PREVENTION OF SEED PIECE DECAY OF PORATO USING LEAVES AND TREE ASHES

Yong Lim and Dr. Man Kyu Huh*

ABSTRACT

ABSTRACT ABSTRACT ABSTRACT ABSTRACT Potato (Solanum tuberosum L.) is one of the world's favorite root vegetable. Virus and bacteria contamination in a potato breeding program can seriously disrupt the variety development process. Much potato propagation involves taking cuttings from a germ potato. Cut the germ potatoes into 4 equal pieces with a sterilized knife. The cut potatoes were covered with ash (0%, 25%, 50%, 75%, and 100%). The potatoes were planted in agriculture fields in April and harvested in July. When cut potatoes were completely covered with ash, 3.5% showed Potato leaf roll virus (PLRV) infection. When cut potatoes were completely covered with ash (100%), 1.2% showed Potato virus Y (PVY) infection. 1.6% showed bacterial soft rot infection, and 1.4% showed bacterial wilt infection. Ash contains about 1.5 percent phosphorus and 7 percent potassium, two essential nutrients for plant growth. Using ash in this study may reduce the infection of some bacteria.

Keywords: Potato, Potato leaf roll virus (PLRV), Potato virus Y (PVY), virus contamination.