Pathogenicity test of fungal leaf blight on sengon seedlings at Permanent Nursery Dramaga Bogor

Abstract

Sengon (Paraserianthes falcataria L. Nielsen) is a plant from the Fabaceae family that has a lot of potentials, both ecologically and economically, to be planted in rehabilitation areas. This study aimed to examine the pathogenicity of the fungus that causes leaf blight on sengon seedlings. The research method includes pathogenicity test activities consisting of field observations, pre-testing, and testing. The study used a Completely Randomized Factorial Design (RALF) and Duncan’s follow-up test. Rhizoctonia sp. has the fastest diameter growth compared to other fungi. Pathogenicity test results can be known that Rhizoctonia sp. produced the highest disease incidence and disease severity and was significantly different from other fungi. Rhizoctonia sp. produces 100% of disease incidence and 87.5% of disease severity. Wound treatment did not show a significant difference. Leaf blight spreads quickly over the entire surface of the sengon leaves, causing leaf fall and seedlings to die.

Uji Patogenisitas Cendawan Penyebab Penyakit Daun Pada Sengon Di Persemaian Permanen Dramaga Bogor

“…Gejala hawar daun yang ditemukan di lapangan ialah daun berubah warna menjadi abu-abu kehitaman. Gejala pada bibit sengon diawali dari ujung anak daun kemudian menyebar ke seluruh bagian daun dan warnanya akan menyatu pada seluruh permukaan daun, lalu menjadi kering dan rapuh, yang kemudian menyebar juga ke bibit lainnya (Syifaudin et al 2022, Rusae et al 2015.…”