A Study on the Allelopathy of Bromus cartharticus Vahl on Trifolium repens L.and Trifolium pratense L.
The allelopathy of Bromus cartharticus Vahl on the seed germination and seedling growth of Trifolium repens and Trifolium pretense was studied by indoor Petri dish and filter paper bioassay. The results showed that the stem-leaf extract of Bromus cartharticus had inhibition on the germination percentage of two clovers. And with the concentration increased, the inhibition increased. 25 g/L concentrations of stem-leaf extract could significantly promote seedling height.All extract treatments inhibited root length. 50 g/L concentrations of root extract had a strong role in promoting the germination, seeding height and root length of Trifolium repens, but inhibited the seeding height and root length of Trifolium pretense. The fresh and dry weights of the two clovers were inhibited. Trifolium repens was more sensitive to the allelopathy of Bromus cartharticus than Trifolium pretense in the same concentration of extract.
国家科技期刊平台
NSTL
万方数据
维普
