Abstract:

Abstract: Seeds germination and seedlings growth of Brassica campestris in different concentrations of the methanol extracts from the seed coat and endosperm (including embryos) of Taxus chinensis var.mairei were studied in this paper. The results showed that there existed inhibition of seed coat and endosperm extract of different concentrations on the seed germination and seedlings growth in a certain extent. With the extract concentration increased, B.campestris seed germination rate, seedlings root length and stem length were gradually decreased. Germination rate of B.campestris in seed endosperm extracts was lower than that in the seed coat extracts in the same concentrations, and seedling root length in the seed coat extracts was shorter than that in the endosperm extracts. Analysis of variance results showed that significant differences was existed among different treatment groups for root length of seedlings. The research results indicated that inhibiting substances were existed both in the seed coats and endosperm for Taxus chinensis var. mairei seeds, and endosperm extracts strongly inhibited seed germination of B. campestris, while the seed coat extracts strongly inhibited root length of B. campestris.