EX VITRO ROOT INDUCTION OF MANGOSTEEN (Garcinia mangostana L.) ON SOME PLANTING MEDIUM

Yosi Zendra Joni dan Noflindawati

Balai Penelitian Tanaman Buah Tropika, Jl. Raya Solok–Aripan, Km. 8, Solok 27301

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ABSTRACT

Mangosteen ex vitro rooting is one of the methods to induce roots on in vitro mangosteen shoots. The planting media type is one factor that influences the succes of ex vitro rooting. This research aimed to determine the optimum planting media to induce mangosteen ex vitro rooting. The experiment was conducted in the greenhouse of the Indonesian Center for Agricultural Biotechnology and Genetic Resources Research and Development (ICABIOGRAD). The planting materials used were >2 cm mangosteen in vitro shoots. The experiment was arranged in Completely Randomized Design (CRD), consisting of 4 treatments, which were the mixtures of soil and manure (SM), soil and compost (SC), compost and rice husk (CR), also soil, compost, and rice husk (SCR) with 10 replicate each. The result showed that the best media for mangosteen ex vitro rooting was the mixture of soil, manure, and rice husk (1:1:1), with life ability (rooting percentage) of 100%. However, the different types of planting media did not affect the shoot elongation, leaves number increment, primary roots length, number of secondary roots, and the ratio of shoots/roots length. The vitro rooting was a better procedure compared to the in vitro.

Key words : compost, Garcinia mangostana L., manure, rooting.

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