Effect of Various Doses of Growth Regulators and Soaking Time on the Growth and Yield of Sweet Potato Cuttings (Ipomoea batatas L.)

Abstract

This research was carried out in the Batulappa environment, Samataring Village, East Sinjai District, Sinjai Regency which took place from May to August 2025. This study aims to determine the effect of growth regulator dose, soaking duration, and interaction between growth regulator dose and soaking duration on sweet potato growth growth and yield cuttings. This study uses Separate Plot Design (RPT) in a two-factor factorial design. The first factor is Growtone Growth Regulator (Z) and the second factor is Soaking Length (L). There are 9 combinations of treatments repeated 3 times so that there are 27 combinations of treatments. Each treatment there are 6 plants for a total of 162 plants. For each treatment, 3 plant samples were taken, so that the number of plant samples observed was 81 plants. The results showed that the treatment of Growtone 30 ml/l of water (Z2) obtained a result of 44.9 had a real effect on the length of the plant (cm). The treatment time of soaking was 120 minutes (L3) and the result was 454.33 grams which had a real effect on the weight of the tubers (gr). The interaction of Growtone treatment of 40 ml/l water (Z3) and soaking time of 80 minutes (L2) obtained the results of 34 leaves had a real effect on the number of leaves (strands). The interaction of Growtone 20 ml/l water (Z1) and the soaking time of 120 minutes (L3) obtained the result of 59.67 tubers had a very noticeable effect on the number of tubers (fruits).