Pengaruh Media Tanam Tandan Kosong dan Durasi Perendaman Air Kelapa pada Pertumbuhan Bibit Mucuna bracteata

Abstract

CHRIS PERDAMEAN SILALAHI. Pengaruh Media Tanam Tandan Kosong dan Durasi Perendaman Air Kelapa pada Pertumbuhan Bibit Mucuna bracteata. Dibimbing oleh MERRY GLORIA MELIALA. Penelitian bertujuan mengetahui pengaruh media tanam tandan kosong kelapa sawit dan durasi perendaman air kelapa terhadap pertumbuhan bibit M. bracteata. Penelitian dilaksanakan pada Oktober-November 2025 di PT Bumi Permai Lestari, Bukit Intan Estate, Bangka Barat menggunakan Rancangan Kelompok Lengkap Teracak (RKLT) faktorial dua faktor. Faktor pertama yaitu media tanam terdiri atas M1 (100% tanah), M2 (3:1), M3 (1:1), M4 (1:3), dan M5 (100% tandan kosong). Faktor kedua yaitu durasi perendaman terdiri atas R1 (air bersih 10 menit), R2 (2 jam), R3 (4 jam), R4 (6 jam), dan R5 (8 jam). Hasil penelitian menunjukkan bahwa media tanam tandan kosong tidak berpengaruh nyata terhadap pertumbuhan tanaman. Durasi perendaman air kelapa berpengaruh sangat nyata terhadap tinggi tanaman pada fase awal pertumbuhan dengan perlakuan terbaik R2 (2 jam). Interaksi media tanam dan durasi perendaman berpengaruh nyata terhadap tinggi tanaman dengan perlakuan terbaik M1R3 yang menghasilkan tinggi tanaman tertinggi sebesar 26,33 cm pada 6 MST. Kata kunci: air bersih, daya tumbuh, tinggi tanaman

CHRIS PERDAMEAN SILALAHI. Effects of Empty Fruit Bunch Growing Media and Coconut Water Soaking Duration on the Growth of Mucuna bracteata Seedlings. Supervised by MERRY GLORIA MELIALA. The objective of study were to determine the effect of empty fruit bunch planting media and coconut water soaking duration on the growth of M. bracteata seedlings. The research was conducted from October to November 2025 at PT Bumi Permai Lestari, Bukit Intan Estate, West Bangka using a factorial Randomized Complete Block Design (RCBD). The first factor was planting media consisting of M1 (100% soil), M2 (3:1), M3 (1:1), M4 (1:3), and M5 (100% empty fruit bunches). The second factor was soaking duration consisting of R1 (clean water for 10 minutes), R2 (2 hours), R3 (4 hours), R4 (6 hours), and R5 (8 hours). The results showed that empty fruit bunch planting media had no significant effect on plant growth. Coconut water soaking duration had a highly significant effect on plant height during early growth, with the best treatment obtained at R2 (2 hours). The interaction between planting media and soaking duration significantly affected plant height, with the best treatment combination obtained at M1R3, producing the highest plant height of 26.33 cm at 6 weeks after planting. Keywords: clean water, germination percentage, plant hight