Identification of Fifty Sweetpotato (Ipomoea batatas (L.) Lam.) Promising Clones for Bioethanol Raw Materials

The purpose of this research was to identify the characteristics of fifty sweetpotato promising clones for bioethanol raw materials. The study was conducted at the University of Padjadjaran, Jatinangor, experimental field station, at year 2012. The analysis for sweetpotato consist of moisture content, dry matter content and starch content was carried out in the Laboratory of Crop Physiology Indonesian Vegetable Research Institute, Lembang. The result of the analysis elucidated that sweetpotato promising clones have range moisture content between (585.5 to 819.6) g · kg–1, dry matter content (180.4 to 414.5) g · kg–1, and starch content (47.9 to 275.3) g · kg–1 based on fresh storage root weight. Fifty sweetpotato promising clones has yield potential range between (4.0 to 49) t · ha–1 and estimated ethanol can be produced ranges between (615.18 to 5364.50) L · ha–1. Eleven promising clones resulted high yields range between (23.6 to 49) t · ha–1 and ethanol production between (3 320.1 to 5 364.5) L · ha–1.