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Changes in spectral properties of detached birch leavesA study conducted in order to determine the rate of changes in spectral properties of detached leaves and to evaluate the effectiveness of low temperature and cytokinins for delaying the changes, is examined. For five minutes, leaves from red birch are immersed in water or 0.001 M BAP, and then stored in plastic bags in the dark at either 5 or 25 C. Using a spectroradiometer and an integrating sphere, total directional-hemispherical reflectance and transmittance of the adaxial surface of the leaves are measured over the 400-1100 nm wavelength region. The results indicate that for leaves stored at 5 C for one week, the changes in the spectral properties are less than 5 percent of the initial values, whereas storage at 25 C promotes rapid senescence and large changes in the spectral properties. It is shown that low temperature is more effective than BAP in delaying senescence.
Document ID
19850056243
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Daughtry, C. S. T.
(Purdue Univ. West Lafayette, IN, United States)
Biehl, L. L.
(Purdue University West Lafayette, IN, United States)
Date Acquired
August 12, 2013
Publication Date
June 1, 1985
Publication Information
Publication: Remote Sensing of Environment
Volume: 17
ISSN: 0034-4257
Subject Category
Earth Resources And Remote Sensing
Accession Number
85A38394
Funding Number(s)
CONTRACT_GRANT: NAS9-16528
Distribution Limits
Public
Copyright
Other

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