Stripe Rust Disease Management of Winter Wheat through Host Resistance and Fungicides under Rainfed Conditions in Jammu, India

Among the various biotic constraints, stripe rust is known to cause significant losses in grain yield and quality of wheat. In this study, out of ۲۰ varieties evaluated, WH-۱۱۰۵, WH-۱۱۲۱, WH-۱۱۲۴, WH-۱۱۴۲, VL-۸۰۴, VL-۹۰۷, HS-۲۴۰ were found to be resistant; RSP-۵۶۱, Raj-۳۷۶۵, PBW-۶۶۴, PBW-۵۹۰ were moderately resistant; Raj-۳۰۷۷, PBW-۳۷۳, PBW-۱۷۵, PBW-۵۲۷, PBW-۶۲۱, HS-۴۹۰ were moderately susceptible, and PBW-۳۴۳, PBW-۵۵۰,HD-۲۹۶۷ were susceptible. Rust progressive curve had the highest value of ۲,۳۷۷.۴۲ during ۲۰۱۴/۲۰۱۵ due to conducive environmental conditions, while in ۲۰۱۵/۲۰۱۶, it was ۲۴۵۹.۴.The disease severity ranged from ۱.۰ to ۱۵.۳۰% at ۱۰thof February in ۲۰۱۴/۲۰۱۵, while this range in ۲۰۱۵/۲۰۱۶ was ۱.۰ to ۱۳.۳۹%. The highest yield (۴۴.۹۵ q ha-۱) was found in the plot treated with two sprays of Tilt @ ۰.۱% followed by two sprays of Folicur (۴۳.۴۷ q ha-۱) and Bayleton @۰.۰۱% (۴۳.۲ q ha-۱), respectively. Two sprays of Tilt (۰.۰۱ %) at ۱۵ days interval gave minimum disease severity i.e. ۴.۰۳% followed by Folicur (۵.۲۹%) and Bayleton @ ۰.۰۱% (۸.۹۰%). The yield increased up to ۳۴.۶۰% when treated with two sprays of Tilt (۰.۰۱%) at ۱۵ days interval.

کلیدواژه ها:

Puccinia striiformis ، Rust resistant variety ، Triticum spp.