Electronic Theses and Dissertation

Penurunan hasil tanaman kedelai disebabkan oleh beberapa faktor, salah satunya diakibatkan oleh pertumbuhan gulma di sekitar area tanaman kedelai. herbisida yang dapat mengendalikan gulma tanaman kedelai yaitu oksifluorfen dan pendimethalin. penelitian ini bertujuan untuk mengetahui pengaruh jenis dan dosis herbisida oksifluorfen dan pendimethalin pada hasil tanaman kedelai. penelitian dilaksanakan di desa blang krueng, kecamatan baitussalam, kabupaten aceh besar, dan laboratorium pengelolaan gulma, program studi agroteknologi, fakultas pertanian, universitas syiah kuala, banda aceh. penelitian ini berlangsung dari februari - mei 2024. penelitian ini menggunakan rancangan acak kelompok pola faktorial 2 x 5 dengan 3 ulangan. faktor yang diteliti ada dua taraf yaitu jenis herbisida yang terdiri dari oksifluorfen dan pendimethalin, dan faktor dosis yang terdiri dari 0, 0,5, 1, 1,5 dan 2 kg b.a ha-1 sehingga terdapat 10 kombinasi perlakuan, terdapat 30 satuan percobaan. peubah yang diamati adalah bobot kering gulma, indeks persentase keracunan tanaman, jumlah polong per tanaman, jumlah biji per tanaman, bobot biji per tanaman, bobot 100 butir, dan hasil biji kering. herbisida oksifluorfen dapat menurunkan bobot kering gulma dan herbisida pendimethalin mampu menurunkan indeks persentase keracunan tanaman. dosis 0,5-1 kg b.a. ha-1 mampu menurunkan bobot kering gulma dan menurunkan indeks keracunan tanaman. terdapat interaksi antara jenis dan dosis herbisida pada indeks persentase keracunan tanaman pada 1 mst. kata kunci : oksifluorfen, pendimethalin, hasil tanaman kedelai

The decline in soybean yields is caused by several factors, one of which is caused by the growth of weeds around the soybean crop area. Herbicides that can control soybean weeds are oxyfluorfen and pendimethalin. This study aims to determine the effect of the type and dose of oxyfluorfen and pendimethalin herbicides on soybean crop yields. The research was conducted in Blang Krueng Village, Baitussalam District, Aceh Besar Regency, and Weed Management Laboratory, Agrotechnology Study Program, Faculty of Agriculture, Syiah Kuala University, Banda Aceh. This research took place from February - May 2024. This study used a 2 x 5 factorial pattern Randomized Group Design with 3 replications. The factors studied were two levels, namely the type of herbicide consisting of oxyfluorfen and pendimethalin, and the dose factor consisting of 0, 0.5, 1, 1,5 and 2 kg b.a ha-1 so that there were 10 treatment combinations, there were 30 experimental units. The observed variables were weed dry weight, fitotoxicity percentage index, number of pods per plant, number of seeds per plant, seed weight per plant, 100-grain weight, and dry seed yield. Oxyfluorfen herbicide can reduce weed dry weight and pendimethalin herbicide can reduce the percentage index of fitotoxicity. Doses of 0.5-1 kg b.a. ha-1 were able to reduce weed dry weight and reduce the fitotoxicity. There is an interaction between the type and dose of herbicide on the percentage index of fitotoxicity at 1 WAP. Keywords: Oxyfluorfen, Pendimethalin, Soybean Plant Yield