PENGARUH KEDALAMAN DAN POSISI TANAM STEK TERHADAP PERTUMBUHAN DAN HASIL UBI JALAR (IPOMOEA BATATAS L.).

PENGARUH KEDALAMAN DAN POSISI TANAM STEK  TERHADAP PERTUMBUHAN DAN HASIL UBI JALAR (IPOMOEA BATATAS L.)

Oleh: Aji Febriyanto, Supriyono, Sri Nyoto

Universitas Sebelas Maret

Contact Author: ajifebrianto2@gmail.com

ABSTRACT

This study aims to determine the effect of depth and position of cuttings cultivation on the growth and yield of sweet potatoes (Ipomoea batatas L.), in order to obtain the depth and position of cuttings cultivation can increase the tuber yield. The study design used Randomized Complete Block Design (RCBD) with one treatment factor is the depth and position of cuttings cultivation of sweet potato (Ipomoea batatas L.). This factors consists of six treatment, the R1 (depth and position of cuttings cultivation of 1 vertebra upright), R2 (depth and position of cuttings cultivation of 1 vertebra oblique), R3 (depth and position of cuttings cultivation of 2 segment upright ), R4 (depth and position of cuttings cultivation of 2 segment oblique), R5 (depth and position of cuttings cultivation of 3 sections upright), R6 (depth and position of cuttings cultivation of 3 sections oblique). Each treatment was repeated 4 times repetition, so there are 24 plots treatment. Variable observation observed growth variables (diameters, fresh weight and dry weight of straws) and the outcome variable (number of tuber of a plot, tuber length, diameter of the bulb, tuber weight of a plant, tuber weight of a plot). The results showed that the treatment depth and position of cuttings cultivation of sweet potato  significant effect on tuber diameter, tuber number of aplot, weight of tuber of a plant, tuber weight of a plot, fresh weight and dry weight of straws.

Keywords: sweet potato, depth, position of cuttings cultivation, growth