CAJ | 학술논문

采用生物测定法研究了地肤及其不同部位水浸提液对胡麻的化感效应.结果表明,1)不同浓度的地肤全株及地上部茎叶水浸提液对胡麻种子萌发和幼苗生长有不同程度的抑制作用,抑制率均随浸提液浓度的升高而增大,0.100 g/mL处理对胡麻种子的发芽势、发芽率、发芽指数、活力指数及幼苗的根长、苗高、根鲜重和苗鲜重的抑制率均达100%.2)地肤水浸提液抑制胡麻种子萌发主要是抑制了活力指数,抑制胡麻幼苗生长主要是抑制了根的生长.3)地肤释放化感物质可能有多种途径(如地上部淋溶、根系分泌等),但从综合效应看,同一浓度处理均以地上部化感作用最强,根系化感作用最弱.
채용생물측정법연구료지부급기불동부위수침제액대호마적화감효응.결과표명,1)불동농도적지부전주급지상부경협수침제액대호마충자맹발화유묘생장유불동정도적억제작용,억제솔균수침제액농도적승고이증대,0.100 g/mL처리대호마충자적발아세、발아솔、발아지수、활력지수급유묘적근장、묘고、근선중화묘선중적억제솔균체100%.2)지부수침제액억제호마충자맹발주요시억제료활력지수,억제호마유묘생장주요시억제료근적생장.3)지부석방화감물질가능유다충도경(여지상부림용、근계분비등),단종종합효응간,동일농도처리균이지상부화감작용최강,근계화감작용최약.
Allelopathy of aqueous extracts of Kochia scoparia and its different parts on flax (Linum usitatissimum) were tested by the methods of bioassay. The results showed: 1) Different concentration of K. scoparia and its stem and leaf aqueous extracts have different degree's inhibition on flaxseed germination and seedling growth, and the inhibition rate increased with the increasing concentration of extract, 0.100 g/mL whole plant and its stem and leaf aqueous extracts of K. scoparia have 100% inhibition rate to the germination energy, germination rate, germination index, vigor index and root length, shoot height, root fresh weight and shoot fresh weight.2) The aqueous extracts of K. scoparia inhibit flaxseed germination was mainly because they inhibit vigor index, and they inhibit the growth of flax seedlings was mainly because they inhibit root growth. 3) K. scoparia aqueous extracts showed allelopathy effect to the germination and seedling growth of flaxseed, which indicated that K. scoparia release allelochemicals in various ways (such as rainoff eluviation, root excretion, etc.). But according to the inhibition synthesis effect, at the same concentration of aqueous extracts, the stem and leaf has the strongest allelopathy on flaxseed, and the root has the least allelopathy.