Studies on substance of germination inhibitor in seed of Codonopsis lameolata Benth.et Hook;

Study on Activity of Germination Inhibitors in Endosperm of Taxus chinensis var.mairei Seed;

Study on Germination Inhibitors in Different Parts of American Ginseng Fruit;

The Nanjing Linden seeds(fruits) were taken as the materials to extract germination inhibitor respectively from fruit shell,seed coat,and endosperm with methanol solution,and conduct the germination test of Chinese cabbage seeds using those extracts.

It has been found for the first time that there is quite a number inhibitory substances in the testa and kernel of dormant Fructus Schisandrae.

In order to gain a deeper understanding on dormancy mechanism of hawthorn seed,endocarp,seed capsule and embryo were soaked in 80% methanol solution to extract inhibitory substances,taking wild hawthorn seeds as materials,and effects of extracts on germination rate of cabbage seed were researched.

There are some inhibitors in the sarcocarp,seed coat and endosperm,and the inhibitory effect of the extracts from endosperm was stronger than others,sarcocarp was the second and the seed coat the last.

It was therefore proposed that there were probably a lot of inhibitors in pulp,as well as in endocarp and endosperm.

The inhibitors were preliminarily isolated by using a series of solvents, then separated and purified by ac, and then further isolated and identified with GerMS.

By means of monomer test,repetition test and relative action test,the effect of the suppressive substances in the anaerobic digestion process of penicillin wastewater and its concentration on the treatment efficiency has been investigated.