collection(s)

Show full item record

Search DSpace

Advanced Search

Browse