Electronic Theses and Dissertation

Tanaman cabai merah (Capsicum annuum) merupakan komoditas hortikultura yang berkaitan erat dengan kehidupan sehari-hari masyarakat Indonesia yaitu sebagai bumbu dapur, industri bubuk cabai, hingga industri farmasi. Produktivitas cabai merah di Aceh yang masih fluktuatif dapat disebabkan oleh degradasi tanah, hilangnya zat organik, serta degradasi mikroorganisme tanah. Oleh karena itu perlu dilakukannya suatu upaya untuk mempertahankan tingkat kesuburan lahan dan produktivitas tumbuhan cabai dengan memanfaatkan penggunaan asam humat dan mikoriza yang tepat. Penelitian ini bertujuan untuk untuk mengetahui pengaruh berbagai dosis asam humat dan jenis mikoriza serta interaksi antara keduanya terhadap pertumbuhan dan hasil tanaman cabai merah. Penelitian ini dilaksanakan di Kebun Percobaan 2 dan Laboratorium Hortikultura Fakultas Pertanian Universitas Syiah Kuala Banda Aceh, dimulai dari April 2023 sampai dengan Desember 2023. Penelitian ini menggunakan Rancangan Acak Kelompok pola Faktorial dengan 2 faktor dan 3 ulangan. Faktor pertama adalah asam humat yang terdiri atas empat taraf yaitu 0 g tanaman-1 (kontrol), 5 g tanaman-1, 10 g tanaman-1 dan 20 g tanaman-1. Faktor kedua adalah jenis mikoriza yang terdiri dari tiga taraf yaitu tanpa mikoriza (kontrol), mikoriza Glomus mosseae, dan mikoriza Gigaspora sp. Penelitian ini terdiri dari 12 kombinasi perlakuan dengan tiga ulangan sehingga terdapat 36 satuan percobaan. Hasil penelitian menunjukkan bahwa perlakuan asam humat berpengaruh sangat nyata terhadap diameter tanaman 30 HST, berat basah akar tanaman, dan berat kering akar tanaman, namun tidak berpengaruh nyata terhadap tinggi tanaman 15,30,45 HST, diameter tanaman 15, 45 HST, persentase akar terkolonisasi mikoriza, jumlah cabang per tanaman, berat buah per tanaman, jumlah buah per tanaman, berat basah tanaman, dan berat kering tanaman. Perlakuan mikoriza berpengaruh sangat nyata terhadap tinggi tanaman 15 HST, Diameter tanaman 30, 45 HST, presentase akar terkolonisasi, berat basah tanaman, berat basah akar tanaman, berat kering akar tanaman, berpengaruh nyata terhadap diameter tanaman 15 HST, namun berpengaruh tidak nyata terhadap tinggi tanaman 30, 45 HST, jumlah cabang per tanaman, berat buah per tanaman, jumlah buah per tanaman, dan berat kering tanaman. Hasil analisis ragam menunjukkan bahwa terdapat interaksi nyata antara perlakuan asam humat dan mikoriza terhadap pertumbuhan dan hasil tanaman cabai.
Kata Kunci: Cabai, Asam Humat, Mikoriza

Red chilli (Capsicum annuum) is a horticultural commodity that is closely related to the daily lives of Indonesian people, namely as a kitchen spice, chili powder industry, and pharmaceutical industry. The fluctuating productivity of red chilli in Aceh can be caused by soil degradation, loss of organic matter, and degradation of soil microorganisms. Therefore, it is necessary to make an effort to maintain the level of land fertility and productivity of chili plants by utilizing the proper use of humic acid and mycorrhiza. This study aims to determine the effect of various doses of humic acid and mycorrhiza types and the interaction between the two on the growth and yield of red chili plants. This research was conducted in Experimental Garden 2 and Horticulture Laboratory of Faculty of Agriculture, Syiah Kuala University, Banda Aceh, starting from April 2023 to December 2023. This study used a Randomized Group Design Factorial pattern with 2 factors and 3 replications. The first factor was humic acid consisting of four levels, namely 0 g plant-1 (control), 5 g plant-1, 10 g plant-1 and 20 g plant-1. The second factor was the type of mycorrhiza which consisted of three levels, namely no mycorrhiza (control), Glomus mosseae mycorrhiza, and Gigaspora sp. This study consisted of 12 treatment combinations with three replications so that there were 36 experimental units. The results showed that humic acid treatment had a very significant effect on plant diameter 30 DAP, fresh mass of plant roots, and dry mass of plant roots, but had no significant effect on plant height 15, 30, 45 DAP, plant diameter 15, 45 DAP, percentage of mycorrhiza-colonized roots, number of branches per plant, fruit mass per plant, number of fruits per plant, plant fresh weight, and plant dry weight. Mycorrhiza treatment had a very significant effect on plant height 15 DAP, plant diameter 30, 45 DAP, percentage of colonized roots, fresh mass of plant, fresh mass of plant root, dry mass of plant root, had a significant effect on plant diameter 15 DAP, but had no significant effect on plant height 30, 45 DAP, number of branches per plant, fruit mass per plant, number of fruits per plant, and dry mass of plant. The results of the analysis of variance showed that there was a significant interaction between humic acid treatment and mycorrhiza on the growth and yield of chili plants. Keywords: Chilli, Humic Acid, Mycorrhiza