【摘要】 对杉木、丝栗栲以及木荷叶片的化感物质进行初步分离,并用杉木种子进行生物测定结果表明,丝栗栲和木荷叶片经丙酮和乙酸乙酯萃取浓缩后,经乙醇提取的极性化感物质活性大于石油醚提取的弱极性化感物质活性,杉木叶片分别经丙酮和乙酸乙酯萃取浓缩后,经石油醚提取的弱极性化感物质活性大于乙醇提取的极性化感物质活性,这在一定程度上可以推断丝栗栲和木荷叶片化感物质对杉木种子发芽促进作用较强的是极性化感物质,杉木叶片化感物质对杉木种子抑制作用较强的是弱极性化感物质。更多还原

【Abstract】 Primary isolation of allelochemicals from Chinese fir, Castanopsis fargesii and Sckima superba and the bioas-sary of Chinese-fir seeds were carried out in this paper. The result showed that after Chinese fir, Castanopsis fargesii and Schima superba ’s leaves dissolved by propanone and ethyl acetate, the allelochemicals of Castanopsis fargesii and Schima superba distilled by ethand shsolute represented more active than those of distilled by petroleum, the allelochemicals of Chinese fir distilled by petroleum represented more active than those of distilled by ethand shsolute. It could confirm that allelochemicals of Castanopsis fargesii and Schima superba were polar allelochemicals, allelochemicals of Chinese fir were little-polar allelochemicals.更多还原