Evaluasi Pemanfaatan Limbah Kulit Kopi sebagai Media Tanam dalam Mendukung Pertumbuhan Bibit Kopi Robusta (Coffea canephora)

Abstract

KIKI RIZKY DERIADI. Evaluasi Pemanfaatan Limbah Kulit Kopi sebagai Media Tanam dalam Mendukung Pertumbuhan Bibit Kopi Robusta (Coffea canephora). Dibimbing oleh IIS PURNAMAWATI.

Limbah kulit kopi merupakan hasil samping pengolahan kopi yang berpotensi dimanfaatkan sebagai campuran media tanam untuk mendukung pertumbuhan bibit kopi robusta (C. canephora). Penelitian ini bertujuan mengevaluasi pengaruh berbagai komposisi limbah kulit kopi serta menentukan komposisi yang paling efektif terhadap pertumbuhan bibit kopi robusta. Penelitian ini menggunakan rancangan kelompok lengkap teracak satu faktor dengan lima perlakuan, yaitu 0%, 15%, 20%, 25%, dan 30% limbah kulit kopi, masing masing diulangi tiga kali. Parameter yang diamati meliputi tinggi tanaman, jumlah daun, diameter batang, panjang akar, bobot basah, dan bobot kering. Data dianalisis menggunakan analisis ragam dan dilanjutkan dengan uji duncan multiple range test taraf 5%. Hasil penelitian menunjukkan bahwa limbah kulit kopi berpengaruh nyata terhadap pertumbuhan bibit kopi robusta. Perlakuan 20% limbah kulit kopi memberikan pertumbuhan terbaik pada Sebagian besar parameter sehingga merupakan komposisi yang paling efektif sebagai campuran media tanam bibit kopi robusta.

Kata kunci: bibit kopi robusta, limbah kulit kopi, media tanam, pertumbuhan tanaman

KIKI RIZKY DERIADI. Evaluation of Coffee Husk Waste Utilization as a Growing Medium for Robusta Coffee (Coffea canephora) Seedlings. Supervised by IIS PURNAMAWATI.

Coffee husk waste is a by-product of coffee processing that has the potential to be utilized as a component of growing media to support the growth of robusta coffee (C. canephora) seedlings. This study aimed to evaluate the effect of different proportions of coffee husk waste and to determine the most effective composition for the growth of robusta coffee seedlings. The experiment was arranged using a randomized complete block design with one factor consisting of five treatments: 0%, 15%, 20%, 25%, and 30% coffee husk waste, with each treatment replicated three times. The observed parameters included plant height, number of leaves, stem diameter, root length, fresh weight, and dry weight. The data were analyzed using analysis of variance, followed by Duncan's Multiple Range Test at the 5% significance level. The results showed that the application of coffee husk waste significantly affected the growth of robusta coffee seedlings. The treatment containing 20% coffee husk waste produced the best growth in most of the observed parameters and was therefore identified as the most effective composition for use as a growing medium component for robusta coffee seedlings.

Keywords: coffee husk waste, growing medium, plant growth, robusta coffee seedlings