Performance and Productivity of Potato (Solanum tuberosum L.) Granola Variety from Five Generations in Toba, North Sumatra
Vitho Alveno (a), Nerlileng Purba (b), Bambang S. Purwoko (b), Awang Maharijaya (a)

a) Center for Tropical Horticulture Studies, IPB University
Kampus IPB Baranang Siang
Jl Pajajaran Bogor 16143, Jawa Barat - Indonesia
b) Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University
Jl. Meranti, Kampus IPB Dramaga
Bogor 16680, Jawa Barat - Indonesia

Abstract

Potato is one of the major horticulture crop in Indonesia, but potato productivity in Indonesia is still relatively low compared to several European countries such as Belgium and Netherlands. One of the major problem was the availability of Generation 4 tuber as potato extension seed, which then forced farmer to use lower quality seed. This study aims to determine the effect of using different seed generations on potato performance and production. The study was carried out in Aek Natolu Jaya village, Lumban Julu sub-district, Toba Regency, North Sumatra from November to March 2020, using potato seed from five generation. The results showed that G0, G1, and G2 had the same performance and was the best performance based on the height and diameter of the stem and had the best productivity and started to decrease in the G3 and G4 treatments. The highest number of tubers harvested was found on G0 and G1 treatments. G0, G1, and G2 has higher productivity and also produced better tuber grades than G3 and G4. G2 has high productivity and the only generation produced Grade A tubers, which indicates that G2 is more suitable to be used as extension seed.

Keywords: grade- seed- tropics- tuber- yield

Topic: Food and Nutrition Security