Growth and yield of eight sweet potato accessions in red yellow podsolic soil

Sweet potatoes are included in the group of tubers that have considerable potential as a source of substitution food. This is because sweet potatoes contain a number of minerals and nutrients that are no less important than rice and corn and which are quite potential as food diversification and agro-industry materials. Sweet potatoes include plants that have high diversity, judging from the leaves and tubers. Each genetic variety has its own specific character of each variety. The development of tubers will be hampered when planted on heavy clay soils and poor soil physical properties, so that it can reduce yields and the shape of the tubers is often lumpy - lumps and high fiber content.The purpose of this study is to obtain sweet potato accession that provides the best growth potential and yield on red yellow podzolic soils.The research has been carried out in the Experimental Garden of the Faculty of Agriculture, Tanjungpura University Pontianak which lasted for 3 months. This study used a Complete Randomized Design (RAL) consisting of 8 treatments with 3 repeats and 3 samples in each treatment so that 72 experimental units were obtained. There were eight sweet potato accessions, namely A1= (ARF 01 accession), A2= (ARF 02 accession), A3= (ARF 03 accession), A4= (ARF 05 accession), A5= (ARF 06 accession), A6= (ARF 08 accession), A7= (ARF 09 accession), and A8= (ARF 10 accession). The variables observed in this study were the length of the main vine, the number of branches, the fresh weight of the top of the plant, the dry weight of the plant, the number of tubers per plant, the diameter of the tubers, the length of the bulbs, the weight of the tubers per plant and the sugar content. The variables observed in this study were the length of the main vine, the number of branches, the fresh weight of the top of the plant, the dry weight of the plant, the number of tubers per plant, the diameter of the tubers, the length of the bulbs, the weight of the tubers per plant and the sugar content. The results showed that ARF-08 accession had the longest tendril length (132.44 cm), ARF-10 accession has the heaviest plant top weight (458.89 g) and heaviest plant dry weight (65.27 g), ARF-08 accession has the largest tuber diameter (43.09 mm) and heaviest tuber weight per plant (598.01 g).