Analisa Pengaruh Panjang Gelombang dan Waktu Iradiasi Laser terhadap Pertumbuhan Jamur Curvularia sp pada Tanaman Bibit Kelapa Sawit

Abstract

This research aims to analyze the influence of wavelength and laser irradiation time on the growth of Curvularia sp. fungus in oil palm seedlings. Curvularia sp. fungus is one of the main causes of diseases in oil palm trees, which can lead to significant losses in oil palm production. The research method involved treating the Curvularia sp. fungus growing on oil palm seedlings with laser irradiation. The laser wavelengths used were 405 nm, 450 nm, and 810 nm, while the laser irradiation times were 1 hour, 3 hours, 4 hours, and 5 hours. Fungal growth was measured by comparing the diameter of fungal colonies in each treatment. The results of the study indicate that the effect of laser wavelength on the growth of Curvularia sp. fungus in oil palm seedlings varies. The 405 nm laser wavelength resulted in more significant inhibition of fungal growth compared to the 450 nm and 810 nm laser wavelengths. Additionally, laser irradiation time also influenced fungal growth, with a 5-hour laser irradiation time being the most effective in inhibiting fungal growth.