Aplikasi Dosis Rhizobium dan Konsentrasi Sitokinin terhadap Pertumbuhan, Hasil, dan Kualitas Kedelai Edamame (Glycine max (L.) Merrill)
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Abstract
Edamame (Glycine max L. Merrill) memiliki potensi tinggi di Indonesia dengan produktivitas 3,5–8 ton/ha dan permintaan ekspor yang signifikan, terutama ke Jepang dan Amerika Serikat. Kabupaten Jember, khususnya PT Mitratani Dua Tujuh, merupakan sentra utama produksi dan ekspor. Namun, budidaya edamame masih menghadapi kendala seperti rendahnya pengetahuan petani dan kandungan nitrogen tanah yang minim. rhizobium spp. berperan dalam fiksasi nitrogen, sementara hormon sitokinin (BAP) telah terbukti meningkatkan pertumbuhan dan hasil tanaman. Kombinasi keduanya diharapkan mampu meningkatkan produktivitas edamame melalui peningkatan penyerapan nitrogen dan kualitas polong. Penelitian ini bertujuan mengkaji pengaruh dosis rhizobium dan konsentrasi sitokinin terhadap pertumbuhan, hasil, dan mutu edamame. Penelitian dilaksanakan pada Bulan September 2024 sampai Desember 2024 di Desa Mayangan, Kecamatan Gumukmas, Kabupaten Jember. Rancangan yang digunakan adalah Rancangan RAK Faktorial dengan 2 faktor perlakuan yaitu dosis rhizobium yang terdiri dari 4 taraf yaitu P0 (kontrol), P1 (5 g/lubang tanam), P2 (10 g/lubang tanam), dan P3 (15 g/lubang tanam) serta faktor konsentrasi sitokinin yang terdiri dari S0 (kontrol), S1 (10 ppm), S2 (20 ppm), dan S3 (30 ppm). Setiap perlakuan diulang sebanyak 3 kali dan didapatkan 48 unit percobaan. Hasil penelitian menunjukkan interaksi antara rhizobium dengan dosis 15 g/lubang tanam dan sitokinin dengan konsentrasi 30 ppm memberikan hasil terbaik dan berbeda nyata terhadap tinggi tanaman, jumlah daun, dan pengaruh berbeda sangat nyata terhadap jumlah cabang, jumlah bunga, berat biji basah, berat polong basah, potensi hasil, panjang akar, jumlah bintil akar, dan persentase bintil akar efektif.
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