Studies On The Allelopathy Activity And TLC For Chemical Constituents Of Dicranopteris Pedata (Houtt.) Nakaike

Dicranopteris Pedata is a kind of herb that belongs to Sapium Genus, Euphorbiaceae Family. Growth in Hubei, zhejiang, Sichuan, Guizhou, Hunan, Jiangxi, and Henan provinces and so on. Dicranopteis pedata is a traditional Chinese medicine, with a variety of pharmacological activities. Studies have shown that Dicranopteis pedata also has the absorption of allelopathy, the extract from it has the potential prospects become biological pesticide. In our country, there is an abundant resources of it and distributed throughout our country. This study adopts the method that use liquid extract from dicranopteis pedat water to cultivates legumes(beans, green beans), gramineae(rice,corn) and gourd family plants(pumpkin), and through these crops'physiological activities and total sugar content experiments to detect dicranopteis pedat's absorption of allelopathy, found that at low concentrations, liquid extract from dicranopteis pedat may have a litter stimulative effect to the germination of plant seeds, but when above a certain concentration, there is play inhibiting effect in the seed germination of the three plants, and the inhibiting effect very obvious.Ethanol extracts absorption of the TLC detection. Take A few absorption total extract,and petroleum ether extract,ethyl acetate extract,water saturation n-butanol extract,water phase substances flow, get the relevant material Oriental methanol solution is used to the TLC detection. Ethanol extract and extract absorption of the TLC result for the comprehensive understanding of the chemical composition ethanol extracts absorption, the polarity of different mixed solvent elution agents, adopting different as the colour developing method, found after extraction colour-display absorption in accordance with ethanol extracts after basic different polarity extracted solvent to separate. Absorption of by ethanol extracts extract chromatography, the absorption that ethanol extracts chemical composition of high water most soluble in polarity saturated n-butanol and water, in polarity in low petroleum ether, and quantity also compare the polarity medium ethyl chemical content in low. In the absorption of allelopathy and its relevant chemical composition of.This study of three absorption (fabaceae ethanol extracts, grass and the gourd family) plant of allelopathy activity, determine the effectiveness of absorption of allelopathy for the use of plants, of allelopathy material act as biological pesticide provides choice basis. To study of the chemical ingredients of absorption, to elucidate the role of allelopathy provides material base of the preliminary basis.