Electronic Theses and Dissertation

Nilam (Pogostemon cablin Benth.) merupakan tanaman herba yang dapat menghasilkan minyak atsiri, baik dari daun, cabang, batang, maupun akar. Upaya untuk meningkatkan pertumbuhan dan hasil nilam dapat dilakukan menggunakan mikoriza, varietas-varietas nilam yang unggul, dan perlakuan tanah entisol. Penelitian ini dilaksanakan di Kebun Percobaan I dan Laboratorium Hortikultura Fakultas Pertanian Universitas Syiah Kuala, pada bulan Januari sampai dengan Mei 2022 dengan menggunakan Rancangan Acak Kelompok (RAK) pola faktorial 3 x 2 dengan 3 ulangan, sehingga terdapat 6 kombinasi perlakuan dan 18 pot percobaan. Peubah yang diamati yaitu tinggi tanaman, diameter pangkal batang, jumlah daun, jumlah cabang, berat berangkasan basah, berat berangkasan kering dan persentase akar terkolonisasi mikoriza. Hasil penelitian menunjukkan perlakuan jenis mikoriza berpengaruh sangat nyata terhadap tinggi tanaman 60 HST dan persentase akar terkolonisasi mikoriza. Berpengaruh nyata terhadap parameter tinggi tanaman 45 HST dan jumlah daun 45 HST, serta berpengaruh tidak nyata pada diameter pangkal batang, jumlah cabang, berat berangkasan kering dan berat berangkasan basah tanaman. Perlakuan beberapa varietas berpengaruh sangat nyata pada parameter tinggi tanaman 45 HST, diameter pangkal batang 60 HST dan persentase akar terkolonisasi mikoriza. Berpengaruh nyata terhadap tinggi tanaman 15, 60 HST dan diameter pangkal batang 30,45 HST serta jumlah daun 15 HST tetapi tidak berpengaruh nyata pada parameter jumlah cabang, berat berangkasan kering dan berat berangkasan basah tanaman.

Patchouli (Pogostemon cablin Benth.) is a herbaceous plant that can produce essential oils, both from leaves, branches, stems and roots. Efforts to increase the growth and yield of patchouli can be carried out using mycorrhiza, superior patchouli varieties, and entisol soil treatment. This research was conducted at the Experimental Garden I and the Horticulture Laboratory, Faculty of Agriculture, Syiah Kuala University, from January to May 2022 using a 3 x 2 factorial Randomized Block Design (RBD) with 3 replications, so there were 6 treatment combinations and 18 experimental pots. The observed variables were plant height, diameter of stem base, number of leaves, number of branches, fresh weight, dry weight and percentage of mycorrhizal colonized roots. The results showed that the type of mycorrhizal treatment had a very significant effect on plant height at 60 DAP and the percentage of mycorrhizal colonized roots. Significantly affected the parameters of plant height at 45 DAP and number of leaves at 45 DAP, and had no significant effect on stem diameter, number of branches, dry and fresh plant weight. The treatment of several varieties had a very significant effect on the parameters of plant height at 45 HST, stem diameter at 60 HST and the percentage of mycorrhizal colonized roots. Significantly affected plant height 15.60 DAP and stem diameter 30.45 DAP and number of leaves 15 DAP but had no significant effect on the parameters of the number of branches, dry and wet plant weight.