Infection of Phakopsora pachyrhizi Rust Fungus on Seven Soybean Varieties in Pine and Mahogany Agroforestry

Pine and mahogany agroforestry systems are a few alternatives to increase soybean production. However, soybeans in agroforestry systems have problems with disease infection. One of the most important diseases is leaf rust caused by Phakopsora pachyrhizi . The study aims to compare the infection index and rate of P. pachyrhizi on seven soybean varieties in pine and mahogany agroforestry. The research was conducted at KHDTK (Kawasan Hutan dengan Tujuan Khusus) Alas Bromo in Karanganyar, Central Java, Indonesia, using a Completely Randomized Block Design and seven soybean varieties (Anjasmoro, Argomulyo, Dena-1, Dena-2, Denasa-1, Denasa-2, and Devon-1) with three repetitions. The results represented that infection of P. pachyrhizi rust fungus in the mahogany agroforestry system had a higher index and faster infection rate.