Previsual detection of stressed coniferous trees

<p>The study consisted of two parts: following the fade rates of killed field-grown Virginia pine (<u>Pinus virginiana</u> Mill.); and to study the effects of different stresses on seedlings.</p> <p> Foliage fade rates of killed field-grown Virginia pine varied with the...

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Main Author: Alger, Larry Allen
Other Authors: Entomology
Format: Others
Published: Virginia Tech 2014
Subjects:
Online Access:http://hdl.handle.net/10919/41077
http://scholar.lib.vt.edu/theses/available/etd-02132009-172201/
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spelling ndltd-VTETD-oai-vtechworks.lib.vt.edu-10919-410772021-05-05T05:40:24Z Previsual detection of stressed coniferous trees Alger, Larry Allen Entomology Heikkenen, Herman John Grayson, James McD. Bunce, George Edwin Aleida, S. P. foliage fade LD5655.V855 1974.A4 <p>The study consisted of two parts: following the fade rates of killed field-grown Virginia pine (<u>Pinus virginiana</u> Mill.); and to study the effects of different stresses on seedlings.</p> <p> Foliage fade rates of killed field-grown Virginia pine varied with the time of the year the tree was killed. Little variation in fade rates was found between years.</p> <p> Foliage of seedlings grown under stress due to: girdling; sevpring; defoliating; and drought, were studied by paper chromntographv, cross sectioning, and photography. The four pigments found appeared to decline proportionately as the foliege went from green to red. An error in technique resulted in uninterpretable needle cross sections. Photography using black and white, black and white infrared, color, and color infrared films gave no previsual detection of stress.</p> Master of Science 2014-03-14T21:29:15Z 2014-03-14T21:29:15Z 1974-05-06 2009-02-13 2009-02-13 2009-02-13 Thesis Text etd-02132009-172201 http://hdl.handle.net/10919/41077 http://scholar.lib.vt.edu/theses/available/etd-02132009-172201/ OCLC# 37591845 LD5655.V855_1974.A4.pdf In Copyright http://rightsstatements.org/vocab/InC/1.0/ 48 leaves BTD application/pdf application/pdf Virginia Tech
collection NDLTD
format Others
sources NDLTD
topic foliage fade
LD5655.V855 1974.A4
spellingShingle foliage fade
LD5655.V855 1974.A4
Alger, Larry Allen
Previsual detection of stressed coniferous trees
description <p>The study consisted of two parts: following the fade rates of killed field-grown Virginia pine (<u>Pinus virginiana</u> Mill.); and to study the effects of different stresses on seedlings.</p> <p> Foliage fade rates of killed field-grown Virginia pine varied with the time of the year the tree was killed. Little variation in fade rates was found between years.</p> <p> Foliage of seedlings grown under stress due to: girdling; sevpring; defoliating; and drought, were studied by paper chromntographv, cross sectioning, and photography. The four pigments found appeared to decline proportionately as the foliege went from green to red. An error in technique resulted in uninterpretable needle cross sections. Photography using black and white, black and white infrared, color, and color infrared films gave no previsual detection of stress.</p> === Master of Science
author2 Entomology
author_facet Entomology
Alger, Larry Allen
author Alger, Larry Allen
author_sort Alger, Larry Allen
title Previsual detection of stressed coniferous trees
title_short Previsual detection of stressed coniferous trees
title_full Previsual detection of stressed coniferous trees
title_fullStr Previsual detection of stressed coniferous trees
title_full_unstemmed Previsual detection of stressed coniferous trees
title_sort previsual detection of stressed coniferous trees
publisher Virginia Tech
publishDate 2014
url http://hdl.handle.net/10919/41077
http://scholar.lib.vt.edu/theses/available/etd-02132009-172201/
work_keys_str_mv AT algerlarryallen previsualdetectionofstressedconiferoustrees
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