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The study was conducted to determine whether there is a difference in leaf breaking resistance between genotypes in order to minimize leaf breaks which cause large loss in alfalfa forage production. The experiment was carried out in the Batı Akdeniz Agricultural Research Institute, at the Department of Field Crops in 2016. It was established by randomized complete block design. Breaking resistance of the leaves was measured using a universal testing machine on the main stem belonging to alfalfa genotypes which were collected from 40 different locations at the fourth-end leaves. In addition, thickness of leaf stalk, rupture energy of green and dry samples and rupture stress of green and dry samples were calculated. As a result of the experiment; in dry sample, Demre-1, Döşemealtı-2 and Konyaaltı-2, genotypes were determined to have the highest breaking resistance and Alanya-1, Alanya-2, Finike-1, Finike-2, Manavgat-1 Manavgat-2 and Gazipaşa-2 genotypes were determined to have the lowest breaking resistance. In the dry sample, while the highest breaking resistance value was measured at 1.0419 N, the lowest breaking resistance value was measured at 1.0022 N. A wide variation among genotypes was determined in terms of the characteristics examined and it can be said that the rupture resistance can be used as a selection criterion.

This study was carried out in order to compare in 20 different rangeland sample areas that determined in order to environmental variables, vegetation and soil properties by multivariate ordination analysis in Mugla province. Cluster analysis was made to determine the similarity and species compositions of sample areas, and as a result of this analysis, three different groups have occurred. Additionally, detrended correspondence analysis (DCA) was made after the indicator species analysis. The interaction between environmental and soil-borne factors as altitude, distance to village, soil depth, pH in saturated soil with water, lime and surface stoniness were found to be significant and this significance was expressed by graphs. Moreover, it was indicated that relationship with species in the vegetation of the variables that were determined as significant by tables and figures. The relationship with the species in the vegetation of the variables that were determined as significant was also indicated. The result of the study showed that environmental variables as soil depth, soil pH saturated with water, stony surface, altitude and distance to villages had a significant effect on the species diversity and distribution in the samples areas.