| Summary: | In order to evaluate the effect of green pruning times on some physiologic and morphologic characteristics of peach Redtop cultivar in Moghan region, a factorial experiment was arranged based on randomized complete block design with three replications. First factor (the pruning severity) included 3 treatments (⅓ pruning, ½ pruning, complete pruning and Non pruning as control) and second factor (pruning time) included 4 treatments (31 May, 15 June and 1 June). Morphologic characteristics such as length of seasonal branches, fruit size, physiologic characteristics; total soluble solids (TSS), acidity, rate of sugar and yield were measured, and evaluated. Results showed that effect of green pruning times had significant effect on length of seasonal branches, yield, fruit size, total soluble solids, acidity and rate of sugar. The superior treatment was (½ pruning at 15 June) that had the highest rate of sugar, biggest fruit, highest yield, high total soluble solids and lower amount of total acidity. Finally, it was concluded that among the seven studied characteristics, the treatment (June 25, ½ pruning severity) had the most significant effects in comparison with other treatments.
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