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    A Multivariate Analysis in Relation to Edaphic and Environmental Factors of Rangelands Vegetation of Mugla Province
    (Galenos Publ House, 2020) Oten, Mehmet; Erdurmus, Cengiz; Kiremitci, Semiha; Soysal, Mustafa; Avci, Mustafa; Yucel, Celal; Inal, Ilker
    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.
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    A Research on The Vegetation Structures of The Rangelands of District Tufanbeyli, Adana
    (Kahramanmaras Sutcu Imam Univ Rektorlugu, 2019) Cinar, Selahattin; Hatipoglu, Rustu; Avci, Mustafa; Yucel, Celal; Inal, Ilker
    This research was conducted to determine vegetation structures of the upland rangelands in the five villages of Tufanbeyli district, Adana, in 2010. Vegetations of the rangelands were studied by the loop method. In the study, plant cover percentages, botanical compositions based on the cover percentage in the plant covered area, range quality values and range conditions of the rangelands studied were determined. Average percentages of grasses, legumes and other family plants in the total plant cover were determined as 36.9 %, 22.0 % and 41.1 %, respectively. It was determined that the averaged percentages of decreasing, increasing and invasive species were 20.9, 11.2 % and 67.2 %, respectively. The calculated quality values of rangelands ranged from 2.40 to 3.92, indicating that the range conditions of all rangelands studied were poor. Results indicated that grazing on the rangelands studied or on those having the same ecological conditions with the studied rangelands must be controlled, and improved by one of the range improvement methods such as over sowing, sowing or natural regeneration, alone or with the combinations of the other rangeland improvement methods. Nevertheless, new research must be conducted to determine the most proper methods of range improvement for the mentioned rangelands.
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    Effect of row spacing and sowing rate on seed yield of alfalfa (Medicago sativa L.) under mediterranean conditions
    (Society of Field Crops Science, 2017) Avci, Mustafa; Hatipoglu, Rustu; Cinar, Selahattin; Yucel, Celal; Inal, Ilker
    The effects of row spacing (25, 50, 75 and 100 cm) and sowing rate (4, 8 and 12 kg ha-1) on alfalfa (Medicago sativa L.) seed yield and its components were investigated under Mediterranean conditions throughout the years of 2008-2011. In the study cultivar Nimet was used and it was evaluated for number of pods per raceme, number of seeds per pod, biomass yield, harvest index, thousand seed weight and seed yield. The results of the study indicated that row spacing and sowing rate significantly affected biomass yield and harvest index but no significant differences were found in pod number and thousand seed weight. Seed yield was significantly affected by sowing rate. The highest and the lowest seed yield were recorded in the first and third years of the experiment, respectively. The highest seed yield averaged over three years was obtained from 25 cm row spacing with 4 kg ha-1 seed rate while the lowest one was obtained from 75 cm row spacing with combining 4 kg ha-1 seed rate. Results of this study suggest that among the various row spacing and seeding rates, narrower row spacings (25 cm or 50 cm) with the lowest seeding rate (4 kg ha-1) were found to be better treatments for alfalfa seed production under Cukurova ecological conditions. © 2017, Society of Field Crops Science. All rights reserved.