Uji Ketahanan Berbagai Varietas Kedelai Terhadap Fitoplasma

Abstract

Evaluation of Varietal Resistance of Soybean to Phytoplasma It has been known that phytoplasma inducing witches broom disease can infect various kind of leguminous plants in Indonesia, among others soybean. Information on the resistance of various kind of soybean varieties to the phytoplasma L still limited. Experiments were conducted to evaluate the resistance of ten soybean varietiesAines to the phytoplasma. The evaluation was carneed out by inoculation method through Orosius argentatus Evans, with two days of acquisition feeding period, ten days latent period and two days inoculation feeding period. Observation was conducted on the presence of phytoplasma, incubation period, symptom and number & weight of seed. The result indicated that line Malang 3474 was resistant, Sindoro and Sriono were tolerant, while the other tested varietiesAines, i.e. Galunggung, Orba, Ringgit, FElis, Malang 2999, Malang 2805 and Sicinang were susceptible.