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Izmir presentation
Izmir presentation
Izmir presentation
Izmir presentation
Izmir presentation
Izmir presentation
Izmir presentation
Izmir presentation
Izmir presentation
Izmir presentation
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Izmir presentation

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  • 1. Resistance to yellow rust in selected wheat landraces from Pakistan J.I. Mirza*, H. Saffdar, R. Sultan, A. Majeed, A. Munir, Y. Rauf, M. Imtiaz, X.M. Chen, A. Wan and R. Ward *Crop Diseases Research Institute, PARC Substation Sunny Bank Murree Pakistan
  • 2. Epidemic intensity of rust diseases Loss of Rs. 67m Loss of Rs. 2580m (=137mUS $) Loss of Rs. 270 m (= 22mUS $) Historically rusts incurred significant yield losses to wheat production of Pakistan
  • 3. Seedling Resistance in Pakistani Wheat Landraces to US Yellow Rust Race Pstv-51 Infection type Resistant/susceptible Number of lines 0 Immune 1 1 Very resistant 5 2-4 Resistant 112 5-6 Moderately resistant 25 7-8 Moderately susceptible 46 9 Susceptible 7 Total 196
  • 4. Spatial distribution of Resistant/Susceptible Pakistani Wheat Landraces evaluated with Pstv-51 R MR MS S Total Azad Kashmir 10 15 33 0 58 Baluchistan 1 0 0 2 3 Northern areas 7 4 0 0 11 KPK 23 0 0 2 25 Punjab 53 5 1 1 60 Sindh 17 1 5 0 23 Unknown origin 7 0 0 0 7 Total 187
  • 5. 708 landraces screened under filed conditions Triticum turgidum subsp. durum, 8 Triticum aestivum subsp. sphaerococcum, 6 riticum aestivum subsp. aestivum, 690 Artificial inoculation with race 574233 (avir/vir: Yr5,10,15,24,32,SP,Exp2/1,2,6,8,7,9,17,27,43,44,Tr1,Tye)
  • 6. Spatial distribution of Susceptible/Resistant (%) Wheat Landraces from Pakistan
  • 7. Field Response of Pakistani Wheat Landraces at NARC in 2014 R RMR MR MRMS MS MSS S Total AJK 4 3 6 5 22 32 37 109 Baluchistan 4 1 1 2 0 54 205 267 Northern Areas 5 2 3 4 16 33 46 109 KPK 25 10 6 8 15 9 1 74 Punjab 84 21 6 5 4 1 121 Sind 11 5 4 0 0 1 3 24 Total 133 42 26 24 57 129 293 704 201 503
  • 8. Seedling Reactions of Pakistani Wheat Landraces to Yellow rust race 574233 Infection type Resistant/susceptible Number of lines 0 Immune 3 1 Very resistant 2 2-4 Resistant 33 5-6 Moderately resistant 86 7-8 Moderately susceptible 87 9 Susceptible 12 Total 223
  • 9. Susceptibility/ resistance in lines screened at seedling and adult stage in Pakistan Susceptible at all stages 24 Resistant at Seedling and Adult stage 16 Moderately susceptible at seedling and Susceptible at adult 34 Resistant at seedling and Susceptible at adult 6 Moderately susceptible at both seedling and adult 7 Susceptible at seedling and Resistant at adult 29 Moderately susceptible at seedling and Resistant at adult 19 Susceptible at seedling and Moderate at adult 5
  • 10. We gratefully acknowledge CIMMYT and the USDA for supporting this study

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