PENGARUH ASAL BAHAN STEK DAN KONSENTRASI INDOLE BUTYRIC ACID TERHADAP PERTUMBUHAN STEK APEL INDIA (Ziziphus mauritiana Lam.)

Abstract

Indian apples (Ziziphus mauritiana Lam.) is a fruiting plant originating from India. The spread of this plant can grow in subtropical and tropical regions. Generative propagation is difficult to carry out because Indian apple seeds are classified as hard-skinned seeds (physical dormancy). Vegetative propagation is an alternative to the multiplication of Indian apple seeds, through cuttings. Giving Indole Butyric Acid (IBA) as a type of synthetic auxin, has been proven to increase rooting in many plants. This study aimed to determine the effect of (IBA) as growth regulators with various concentrations on shoot, middle, and base cuttings using Completely Randomized Design with 8 treatments. The results obtained from this study stated that there was the effect of morphological changes in cuttings on the shoot middle, and base cuttings. The number and length of root were not produced in all treatments. Formation of nodules was only found in the stem cuttings with 21 (days after planting) nodules appearing at a concentration of 25 mg/L.