The Eleventh Regional Wheat Workshop For Eastern ... - Cimmyt

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Sources ofvariability ofgenes for yellow rust resistance - Singh alld Huerta-Espino F31ines (No.) 70 60 50 40 30 (/) 20 10 o Qi -- t) o ~ + 5 10 15 20 30 40 50 60 70 80 90 100 Yellow rust severity (%) Fig. 2. Distribution of 298 F3 lines from the cross of susceptible parent Avocet 5 with resistant parent Kukuna Table 1. Usual seedling infection type (IT) and adult plant responses (APR) observed in Mexico on race-specific genes present in CIMMYT germplasm. Gene Yrl Yrl5 Yrl7 ?C ? ? ? ? Yr28 ? ? Response Seedling ITa 01 1 23 34 23 45 45 56 45 12 13 APR b . 0 0 5MR 5R-MR 0 5R-MR 20MR 60M 30MR 1MR 1MR Line TJB368.2511Buc//Oci V763.2312/V879.C8.11.11.11(36)/Star/3/Star Milan Pastor, Bobwhite, Tinamu, Ducula Catbird SW89.20891Kauz Weaver Star Altar 84/Ae. tauschii//Opata Opata//Sora/Ae. tauschii (323) Croc lIAe. tauschii (205)1lKauz/3/Sasia a Seedling infection type follow a 0-9 scale as described in Roelfs et al. (1992). b <strong>The</strong> APR has two components, % rust severity based on the modified Cobb Scale (Peterson et al. 1948) and response to infection as described by Roelfs et al. (1992). C Unknown, probably new, genes for resistance. 149
Sources ofvariability ofgenes for yellow rust resistance - Singh and Huerta-Espino Table 2. Yellow rust responses, as observed at hot-spot field sites in four countries, for resistant lines included in the genetic analysis . ,. ".': •' '.' '. Yellow rust r:t!sponse~ Cross & selection history New name Ni:exlco • ····Ecuador Kenya Iran '. ToniIYacol/Kauz*3/Trap Chapio 0 1 1 SR CG84-099Y -099M-1 Y -SM-3Y-OB TrapNaco//Kauz*3ITrap Tukuru 1 1 1 0 CG96-099Y -099M-17Y-6M-2Y-OB Sni/HD2281 liStar Mirtu 1 1 1 20R CG13-099Y-099M-9Y-IM-4Y-OB SniiTonii/Kauz*3/Trap Kuruku 1 S 1 20MR CG22-099Y -099M-50Y-2M-2Y-OB SnilPB W 651IKauz* 3/Trap Kukuna 1 1 1 20MR CG36-099Y -099M-69Y-1 M-4Y-OB HD2281/Pvn//Kauz*3/Trap Konkitu 1 5 5 10MR CG40-099Y-099M-21 Y -4M-5Y-OB Pvn/Yacol/Kauz*3/Trap Kakatsi 1 1 0 0 CG68-099Y -099M-15Y-1 M-2Y-OB PvnIPBW65//Kauz*3/Trap Khuaki 1 1 5 10MR CG74-099Y-099M-41 Y-4M-4Y-OB Toni/Trap//Kauz*3/Trap Tsapki 1 1 5 20MR CG78-099Y -099M-22Y-4M-1 Y -OB ToniNacol IBav92 Chos 0 1 1 1R CG82-099Y-099M-5Y-4M-2Y-OB TrapNacol IBav92 Jarumba 0 1 1 lR CG94-099Y-099M-10Y-1M-4Y-OB . a Adult plant field response has two components: % severity based on the modIfied Cobb Scale (Peterson et al. 1948) and reaction to infection as described by Roelfs et al. (1992). Data recorded when susceptible checks show 100% severity. ISO
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The Eleventh Regional Wheat Worksh
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CIMMYT® (www.cimmyt.cgiar.org) is
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Table a/Contents 105 Developing whe
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Table o/Contents 366 Delayed nitrog
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e>..... I Countries participating i
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Welcome on behalfo/CIMMYT Board a/T
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Welcome on behalfofCIMMYTBoard ofTr
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CIMMYT'S NE\V APPROACH TO ADDRESS W
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CIMMYT's Global Project 5 - Pfeiffe
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SOURCES OF VARIATION FOR GRAIN YIEL
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Sources ojvariation Jar grain yield
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Sources ofvariation for grain yield
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Germplasm enhancement through molec
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Germplasm enhancement through moiec
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Gennplasm enhancement through molec
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Germplasm enhancement through molec
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QUALITY OF ETHIOPIAN DURUM WHEAT CU
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Quality ofEthiopian durum wheat cul
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On-farm demonstration ofimproved du
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On-farm demonstration ofimproved du
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Identification o/Ethiopian wheat cu
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Identification ofEthiopian wheat cu
