International Journal on Science and Technology

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Volume 17 Issue 1
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Epidemiology and Host Plant Resistance of Wheat Agaisnt Stripe Rust with Special Emphasis on Biological Management

Author(s) Dr. Seethiya Mahajan, Ms. Priya Mankotia
Country India
Abstract Yellow rust is an important foliar disease of wheat causing a major decline in the food production worldwide. The present investigation was done to evaluate the behavior of the rust causing pathogen i.e. Puccinia striiformis f. sp. tritici in the agro-climatic zone of Amritsar, during the rabi season 2024-2025. The epidemiological studies showed the significant positive correlation between the minimum and maximum temperature as well as wind speed with the disease severity while the relative humidity and rainfall showed a non-significant correlation with disease severity. A total of thirty-three wheat cultivars were assessed against several parameters of Final Rust Severity, Area Under Rust Progression Curve, Relative Area Under Rust Progression Curve, Coefficient of Infection and infection rate for checking the response of these cultivars out of which six cultivars exhibited a resistant host response. Twenty-six cultivars showed moderate susceptible to moderate resistant response while one cultivar showed highly susceptible response against stripe rust. The dynamic nature of the rust pathogen leads to the emergence of new races of the pathogen that need better control methods for which four biological compounds namely neem leaf extract, fermented buttermilk, garlic clove extract and wood vinegar were assessed for their effectiveness against the rust pathogen. The maximum control was obtained through fermented buttermilk with the minimum control through wood vinegar
Keywords Area Under Rust Progression Curve, Coefficient of Infection, Final Rust Severity, infection rate, relative Area Under Rust Progression Curve
Field Biology > Agriculture / Botany
Published In Volume 17, Issue 1, January-March 2026
Published On 2026-01-25
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