Oligo- Element concentration of the Avocado ' Fuerte ' in Morocco - results leaf analysis

The fertilization operation of avocado trees must take into account the chemical composition of environmental soil and chemical elements of plant leaves. However, in Morocco, farmers don’t know well cultural techniques of avocado cultivation. Indeed most of them rely on the qualitative and quantitative fertilization applied to other types of trees. In this study, we assess the nutritional status of the Avocado variety called "fuerte" with some chemical elements. For this purpose we use leaf technical analysis to measure concentrations of these elements in avocado so that we can determine the quantity of every element needed by the tree. The results show that the different orchards studied did not suffer from the same deficits or excesses of the chemical elements studied. So, the application of this technique is so interesting for the culture of avocado and the respect for the environment. Keywords: Avocado, fertilization, leaf analysis, ‘Fuerte’ variety, Morocc

A contribution to the therapeutic valorization of Moroccan Cistus Ladanifer L

Cistus ladanifer L. is a medicinal shrub traditionally used against several diseases. The present study was performed for trying to enrich the potentialities of this plant by evaluating the possible analgaesic effect of aqueous extract of Cistus. ladanifer (AECL) and oral formulation prepared from AECL. The analgaesic effect was tested using the acetic acid induces writhing and formalin models. The results showed that both aqueous extract and herbal syrup induced a significant analgaesic activity in the two nociceptive tests. Moreover, the oral formulation produced the potent analgaesic effect. We conclude from the results of this work that the Moroccan C. ladanifer L orally administrated to mice possesses an efficient analgaesic effect, and may will contribute to developing a natural analgaesic drug