Pengaruh Aplikasi Mikoriza dan Intensitas Penyiraman Terhadap Bibit Main Nursery Kelapa Sawit

Abstract

RIZAL PRASETYA. Pengaruh Aplikasi Mikoriza dan Intensitas Penyiraman Terhadap Bibit Main Nursery Kelapa Sawit. Dibimbing oleh MERRY GLORIA MELIALA. Penelitian ini bertujuan mengetahui pengaruh intensitas penyiraman serta pengaruh dosis mikoriza serta interaksi antara pengaruh intensitas penyiraman yang berbeda dengan dosis mikoriza terhadap pertumbuhan bibit main nursery kelapa sawit. Penelitian ini menggunakan Rancangan Kelompok Lengkap Teracak (RKLT) 2 Faktor dengan enam perlakuan dan 3 ulangan yang melibatkan 72 bibit main nursery kelapa sawit. Parameter yang diamati meliputi curah hujan, tinggi tanaman, diameter batang, jumlah pelepah, jumlah akar primer dan sekunder serta panjang akar. Hasil menunjukkan penyiraman dengan intensitas berbeda berpengaruh nyata terhadap beberapa parameter seperti pertumbuhan tinggi tanaman, diameter batang dan bobot kering, sedangkan pada jumlah daun, panjang dan jumlah akar serta bobot basah bibit main nursery kelapa sawit tidak berbeda nyata. Perlakuan mikoriza berpengaruh nyata terhadap semua parameter, perlakuan M1 (mikoriza 50 g) tidak berbeda nyata dengan M2 (Mikoriza 100 g). Kombinasi perlakuan penyiraman dan dosis mikoriza berpengaruh nyata terhadap beberapa parameter, seperti pertambahan tinggi tanaman, pertambahan diameter batang dan pertambahan jumlah daun. Kombinasi terbaik ialah P2M2.

RIZAL PRASETYA. The Effect of Mycorrhiza Application and Watering Intensities on Oil Palm Seedlings in the Main Nursery. Supervised by MERRY GLORIA MELIALA. This study aimed to determine the effect of watering intensity, the effect of mycorrhiza dosage, and the interaction between different watering intensities and mycorrhiza dosages on the growth of oil palm seedlings in the main nursery. The experiment used a Randomized Complete Block Design (RCBD) with two factors, consisting of six treatments and three replications, involving 72 oil palm seedlings in the main nursery. Observed parameters included rainfall, plant height, stem diameter, number of fronds, number of primary and secondary roots, and root length. The results showed that different watering intensities had a significant effect on several parameters, such as plant height growth, stem diameter, and dry weight, while no significant differences were found in the number of leaves, root length, root number, and fresh weight of the seedlings. Mycorrhiza treatments significantly affected all parameters, with M1 (50g mycorrhiza) not significantly different from M2 (100g mycorrhiza). The combination of watering intensity and mycorrhiza dosage had a significant effect on several parameters, such as increases in plant height, stem diameter, and number of leaves. The best combination was P2M2.