期刊
JOURNAL OF CHEMICAL ECOLOGY
卷 26, 期 9, 页码 2211-2219出版社
SPRINGER
DOI: 10.1023/A:1005580718765
关键词
allelopathy; Chinese fir; decomposition; phenolics; stump-roots; phytotoxicity
The change of total phenolic content in decomposing Chinese fir stump-roots of different ages in replant woodland and its effects was investigated. The total phenolic contents in stump-roots decreased with increasing stump-root age. The order of total phenolic content in different parts of stump-roots was, root > stump heartwood > stump sapwood. Phenolics released from Chinese fir stump-roots reduced the growth of fir seedlings. The growth of Chinese fir seedlings was negatively correlated with total phenolic content in stump-roots that had been added to the soil. Extracts of Chinese fir stump-roots inhibited fir seed germination. The results, based on paper chromatography and HPLC, revealed that eight phenolic compounds were present in the Chinese fir stump-roots.
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