【摘要】 报道了曲阜市麦田杂草的种类和发生规律 .结果表明 ,曲阜市麦田杂草有 16科 4 5种 ,以越冬发生型和早春发生型杂草为主 .主要优势种杂草有麦瓶草Sileneconoidea、播娘蒿Descurainiasophia、荠菜Capsellabursa_pastoris、宝盖草Lamiumamplexicaule、野燕麦Avenafatua、看麦娘Alpecurusaequalis、猪殃殃Galiumaparinevar.tenerum、牛繁缕Malachiumaquaticum、波斯婆婆纳Veronicapersica、麦家公Lithospermumarvense、田旋花Calys tegiaarvensis等 .同时研究了 7种优势杂草对小麦的他感作用 ,结果表明 ,播娘蒿的水提液能明显抑制小麦种子的萌发和幼苗生长 ,宝盖草、麦瓶草和荠菜的水提液也具有较强的抑制作更多还原

【Abstract】 This paper reports the species of weeds and their occurring characteristics in the wheat fields of Qufu City, Shandong Province, China. There are 45 species of weeds in the wheat fields and they belong to 16 families. The dominant species are Silene conoidea, Descurainia sophia, Capsella bursa-pastoris, Lamium amplexicaule, Avena fatua, Alpecurus aequalis, Galium aparine var. tenerum, Malachium aquaticum, Veronica persica, Lithospermum arvense, Calystegia arvensis, etc. The allelopathic effects of the aqueous extracts of seven dominant species on seed germination and seedling growth of wheat were studied.The results indicates that the aqueous extract of Descurainia sophia can strongly restrain the seed germination and seedling growth of wheat. The aqueous extracts of some other species, such as Lamium amplexicaule, Silene conoidea and Capsella bursa-pastoris, also restrain the seed germination and seedling growth of wheat.更多还原