Buletin LOUPE (Laporan Umum Penelitian)
Vol 22 No 01 (2026): Juni 2026

Peningkatan Vigor Benih Kakao (Theobroma cacao L.) melalui Aplikasi Bakteri Indigenous dari Bioaktivator Keong Mas Kombinasi Rumen Kambing: Enhancement of Cocoa (Theobroma cacao L.) Seed Vigor through the Application of Indigenous Bacteria Derived from a Golden Apple Snail–Goat Rumen Bioactivator

Rusmini (Politeknik Pertanian Negeri Samarinda)
Zainal Abidin (Politeknik Pertanian Negeri Samarinda)
La Mudi (Politeknik Pertanian Negeri Samarinda)
Daryono (Politeknik Pertanian Negeri Samarinda)
Yuanita (Politeknik Pertanian Negeri Samarinda)
Riama Rita Manullang (Politeknik Pertanian Negeri Samarinda)
Dimas Eko Susilo Putro (Politeknik Pertanian Negeri Samarinda)
Ali Sadikin (Universitas Nahdhlatul Ulama Kalimantan Timur)



Article Info

Publish Date
29 Jun 2026

Abstract

Declining cocoa productivity in East Kalimantan is influenced not only by agronomic practices but also by the quality of planting materials used. Poor-quality seeds with reduced vigor tend to germinate slowly and inconsistently, which ultimately leads to the formation of weak and non-uniform seedlings.  This study aimed to evaluate the potential of several indigenous bacterial isolates derived from golden snail- and goat rumen-based bioactivators in enhancing cocoa seed vigor. The experiment was carried out in a greenhouse at Politani Samarinda using a Completely Randomized Design (CRD) with one factor consisting of five treatments, namely an untreated control (P0) and bacterial isolates P103 (P1), P107 (P2), P204 (P3), and P206 (P4), each with three replications.  Observed variables included germination percentage, germination speed, and germination uniformity. The analysis showed that bacterial treatments did not produce a statistically significant effect on germination percentage. However, they significantly influenced germination uniformity and had a highly significant effect on germination speed. Among all treatments, isolate P103 consistently showed the most favorable performance across all measured parameters, recording a germination percentage of 91.11%, a germination speed of 9.85% day⁻¹, and a germination uniformity of 77.78%.  These results indicate that isolate P103 has strong potential as a bioagent for improving cocoa seed vigor and could be further developed to support the production of high-quality cocoa seedlings.

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Journal Info

Abbrev

jurnalloupe

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Buletin Loop of the Politeknik Pertanian Negeri Samarinda is one of the most active centres of scientific work in agriculture in the Samarinda. Problems are attacked from two distinct points of view: the economic, in which the object is to show how crops may be produced a little more cheaply than at ...