IDENTIFIKASI KARAKTER DAUN DAN UMBI SERTA KADAR GULA TIGA AKSESI TANAMAN UBI JALAR (Ipomoea batatas L.)

Abstrak

Sweet potato is a source of carbohydrates, widely cultivated by the people of Papua . Sweet potato have a variety of different types and characters. This diversity has an important in the process of selecting and assembling new superior varieties. Identification bas ed on morphological characters in leaves and tubers can be used to see similarities and differences in plants, both quantitatively and qualitatively. The sugar content in sweet potato tubers needs to be known, because it is related to use as food for peopl e with degenerative diseases. The aim of the study was to identify the morphological characters of leaves and tubers, as well as sugar content in three sweet potato accessions cultivated by the local community. Identification of morphological characters o f leaves and tubers used descriptive methods, while identification of sugar content used experimental methods. The results showed that (1) the morphological characters of the leaves and tubers of the three types of sweet potato cultivated by the local comm unity were different, both quantitatively and qualitatively. (2) The highest sugar content is found in boiled and baked light yellow sweet potatoes. The lowest sugar content was found in boiled white sweet potatoes (3.57 0brix) and creamy sweet potatoes that were baked (3.13 0brix). White and creamy sweet potatoes are more suitable for people with degenerative diseases.