Allelopathic effects of Chamaecrista spp.on Paspalum notatum under various environmental stresses

Allelopathy of Chamaecrista spp on Paspalum notatum was studied.The result indicated that temperature affected the allelopathy.Germination of P.notatum was retarded at 27℃ or 23℃,while promoted at 25℃.At 3 different concentrations of PEG,Chamaecrista spp inhibited the growth of P.notatum.When the PEG concentration was 20%,the inhibition effect was most significant.In general,high pH retarded and low pH promoted the P.notatum growth.