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Rapid Detection of Manganese Deficiency in Conifer Needles by Electron Spin Resonance Spectroscopy
Author(s) -
Laggner Peter,
Mandl Ruth,
Schuster Annemarie,
Zechner Monika,
Grill Dieter
Publication year - 1988
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198817221
Subject(s) - manganese , electron paramagnetic resonance , spectral line , chemistry , spectroscopy , nuclear magnetic resonance , analytical chemistry (journal) , physics , environmental chemistry , organic chemistry , astronomy , quantum mechanics
ESR spectroscopic findings on spruce trees could form the basis of a rapid method for the detection of damage to conifers. The correlation between forrest damage and manganese deficiency in the case of conifers has already been reported. Three types of spectra (A, B, C) have now been distinguished. Types A and B are very similar to each other. They contain only weak signals; in the needles investigated, Mn contents of 20–90 and 6–30 ppm respectively were determined. Type C is the six‐line spectrum of Mn II (>50 ppm Mn). Only the needles of healthy trees gave ESR spectra of type C. Manganese deficiency, as demonstrated by the absence of type C spectra, is thus a good indicator for the recognition of damage to conifers.