An ecological study on the Peganum harmala L. plant on both sides of the road extending between the areas of Nawaqiya and Soloq, southwest of Benghazi city
Abstract
Peganum harmala is a perennial herbaceous, widely distributed in Libya, the aim of this study was to identify the community and population structures of the p. harmala southwest of Benghazi City and evaluate of ecological factors controlling the differences in plant composition of P. harmala. The classification of vegetation using the two-way indicator species analysis (TWINSPAN) resulted in the four vegetation groups(A-B) named with dominate species: group (A) Zygophyllum album - Peganum harmal., group (B) Eruca sativa, group (C) Brassica tournefortii - Inula crithmoides and group (D) Alhagi graecorum and Emex spinosus. Results of ordination indicate that performance is P. harmala L. is correlated along gradient of high E.C .and magnesium. Salinity and magnesium were the most important factors that correlated strongly with the distribution of Peganum harmal, in the study area, while the other factors as soil textures, PH, CaCO3, O.M, Cl, Na+, K+, Ca+2, N and P were have weak correlation.