Variability of Stripe Rust on Occurrence in
Tigray, Ethiopia
Teklay Abebe, Worku D, Getaneh W
Plant Pathology Researcher
A...
 Introduction
 Potential threats and epidemics
 The spatial and temporal variability
 The performance of wheat genotyp...
Wheat belt areas
3
Introduction
Area and production trend of wheat
0
1
2
1997 2005
2013
0.77
1.44 1.7
Area (ha)
4
t/ha
Staple & strategic for achieving f...
Potential constraints to wheat production
5
Wheat rusts Pathogen Yield loss (%)
Stripe rust Puccinia striiformis 58-100
St...
Recurrent rust epidemics
Year Rusts Varieties Gene
1988 Stripe rust Dashen Yr9
1993/4 Stem rust Enkoy Sr 36
2010 Stripe ru...
Stripe rust epidemics in 2010
7
 Ethiopia experienced the largest
stripe rust epidemics
 About 600,000 ha affected
 Ove...
Distribution of stripe rust
8
Epidemic
Disease severity of stripe rust
9
 Altitude (m): 1551-
3000
 Temp. : 5-28o
C
 RF: 450-1200mm
Varieties
Pre
(%)
Incidence (%) Severity (%)
Range Mean Range Mean
Kubsa 100 5-100 70 20-100 71.1 MSS
Local 46.7 0-100 38 ...
No. Variety Response No. Variety Response  
1 Laketch 0(20S) 48 Kulkulu 10MR  
2 Romany BC 0 49 Bolo 0(50MS)  
33 Kenya Ny...
Cont’d
No. Variety Response No. Variety Response  
14 K6290 Bulk 0 6161 DenbiDenbi 30S30S  
15 K6295-4A 10MR 62 Selam 0  
...
Cont’dCont’d
No.No. VarietyVariety Response No.No. VarietyVariety Response   
2626 ShinnaShinna 20MS20MS 76 Illani 0  
27 ...
Cont’dCont’d
14No. Variety Response No. Variety Response  
37 Bobicho 15MR 87 Patwin 0  
38 Tossa 0 88 UC1600-Kern 0  
39 ...
Reaction of YR differential hostsReaction of YR differential hosts
DIFFERENTIALS YR GENE Response
YR5/6*AOC CX86.6.1.20  Y...
Concluding remarks
 Recurrent wheat rusts (stripe rust) epidemics is a key constraint to
Ethiopian farmers and beyond
 T...
Acknowledgements
ICARDA
TARI
EAAPP/KULUMSA ARC
DRRW/AMBO PPRC
EIAR
17
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Variablity of stripe rust tigray ethiopia by teklay abebe

  1. 1. Variability of Stripe Rust on Occurrence in Tigray, Ethiopia Teklay Abebe, Worku D, Getaneh W Plant Pathology Researcher April 28 to May 02/2014, Izmir, Turkey 2nd INTERNATIONAL WHEAT STRIPE RUST SYMPOSIUM
  2. 2.  Introduction  Potential threats and epidemics  The spatial and temporal variability  The performance of wheat genotypes  Conclusions  Acknowledgments 2 Presentation outline
  3. 3. Wheat belt areas 3 Introduction
  4. 4. Area and production trend of wheat 0 1 2 1997 2005 2013 0.77 1.44 1.7 Area (ha) 4 t/ha Staple & strategic for achieving food security Largest producer in SSA About 4MMT is produced by 5m HHs SSF Tigray : >0.21 m tones by over 0.5m HHS Productivity on Model farmers (5-6t/ha)
  5. 5. Potential constraints to wheat production 5 Wheat rusts Pathogen Yield loss (%) Stripe rust Puccinia striiformis 58-100 Stem rust P. graminis 67-100 Leaf rust P. recondita Up to 75 Septoria Leaf blotch Mycosphaerella graminicola/Zymoseptoria tritici 92
  6. 6. Recurrent rust epidemics Year Rusts Varieties Gene 1988 Stripe rust Dashen Yr9 1993/4 Stem rust Enkoy Sr 36 2010 Stripe rust Kubsa, Galama Yr27 2013 Stem rust Digalu SrTmp 6
  7. 7. Stripe rust epidemics in 2010 7  Ethiopia experienced the largest stripe rust epidemics  About 600,000 ha affected  Over $3 million worth of fungicides were distributed  Kubsa & Galema’s resistance broke ( Yr27 virulent race)  Tigray :Almost free of the epidemics
  8. 8. Distribution of stripe rust 8 Epidemic
  9. 9. Disease severity of stripe rust 9  Altitude (m): 1551- 3000  Temp. : 5-28o C  RF: 450-1200mm
