Pengaruh Campuran Media Tanam dan Lama Penyimpanan Benih terhadap Pertumbuhan Bibit Mucuna bracteata

Abstract

CANTIKA SAYYIDINA MUPIED BR. PURBA. Pengaruh Campuran Media Tanam dan Lama Penyimpanan Benih terhadap Pertumbuhan Bibit Mucuna bracteata. Dibimbing oleh MERRY GLORIA MELIALA. Penelitian bertujuan menganalisis pengaruh campuran media tanam, lama penyimpanan benih, serta interaksi keduanya terhadap pertumbuhan bibit Mucuna bracteata. Penelitian dilaksanakan pada Maret–Mei 2026 di Desa Muara Basung, Kecamatan Pinggir, Kabupaten Bengkalis, Riau menggunakan rancangan kelompok lengkap teracak (RKLT) faktorial dua faktor, yaitu media tanam (M0 M6) dan lama penyimpanan benih (3 bulan dan 12 bulan). Hasil penelitian menunjukkan bahwa media tanam berpengaruh nyata terhadap daya tumbuh, rata rata waktu tumbuh, jumlah daun, dan luas daun, dengan perlakuan terbaik M1 (topsoil:pupuk kandang sapi = 1:1). Lama penyimpanan benih hanya berpengaruh nyata terhadap bobot kering akar. Interaksi kedua faktor berpengaruh nyata terhadap daya tumbuh, rata-rata waktu tumbuh, dan luas daun, dengan kombinasi terbaik M1T1. Benih yang disimpan selama satu tahun masih menghasilkan pertumbuhan bibit yang relatif setara dengan benih berumur tiga bulan.

CANTIKA SAYYIDINA MUPIED BR. PURBA. Effect of Growing Media Composition and Seed Storage Duration on the Growth of Mucuna bracteata Seedlings. Supervised by MERRY GLORIA MELIALA. The objective of this study was to analyze the effects of growing media composition, seed storage duration, and their interaction on the growth of Mucuna bracteata seedlings. The study was conducted from March to May 2026 in Muara Basung Village, Pinggir District, Bengkalis Regency, Riau, using a factorial randomized complete block design (RCBD) with two factors: growing media (M0–M6) and seed storage duration (3 months and 12 months). The results showed that growing media significantly affected germination percentage, mean germination time, number of leaves, and leaf area, with the M1 treatment (topsoil:cow manure = 1:1) producing the best results. Seed storage duration significantly affected only root dry weight. The interaction between the two factors significantly affected germination percentage, mean germination time, and leaf area, with M1T1 identified as the best treatment combination. Seeds stored for 12 months still produced seedling growth that was relatively comparable to those stored for 3 months.