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A study of growth and yield quality of muskmelon varieties, including Galia, Takami, Green Rocky, and Ichiba Kouji, which are suitable for cultivation in the greenhouse in Songkhla province. Four entries of muskmelon were evaluated for yield and fruit quality in a replicated trial during the period January-May, 2018 in greenhouses at the Faculty of Agricultural Technology, Songkhla Rajabhat University, Songkhla Campus, Muang, Songkhla (latitude 7°09'50.8"N, longitude 100°36'51.1"E). The experimental design was a complete randomized with ten replications. The results show that all 4 varieties of muskmelon are significant differences in the growth characteristics of leaf width, leaf length, stem diameter, number of leaves, the first flowering day of male flowers and female flowers. The Green Rocky and Galia varieties have better growth characteristics than Takami and Ichiba Kouji varieties. Moreover, the Green Rocky varieties had growth characteristics and highest of firmness (40.03 N), weight (1.53 kg), TSS (13.22 °brix), and lowest TA (1.56 %). The Green Rocky has a broad elliptical shaped fruit while other varieties have a circular shape. Galia varieties have a green to white color pulp and light orange peel color, and there are differences with other varieties that are light green color pulp and green peel color. The results of sensory evaluation by the 9-point hedonic scale of muskmelon showed a significant difference in appearance liking score of all treatments. Galia had a higher liking score on peel color (light orange) while Green rocky had a higher liking score on aroma, texture, sweetness, and overall taste. Therefore, the Green Rocky cultivars are suitable for cultivation in Songkhla province and around this area.
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