PERTUMBUHAN BIBIT KOPI LIBERIKA TERHADAP INOKULASI MIKORIZA PADA MEDIA TANAM LAHAN MARGINAL DALAM POLYBAG

Authors: Lizawati Lizawati, Elis Kartika, Made Deviani Duaja, dan Gusniwati Gusniwati

Abstract

Liberica Coffee has a potential for cultivation on sub-optimal lands such as peat, ultisol, and post-coal mining soils. However, nutrient deficiencies, extreme pH, and low soil microbial activity often become challenges during the seedling phase which can be a crucial role in determining the success of the plant growth in the field. To adress these obstacles, this research aims to optimize the adaptation of Liberica Coffee seedlings in various sub-optimal growing meida through the application of mycorrhizae. The experiment was conducted using a group of randomized factorial with two treatments factors: (1) mycorrhizal inoculation (without mycorrhizae and with mycorrhizae), and (2) types of sub-optimal growing media at six levels (peat soil, ultisol soil, post-coal mining soil, peat and ultisol mixture at a 1:1 ratio, peat and ultisol mixture at a 2:1 ratio, and peat and ultisol mixture at a 1:2 ratio). The three months old of Liberica Coffee seedlings were used as planting material. The observed variables included plant height increment, number of leaves, stem diameter, and number of branches. The results showed that, at two months after treatment, no significant effect of the treatments was observed on the growth of Liberica Coffee seedlings.