Biometric analysis of yield-related traits in response to black rust (Puccinia graminis f. sp. tritici) in wheat genotypes

Document Type : Research Paper

Authors

1 Deportment of Agronomy and Plant Breeding, University of Mohaghegh Ardabili, Ardabil, Iran.

2 Deportment of Biotechnology and Plant Breeding, University of Tabriz, Tabriz, Iran.

3 Crop and Horticultural Science Research Department, East Azarbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Tabriz, Iran.

4 Seed and Plant Improvement Institute, Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran.

Abstract

To investigate the effect of black rust disease (Puccinia graminis f. sp. tritici) on wheat yield and its components and to identify genetic resources resistant to this disease, 24 wheat genotypes were evaluated in 2020-2021 at the East Azarbaijan Research Center for Agriculture and Natural Resources. The evaluation was conducted under both infected and non-infected conditions with the native race TKTTF of the black rust, using a randomized complete block design with three replications. Talcum powder was used for inoculation, and after sprinkling distilled water and saltrol oil on the plants, inoculation was done using a mechanical sprinkler. The test results indicated a significant difference between the genotypes in terms of plant height, spike length, spike diameter, spike weight, number of seeds per spike, hundred seed weight, seed yield, biomass and harvest index was observed at the probability level of 1%. Additionally, the results demonstrate that pathogen infection causes a decrease in stem diameter, number of seeds per spike, hundred seed weight, seed yield, biomass and harvest index. Based on the studied traits, the Zareh and Heyran cultivars, as well as the C-98-14, C-98-13, C-98-12 and CD-94-5 lines, were identified as resistant genotypes. The genotypes were classified into four groups under infection and non-infection conditions and into three groups under medium infection conditions, based on cluster analysis and detection function analysis. The research results indicate that black rust infection has a negative impact on both the yield and its components. Additionally, the diversity between genotypes can be utilized to enhance wheat genotypes.

Keywords

References

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Journal of Applied Research in Plant Protection
Volume 13, Issue 3
September 2024
Pages 303-317

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History

  • Receive Date: 20 December 2023
  • Revise Date: 17 March 2024
  • Accept Date: 18 March 2024

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