Abstract
The experiment was conducted to evaluate the effect of different pruning intervals on nutrient composition and yield of vines from seven sweet potato cultivars. Treatments were arranged in a split-plot design with three replications. The pruning intervals were 80, 90, 120, and 150 days after planting as the main-plots and the trimming volume of sweet potato vine was 25%. Seven sweet potato cultivars (Kuningan Putih, Beta 2, Kuningan Merah, BIS OP-61, 73 OP-5, BIS OP-61-♀-29 and BIS OP-61-OP-22) were in the sub-plots and allocated at random. Results showed that increasing the pruning intervals increased dry matter, organic matter, and crude fiber significantly. However, ash and crude protein were decreased as the trimming intervals increased. Eter Extract was unaffected by trimming intervals.
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