STORAGE CHARACTERISTICS OF GRANOLA POTATO BULBS FOR SEEDLINGS AFTER STORAGE

Abstract— Farmers often use low-quality potato tubers and uncertified potato seeds, so 30-50% cannot be planted. To increase potato production to reach 30 tons Ha-1, there needs to be quality potato seeds. The purpose of this research is to develop an appropriate method of storing potato seeds so that the seeds have high quality. Mica plastic capacity of 12 kg, 25 kg and 50 kg is used as a storage chamber, storage treatment is an open chamber, the lid is given a hole of 10%, the lid is given a hole of 20% and the chamber is closed. Containers containing potato seeds are stored in a room with a temperature of 21-29 oC, RH 75-80%, light intensity 0-200 lux. The quality parameters of potatoes are weight losses and specific gravity of potato tubers, seed damage, number of apical shoots, and viability of seed potatoes after planting. It also observed water content, carbohydrate content, sugar content and tuber protein content before and after storage. The treatment of potato seed storage in a 25 kg plastic mica chamber with 10% aeration hole is the best treatment. The number of potato seeds lost due to evaporation was 5.12 ± 0.04%, and seed damage was 1.86 ± 0.05%. The number of potato seeds that grew apical shoots after three months storage was 96.33 ± 1.1% and the viability of seeds when seed potatoes were planted in open fields was more than 96.18 ± 0.46%.