Regional Wheat Rust Research Station, Mahabaleshwar - 412 806
The field trial was conducted at A.R.S., Kasbe Digraj during three consecutive Kharif crop seasons (2000–01, 2001–02 and 2002–03) in a randomized block design with three replications. Studies were undertaken to evaluate soybean genotypes for a stable type of resistance reactions. The rate of soybean rust over a period of time was measured by area under disease progress curve (AUDPC) on ten genotypes of soybean inoculated with heavy load inoculum of Phakopsora pachyrhizi The varieties DS 228 and DS 227 exhibited resistant reaction relative to other genotypes. The apparent infection rate of DS 228 was found very less compared to other genotypes. The genotypes were placed in order of their resistant reactions based on AUDPC value.
The variety DS 228 was found most resistant while JS 335 was found most susceptible.
Soybean rust, genotypes, AUDPC, Slow rusting.
