Inoculation with endomycorrhizae had a significant effect on the cork oak (Quercus suber) seedlings growth. The average length (55.37 cm) and weight (12.6 g) of the aerial part, the length (41 cm) and weight (26.41 g) of the root system, the rod diameter (0.56 cm) and the leaves number (120) of the plants inoculated with mycorrhizae AM were higher than those of control, respectively, 41.75 cm; 10.1 g; 28.5 cm; 16.75 g; 0.53 cm; 112.75. Frequency (90%) and intensity (71%) of mycorrhization were higher at the root levels of plants inoculated with endomycorrhizae than those of control plants that did not show any mycorrhization. However, the study of morphological spores criteria of AM fungi isolated from the rhizosphere of plants inoculated with endomycorrhizae made it possible to identify 18 different species (9 species belong to Glomus genus, 4 belong to Acaulospora genus, 2 belong to Scutellospora genus and one to Gigaspora genus, Diversispora genus and Redeckera genus).
Morocco considers itself among the countries that have made great efforts in the field of watersavings. In agriculture, initiatives to switch from traditional irrigation to localized drip irrigation are widelyencouraged. This method of water supply allows farmers to save water and nutrients while ensuring betteryields in terms of quantity and quality. However, this production performance cannot be obtained without theobligatory passage to the analysis of all the factors of production. In this context, we evaluated during this studythe physicochemical quality of two wells supplying the irrigation network of an apple tree farm in the ruralcommune of Tighassaline, Beni Mellal-Khenifra, Morocco.The results showed that the pH values of the two wells are of the order of 7 and those recorded for the electricalconductivity are between 0.37 ms/cm and 0.55 ms/cm. These results demonstrate the quality of the irrigationwater, almost neutral and without any risk of salinity. These constants are supported by other measurements ofanions and cations contained in the water samples taken. In this regard, the concentration of chloride andsulphate is practically low in the two wells, while the concentration of bicarbonate is twice as high in well 2than in well 1. However, the most abundant cation compared to the others is sodium, with a concentration ofthe order of 1.10 meq/l and 0.9 meq/l for well 1 and well 2 respectively. The following study demonstrates theimportance of these analyzes in the appreciation of one of the main production factors and it proves that thewater from the two wells used to supply the irrigation network of the apple tree farm is very good quality.
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