Pengaruh Jarak Tanam dan Kedalaman Tanam terhadap Pertumbuhan dan Hasil Tanaman Kentang (Solanum tuberosum L.) Generasi Dua (G2) Varietas Granola

Abstrak

The experiment was conducted in the Research Station of Indonesian Institute for VegetablesResearch (IIVR) in September to December 2015. The purpose of this experiment was to get plant spacing and planting depth that gives the best growth and yield of potato (Solanum tuberosum L.) secound generation (G2) Granola variety. The method of this research used was experimental method. It arranged in randomized block design (RBD) factorial with three replications. As the first factor was plant spacing with 3 levels J1 = 80 cm x 30 cm, J2 = 80 cm x 35 cm and J3 = 80 cm x 40 cm. As second factor was the planting depth with 3 levels K1 = 10 cm, K2 15 cm and K3 = 20 cm. The result showed that there were not interaction between plant spacing and planting depth on growth and yield of potato (Solanum tuberosum L.) the second generation (G2) Granola variety. The individual effect of plant spacing was significantly on plant height in 42 days after planting (dap). The individual effect of planting depth was not significantly on all variables observed. The individual effect of plant spacing, the treatment J3 (80 cm x 40 cm) gave the highest plant height of 38,79 cm in age 42 day after plant (dap). The treatment J3 (80 cm x 40 cm) gave the highest tuber number of 12,71 knol/plant, tuber weight of 39,32/plant and seed yield 10.388,89 gr/plot (11,54 ton/ha). The individual effect of planting depth, the treatment K1(10 cm) gave the highest tuber number of 12,30 knol/plant, tuber weight of 38,72 /plant and seed yield of 10.333,33 gr/plot (11,48 ton/ha).Key words: Solanum tuberosum; plant spacing; plant depth; growth; granola variety.