Electronic Theses and Dissertation

Penelitian ini bertujuan untuk mengetahui pengaruh varietas dan dosis pupuk NPK phonska terhadap pertumbuhan dan hasil tanaman cabai merah dan interaksi diantara kedua perlakuan tersebut. Penelitian ini telah dilaksanakan di Kebun Percobaan Fakultas Pertanian, Universitas Syiah Kuala Darussalam Banda Aceh, dan di Laboratorium Fisiologi Tumbuhan dari Maret sampai dengan September 2023. Penelitian ini menggunakan rancangan acak kelompok (RAK) pola faktorial 3x4 dengan 3 kali ulangan sehingga sehingga terdapat 12 kombinasi perlakuan dan 36 satuan percobaan. Ada dua faktor yang diteliti, faktor pertama adalah varietas yang terdiri atas tiga taraf: V1 = Lado F1, V2 = TM-999, V3 = Perintis. Faktor kedua adalah dosis pupuk NPK (15:15:15) yang terdiri dari 4 taraf: D0 = 0 kg ha-1 D1 = 100 kg ha-1 D2 = 150 kg ha-1 D3 = 200 kg ha-1. Hasil penelitian menunjukkan bahwa perlakuan varietas berpengaruh sangat nyata terhadap tinggi tanaman 15 HST, jumlah cabang produktif, jumlah buah pertanaman, berat buah per tanaman, panjang buah dan diameter buah, namun berpengaruh tidak nyata terhadap parameter lainnya. Pertumbuhan dan hasil tanaman lebih baik dijumpai pada varietas Perintis. Dosis pupuk NPK berpengaruh sangat nyata terhadap diameter batang umur 15 HST, jumlah buah per tanam, berat buah per tanaman dan panjang buah. Namun berpengaruh tidak nyata terhadap tinggi tanaman umur 15, 30, dan 45 HST, diameter batang umur 30 dan 45 HST, jumlah cabang produktif dan diameter buah. Terdapat interaksi yang nyata antara jenis varietas cabai merah dan dosis pupuk NPK terhadap berat buah pertanaman. Pertumbuhan dan hasil tanaman lebih baik dijumpai pada dosis pupuk NPK 200 kg ha-1. Terdapat interaksi nyata antara varietas dan dosis pupuk NPK pada berat buah per tanaman cabai merah. Kombinasi terbaik dijumpai pada perlakuan varietas Perintis dan dosis pupuk NPK 200 kg ha-1.

This study aims to determine the effect of varieties and doses of NPK phonska fertilizer on the growth and yield of red chili plants and the interaction between the two treatments. This research was conducted at the Experimental Garden of the Faculty of Agriculture, Syiah Kuala Darussalam University, Banda Aceh, and at the Plant Physiology Laboratory from March to September 2023. This study used a group randomized design (RAK) 3x4 factorial pattern with 3 replications so that there were 12 treatment combinations and 36 experimental units. There are two factors studied, the first factor is the variety consisting of three levels: V1 = Lado F1, V2 = TM-999, V3 = Pioneer. The second factor is the dose of NPK fertilizer (15:15:15) which consists of 4 levels: D0 = 0 kg ha-1 D1 = 100 kg ha-1 D2 = 150 kg ha-1 D3 = 200 kg ha-1. The results showed that varietal treatment had a very significant effect on plant height at 15 HST, number of productive branches, number of fruits per plant, fruit weight per plant, fruit length and fruit diameter, but had no significant effect on other parameters. Plant growth and yield were better in the Pioneer variety. The dose of NPK fertilizer had a very significant effect on stem diameter at 15 HST, number of fruits per plant, fruit weight per plant and fruit length. However, the effect was not significant on plant height at 15, 30, and 45 HST, stem diameter at 30 and 45 HST, number of productive branches and fruit diameter. There is a significant interaction between the type of red chili varieties and the dose of NPK fertilizer on the weight of fruit per plant. Better plant growth and yield were found at a dose of NPK fertilizer of 200 kg ha-1. There is a significant interaction between varieties and doses of NPK fertilizer on fruit weight per red chili plant. The best combination was found in the treatment of Perintis varieties and the dose of NPK fertilizer 200 kg ha-1.