Morphological and physicochemical characteristics of Bima Pasru, a local sweetpotato variety originated from Lumajang, East Java, Indonesia

Abstract The demand of sweetpotato for fresh consumption, processed foods, and export continues to rise. Thus, the tuber characteristics should be tailored with market demand. The honey sweetpotato variety, Bima Pasru demonstrates strong adaptation in Lumajang, one of the sweetpotato central area in East Java. This variety has desired characteristics for domestic and foreign markets. The variety exhibit morphological traits such as: a semi-compact plant type, stem internode diameter 3.7 mm, stem internode length 2 cm, dominant color of tendril is greenish red, secondary color of tendril is green on shoots, shape of lobe leaf skeletal with depth of leaf lobe very deep with number of lobes are 5, forms of central lobe lanceolatus by which medium adult leaf size with green adult leaf color and reddish-green young leaves. The tuber shape oblong-beaked, the skin color of the tubers is creamy, the dominant color of the tuber flesh is pale yellow and the secondary color is orange. Bima Pasru has a sweet taste with a moisture content of around 67.75%, dry matter content 31.29%, fiber 2.38% (dw), starch ±55.68% (dw), and reducing sugar 7.51% (dw). The yield potential is high, approximately 34.60t/ha with an average yield 27.0 t/ha, the tubers reached harvest maturity 4.5 months after planting, this variety is suitable for cultivation in alluvial soils as in Lumajang Regency. With regards to its uniform tuber size and sweet taste, Bima Pasru is tailored for baked products applications.