Phytohormones in needles of healthy and declining silver fir (Abies alba Mill.): I. Indole-3-acetic acid


Levels of indole-3-acetic acid (IAA) were determined in needles from silver fir (Abies alba Mill.) trees in the northern Black Forest. IAA was quantified by gas chromatography (GC) as 1-heptafluorobutyryl-IAA-methylester (HFB-IAA-ME) using electron capture detection. Prior to GC analysis, extensive purification of needle extracts was performed employing two… (More)
DOI: 10.1007/BF02340780


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