  10. 10. Varieties Pre (%) Incidence (%) Severity (%) Range Mean Range Mean Kubsa 100 5-100 70 20-100 71.1 MSS Local 46.7 0-100 38 40-100 61.4MSS Dashen 100 20-100 20 25-25 25S Shinna 80 0-20 11.7 20-30 26.3MRS Digelu 41.7 0-15 5.3 15-30 22.5MRMS??? Kekeba 30 0-50 6.6 5-25 20MRS Danda'a 16.7 10 10 15 15MRMS Hawi 37.5 0-50 15.6 0-70 20S Shorima 0 0 0 0 0 Mekelle1,2,3 & 4 0 0 0 0 0(Stem Rust??) 10
  11. 11. No. Variety Response No. Variety Response   1 Laketch 0(20S) 48 Kulkulu 10MR   2 Romany BC 0 49 Bolo 0(50MS)   33 Kenya NyagumeKenya Nyagume 15MR15MR 50 Danda’a 20MS   44 Kenya LeopardKenya Leopard 30MS30MS 51 Kakaba 15MR   55 Africa MayoAfrica Mayo 40MS40MS 5252 HogganaHoggana 30MS30MS   6 Trophy 0 53 Shorima 20MR   7 Bounty 0(10S) 54 Huluka 10MR   8 Bonny 0(10S) 55 Quaiu#2 50MS   9 Frontach 0 56 Galil 0   10 Kenya Kudu 0(5MS) 5757 JeferssonJefersson 30MS30MS   11 Kenya Plume 0(10MS) 58 Arendeto 0   12 Dereselgne 0 59 Hitossa 10MR   13 Enkoy 0 60 Werer 0   11
  12. 12. Cont’d No. Variety Response No. Variety Response   14 K6290 Bulk 0 6161 DenbiDenbi 30S30S   15 K6295-4A 10MR 62 Selam 0   16 ET13A2 0 63 Megenagna 0 17 Pavon 76 0(90S) 64 Mettaya 0   1818 DashenDashen 100S100S 65 Ejerssa 10MR   19 Mitikie 0 66 Felakit 0   2020 GalemaGalema 100S100S 67 Malefia 40MR   AA MoroccoMorocco 100S100S 68 Mossobo 0   BB PBW343PBW343 20MS20MS 6969 ToltuToltu 10MS10MS    CC KubsaKubsa 100S100S 70 Obssa 0   21 Wabe 0 71 Lellisso 0   2222 AbolaAbola 70S70S 72 Tate 10R   2323 MegalMegal 40MS40MS 73 Bakalcha 0   24 Tusie 0(30MR) 74 Uda 0(10MS)   12
  13. 13. Cont’dCont’d No.No. VarietyVariety Response No.No. VarietyVariety Response    2626 ShinnaShinna 20MS20MS 76 Illani 0   27 Tura 0 7777 Local RedLocal Red 50S50S   28 Hawi 10MS 78 HAR 727 0   29 Maddawalabu 0 79 HAR 723 0(100S)   30 Simba 0 80 HAR 934 0(70S)   31 Sofumer 0(40S) 81 HAR 1018 0   32 Watera 15MR 82 HAR 820 15MS   33 Dodota 0 83 HAR 1407 0   34 Dure 0 84 HAR 1331 0   35 KBG-01 0(80S) 85 HAR 719 0(100S)   36 Sirbo 0 86 Lassik (-Yr5) 0   13
  14. 14. Cont’dCont’d 14No. Variety Response No. Variety Response   37 Bobicho 15MR 87 Patwin 0   38 Tossa 0 88 UC1600-Kern 0   39 Digalu 5MR 89 Clear white 0   40 Meraro 0(10MS) 90 Lassik (+Yr5) 0   41 Senkegna 0(10S) 91 UC110 0   42 Tay 0 92 Kern 0   43 Sulla 0 93 UC1107 0   44 Alidoro 0 94 Roelfs F2007 0   45 Millennium 0(30MS) 95 ETBW5795 0   46 Dinknesh 0 96 ETBW5520 0   47 Menze 0(50MS) 97 Local 0  
  15. 15. Reaction of YR differential hostsReaction of YR differential hosts DIFFERENTIALS YR GENE Response YR5/6*AOC CX86.6.1.20  Yr5 0 YR10/6* Avocet S  Yr10  0 YR15/6* Avocet S  Yr15 0(85S) YR26/3*AOC CX96.17.1.  Yr26 0(80S) YRSP/6*AOC CX94.14.1.15  YrSP 0(70S) YR1/6*Avocet S Yr1 40MS YR6/6*AOC CX94.2.2.25 Yr6 80S YR7/6* Avocet S Yr7 100S YR8/6* Avocet S Yr8 10MR YR9/6* Avocet S Yr9 100S YR17/3*AOC CX94.8.1.25 Yr17 70S YR18/3*AOC CX94.10.1.7 Yr18 60MS YR27/3*AOC CX94.19.1.1 Yr27 50MS AVOCET R YrA 10MR AVOCET S 100S Morocco 100S 15
  16. 16. Concluding remarks  Recurrent wheat rusts (stripe rust) epidemics is a key constraint to Ethiopian farmers and beyond  The breakdown of resistance is a common after two or three years of cultivation  Adaptation to warmer climate (Climate change) widening epidemics  The development & deployment of resistance + IDM is of concern  Establishments and strengthening of molecular labs & C. Building  National, regional and international collaboration & networking 16
  17. 17. Acknowledgements ICARDA TARI EAAPP/KULUMSA ARC DRRW/AMBO PPRC EIAR 17

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