New sources of stripe rust resistance in international winter wheat nurseries

evaluated in Uzbekistan in 2013

O. Amonov, Z. Ziyaev, D. Musurmonov, S. Alikuov, A. Amanov, R. C. Sharma

2ND INTERNATIONAL WHEAT STRIPE RUST

SYMPOSIUM

IZMIR, TURKEY

APRIL 28-MAY 01, 2014

Wheat in Uzbekistan (2012)

• Area: 1.4 million ha• Production: 6.5 million t• Productivity: 4.7 t/ha

Source: FAO, 2013

CONSTRAINTS OF WHEAT PRODUCTION IN UZBEKISTAN

• Yellow Rust

• Leaf rust

• Terminal heat stress

• Salinity

• Low soil organic matter content

• Weed problem (costs causing less use of herbicides)

• Sun pest

WHEAT BREEDING OBJECTIVES

• High and stable grain yield• Good bread-making quality• Earliness• Plant height (90-100 cm) • Resistance to diseases • Winter hardiness• Drought resistance• Heat tolerance• Salt tolerance• Resistance to lodging

MAIN WHEAT BREEDING RESEARCH MAIN WHEAT BREEDING RESEARCH INSTITUTIONS IN UZBEKISTANINSTITUTIONS IN UZBEKISTAN

GALLARAL

KARSHI

TASHKENT

Multilocation evaluation of wheatMultilocation evaluation of wheat

GALLARAL

KARSHI

TASHKENT

TERMEZ

KHOREZM

NUKUS

FERGANA

Evaluation for stripe rust

Spore multiplicationSeedling evaluation (Karshi)

InoculationField evaluation (Kibray)

Natural and artificial epidemics of yellow rust in winter wheat nurseries in Uzbekistan, 2013

Krasnodar-99, Uzbekistan, 2013

Wheat nurseries evaluated in 2013Uzbekistan

• 16th IWWYT-IR• 15th IWWYT-SA• 13th YT-IR• 13th AYT-IR• 13th AYT-SIR

• Uzb Agro-ecological Yield Trial

• Uzb Preliminary Yield Trial

• CAC Yield Trial

• 20th FAWWON-IR• 20th FAWWON-SA• 4th IWSRRSN

• Trap nurseries• Key location nurseries

• Salinity yield trials

Stripe rust resistant identified in International Nurseries in 2013, Uzbekistan, being further

evaluated in 2014

NurseryTotal

number of entries

Number of stripe rust resistant

lines

No. of resistant lines advanced

to 2014%

16 IWWYT-IR 40 20 14 35

15 IWWYT-SA 30 11 8 27

20 FAWWON-IR 165 80 23 14

20 FAWWON-SA 111 39 15 14

Stripe rust resistant lines indentified in 2013, Uzbekistan for advanced yield trial in 2014

Trait(s) evaluatedNumber selected

Yellow rust (YR) 132

YR+ Maturity 83

YR + maturity +plant height 57

YR + maturity +plant height +grain yield + quality 10

Superior lines advanced to 2014

Pedigree / Name SourceStripe rust

sev (%)

Yield (t/ha)Karshi

Yield (t/ha)Kibray

Kambara1/Kalyoz-17 16IWWYTIR-6 30 8.349 4.475

TAM200/Kauz//Becuna-6 16IWWYTIR-7 5 7.170 3.436

Seri.1B*2/3/Kauz*2/Bow//Kauz/4/Bagci2002 16IWWYTIR-9 0 6.038 4.508

Agri/Nac//Kauz/4/55.1744/Mex67.1//No57/3/Attila 16IWWYTIR-11 5 8.208 4.519

JI5418/MARAS//SHARK/F4105W2.1 16IWWYTIR-14 0 8.302 5.272

Shark-1/3/Agri/Bjy//Vee/4/Shark/F4105W2.1 16IWWYTIR-15 0 8.396 5.142

Shark-1/3/Agri/Bjy//Vee/4/Shark/F4105W2.1 16IWWYTIR-16 5 6.981 4.431

4WON-IR-257/5/Ymh/Hys//Hys/Tur3055/3/Dga/4/Vpm/Mos

16IWWYTIR-25 0 7.925 5.989

Zarrin/Shiroodi/6/Zarrin/5/Omid/4/BB/Kal//Ald/3/Y50E/Kal*3//Emu

16IWWYTIR-32 25 8.302 5.892

Local Check (Jaihun) 70 8.491 2.736

LSD0.05 22 1.104 1.538

CV (%) 23 7.4 16.9

New Variety identified in 2013 to be submitted in 2014

Shark-1/3/Agri/Bjy//Vee/4/Shark/F4105W2.1 YR =0 GY =8.4 t/ha

Uzbekistan hosted International Winter Wheat Travelling seminar (20 – 25 May 2013)

Around 50 scientists from 11 countries participated

Summary

• More than 100 new lines resistant to stripe rust were identified in international nurseries evaluated under severe epidemics (inoculated and natural) in Uzbekistan in 2013

• Ten stripe rust resistant lines, superior for grain yield, and with acceptable quality and agronomic traits are being evaluated in 2014

• One candidate cultivar was identified for submission to State Variety Test Commission in 2014

I would like to summarize my presentation here

Thank you for attention