首页|Root secretion stimulating ash growth in larch-ash mixed forest
Root secretion stimulating ash growth in larch-ash mixed forest
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Allelopathic effect of larch (Larix gmelini ) on the ash growth (Fraximus mandshurica) was studied in artificial cultivation tests. The results revealed that the larch root secretion obviously stimulated the ash growth. In order to determine the main stimulation allelochemicals, the chemical composition was analyzed. By contrasting the contents of carbohydrate and aminoacid in root secretion of larch and ash, it was concluded that the carbohydrate and aminoacid were not important stimulation allelochemicals. The organic acid and other components in root secretion of larch and ash were analyzed by GC and GC-MS analysis. The sand culture tests were carried out with selected model compounds. The results showed that benzeneacetic acid, benzenepropionic acid and phenolic acids in root secretion of larch were the main stimulation allelochemicals.
LarchAshAllelopathyRoot secretionMixed forest
吴俊民、刘广平、王晓水、吴保国
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Heilongjiang Third Planning and Design Institute of Forest Survey, Harbin 150010, P.R. China
Northeast Forest University, Harbin 150040, P. R. China
NETL
NSTL
万方数据
维普
