The allelopathic effects of Bidens pilosa aqueous extracts in different months within ayear on seed germination and seedling growth of radish,rice and cucumber weretested.

Comparied with the checks of aqueous extractsfrom other 7 piants.

Eucalyptus urophylla was used to examine its allelopathic effects on four Leaume species: Acacia confusa,Acacia auriculaeformis,Acacia mangium and Albizia falcataria by way of laboratory bioassay with fresh leaf volatiles,as well as various concentration of leaf water extracts.

Chemical features of extracts from source rocks in coal measures with different polarity solvents;

There is a great difference in the gross composition and biomarker distribution between chloroform extracts of coal and oil from coal measures, which results in a difficulty in oil-source correlation in a coal-bearing petrolific basin.

The progress of the solvent extraction of coal and the characterization methods of extracts were reviewed.

Study on the preparation of yeast extract and its application to soy fermented mash;

Study on the Anti-virus Activity of the Extracts from Plant or Edible Fungus;

This article studied the addition of spice and sauce tune in the yeast autolysis to prepare extract,and the influences of the temperature、pH、the quantity of sauce tune on autolysis of yeast cell was also discussed.

Health care effect of extraction in perilla seed coat;

By means of experiments have been proved extraction of perilla stem and leaves had the capability of antigerm.