Electronic Theses and Dissertation

Pengaruh jarak tanam terhadap pertumbuhandan hasil beberapa galur mutan kedelai (glycine max l.) kipas putih generasi ke-8 (m8) effect of planting distance on growth and yield of several mutant lines of soybean (glycine max l) kipas putih 8th generation yusrijal1, zuyasna2, trisda kurniawan2 1mahasiswa program studi agroteknologi psdku gayo lues, fakultas pertanian, universitas syiah kuala 2dosen program studi agroteknologi psdku gayo lues, fakultas pertanian, universitas syiah kuala abstrak.kedelai (glycine max l.) merupakan komoditas pangan utama indonesia setelah padi dan jagung. salah satu upaya meningkatkan produktifitas kedelai dapat dilakukan dengan cara memperhatikan pengaturan jarak tanam. kedelai terlalu rapat akan mengakibatkan perubahan iklim dan mikro, sehingga mempengaruhi pertumbuhan dan hasil pada tanaman kedelai. selain jarak tanam, varietas juga berperan penting dalam produksi tanaman kedelai, karena untuk mencapai hasil yang tinggi sangat di tentukan oleh potensi genetiknya. penelitian ini bertujuan untuk mengetahui pengaruh jarak tanam serta interaksi antar kedua faktor tersebut terhadap pertumbuhan dan hasil tanaman kedelai beberapa galur mutan kedelai kipas putih generasi ke-8 (m8). penelitian ini telah dilaksanakan di kebun percobaan fakultas pertanian universitas syiah kuala darussalam banda aceh yang berlangsung dari bulan juli - september 2023. pengamatan hasil produksi penelitian dilakukan di laboratorium genetika dan pemuliaan tanaman dan di laboratorium ilmu dan teknologi benih jurusan agroteknologi, fakultas pertanian, universitas syiah kuala, darussalam, banda aceh. penelitian ini menggunakan rancangan acak kelompok pola faktorial 3 x 5 dengan 3 ulangan, sehingga terdapat 15 perlakuan dan masin-masing perlakuan terdapat 45 satuan unit percobaan. faktor yang diteliti yaitu jarak tanam yang terdiri dari 3 dari taraf : 40 cm x 20 cm, 40 cm x 30 cm, dan 40 cm x 40 cm serta faktor galur mutan terdiri dari 5 taraf yaitu : kedelai kipas putih, b4, b7, b18 dan b22. hasil penelitian menunjukkan bahwa perlakuan jarak tanam berpengaruh nyata terhadap jumlah cabang produktif. pertumbuhan dan hasil tanaman lebih baik dijumpai pada perlakuan jarak tanam 40 cm x 30 cm. perlakuan galur mutan berpengaruh nyata terhadap tinggi tanaman 35 hst, jumlah cabang 21 dan 28 hst, serta berat biji per tanaman. pertumbuhan dan hasil tanaman lebih baik dijumpai pada kedelai kipas putih galur mutan b7. kata kunci : jarak tanam, galur mutan, kedelai, kipas putih

Abstract. Soybeans (Glycine Max L.) are Indonesia's main food commodity after rice and corn. One effort to increase soybean productivity can be done by paying attention to plant spacing. Soybeans that are too dense will result in changes in climate and microclimate, thus affecting the growth and yield of soybean plants. Apart from planting distance, varieties also play an important role in soybean production, because achieving high yields is largely determined by genetic potential. This research aims to determine the effect of planting distance and the interaction between these two factors on the growth and yield of soybean plants in several 8th generation (M8) white fan soybean mutant lines. This research was carried out at the Experimental Garden of the Faculty of Agriculture, Syiah Kuala Darussalam University, Banda Aceh, which took place from July - September 2023. Observations of research production results were carried out in the Genetics and Plant Breeding Laboratory and in the Seed Science and Technology Laboratory, Department of Agrotechnology, Faculty of Agriculture, Syiah University Kuala, Darussalam, Banda Aceh. This research used a Randomized Block Design with a 3 x 5 factorial pattern with 3 replications, so that there were 15 treatments and for each treatment there were 45 experimental units. The factors studied were plant spacing which consisted of 3 levels: 40 cm x 20 cm, 40 cm x 30 cm, and 40 cm x 40 cm and the mutant line factor consisted of 5 levels, namely: White Fan Soybeans, B4, B7, B18 and B22. The results showed that the plant distance treatment had a significant effect on the number of productive branches. Better plant growth and yield were found in the plant spacing treatment of 40 cm x 30 cm. The mutant line treatment had a significant effect on plant height at 35 DAP, number of branches at 21 and 28 DAP, and seed weight per plant. Better plant growth and yield were found in the White Kipas soybeans, the B7 mutant line. Keyword : Plant spacing, mutant line, soybean, var. Kipas Putih