Analisis Struktur Vegetasi dan Keanekaragaman Gulma pada Agroekosistem Kacang Panjang (Vigna unguiculata) di Aceh Barat

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Rayhan Amadius Weihan
Hilmina Itawarnemi
Chairudin Chairudin
Putri Mustika Sari
Zulia Ananda

Abstract

Persaingan gulma dengan tanaman budidaya merupakan faktor pembatas utama dalam produksi kacang panjang (Vigna unguiculata) di lahan gambut, khususnya di wilayah dengan fluktuasi iklim yang dinamis seperti Aceh Barat. Penelitian ini bertujuan untuk mengidentifikasi komposisi jenis dan menganalisis struktur komunitas gulma pada lahan budidaya kacang panjang di Desa Ujung Tanoh Darat, Meureubo, Aceh Barat. Penelitian dilaksanakan pada November hingga Desember 2025 dengan metode kuadrat melalui peletakan 10 plot sampel secara acak berukuran 0,5 m × 0,5 m pada fase vegetatif tanaman (4 hingga 6 MST). Hasil identifikasi menunjukkan terdapat delapan spesies gulma yang terbagi dalam tiga kelompok: berdaun lebar (5 spesies), rerumputan (2 spesies), dan teki-tekian (1 spesies). Berdasarkan analisis vegetasi, Ludwigia octovalvis dan Fimbristylis littoralis ditemukan sebagai spesies dominan dengan nilai Summed Dominate Ratio (SDR) masing-masing sebesar 23,05% dan 22,71%. Dominansi ini didukung oleh kondisi iklim tipe A (Sangat Basah)  dengan ketiadaan bulan kering yang memicu pertumbuhan gulma hidrofit dan sub-hidrofit pada lahan gambut dengan drainase buruk. Nilai indeks keanekaragaman Shannon-Wiener (H’ = 1,576) dan kemerataan (E = 0,758) berada pada kategori sedang, sementara indeks kekayaan spesies Margalef (Dmg = 1,268) tergolong rendah. Struktur komunitas gulma yang belum stabil dan didominansi oleh spesies kompetitif menuntut penerapan strategi Pengelolaan Gulma Terpadu  melalui kombinasi pengendalian mekanis dan kultur teknis untuk menjaga produktivitas kacang panjang di lahan gambut secara berkelanjutan.

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Author Biographies

Rayhan Amadius Weihan, Universitas Teuku Umar

Program Studi Agroteknologi, Universitas Teuku Umar, Aceh Barat, Indonesia

Hilmina Itawarnemi, Universitas Teuku Umar

Program Studi Agroteknologi, Universitas Teuku Umar, Aceh Barat, Indonesia

Chairudin Chairudin, Universitas Teuku Umar

Program Studi Agroteknologi, Universitas Teuku Umar, Aceh Barat, Indonesia

Putri Mustika Sari, Universitas Teuku Umar

Program Studi Agroteknologi, Universitas Teuku Umar, Aceh Barat, Indonesia

Zulia Ananda, Universitas Syiah Kuala

Program Studi Biologi Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Syiah Kuala, Banda Aceh, Indonesia

How to Cite
Weihan, R. A., Itawarnemi, H., Chairudin, C., Sari, P. M., & Ananda, Z. (2026). Analisis Struktur Vegetasi dan Keanekaragaman Gulma pada Agroekosistem Kacang Panjang (Vigna unguiculata) di Aceh Barat. Agroteknika, 9(3). https://doi.org/10.55043/agroteknika.v9i3.683

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