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Identification ojEthiopian wheat cu
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GENETIC IMPROVEMENT IN GRAIN YIELD
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Genetic improvement in wheat grain
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Genetic improvement in wheat grain
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(;p.np.tir. imnrovp.mp.nl in WhP.fl
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Increasing yield potential for marg
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Increasing yield potentialfor margi
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Increasing yield potentialfor margi
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BREAD WHEAT YIELD STABILITY ANI) EN
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Bread wheat yield stability and env
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Milling and baking quality ofEthiop
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Page 107 and 108: Response ofbread wheat genotypes to
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Page 115 and 116: Developing wheat varieties for drou
Page 121 and 122: MILLING AND BAKING QUALITY OF SOUT
Page 123 and 124: Milling and baking quality ofSouth
Page 125 and 126: Milling and baking quality ofSouth
Page 127 and 128: Milling and baking quality ofSou th
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Page 131 and 132: Response o/wheat genotypes to sowin
Page 133 and 134: Response ofwheat genotypes to sowin
Page 139 and 140: Mixtures offour wheat cultivars in
Page 141 and 142: Mixtures offour wheat cuttivars in
Page 143 and 144: THE ASSESSMENT AND SIGNIFICANCE OF
Page 145 and 146: Assessment a/pathogenic variability
Page 147 and 148: Assessment o/pathogenic variability
Page 149 and 150: Assessment ofpathogenic variability
Page 151 and 152: Assessment a/pathogenic variability
Page 153 and 154: SOURCES AND GENETIC BASIS OF VARIAB
Page 155 and 156: Sources ofvariability ofgenes for y
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Page 161 and 162: PERFORMANCE OF FOUR NEW LEAF RUST R
Page 163 and 164: Performance offour new leafrust res
Page 169 and 170: HOST RANGE OF WHEAT STEM RUST IN ET
Page 171 and 172: Host range ofwheat stem rnst in Eth
Page 173 and 174: STABILITY OF STEM RUST RESISTANCE
Page 175 and 176: Stability ofstem rust resistance in
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Page 179 and 180: Field response o/bread wheat genoty
Page 183 and 184: Field response ofbread wheat genoty
Page 187 and 188: Field response a/bread wheat genoty
Page 193 and 194: Necessary to app~y insecticides to
Page 195 and 196: Necessary to apply insecticides to
Page 197 and 198: Necessary to apply insecticides to
Page 199 and 200: RUSSIAN WHEAT APHID RESISTANT WHEAT
Page 201 and 202: Integrated control using Russian wh
Page 203 and 204: Integrated control using Russian wh
Page 205 and 206: Development oflinear equations for
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Development oflinear equations for
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BREEDING FOR DISEASE RESISTANCE IN
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Breeding f or disease resistance in
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Breedingfor disease resistance in w
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Breedingfor disease resistance in w
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SPATIAL TOOLS FOR WHEAT RESEARCH I
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Spatial tools for wheat research -
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Spatial toolsjor wheat research - H
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Response ofsome durum wheat landrac
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Response a/some durum wheat landrac
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Agronomic and economic evaluation o
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Effects ofsoil waterlogging on conc
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Effects a/soil waterlogging on conc
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Effects ojsoil waterlogging on conc
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EFFECT OF CROP ROTATION AND FERTILI
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Effect ofcrop rotation andfertilize
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Effect ofcrop rotation and fertiliz
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Effect ofcrop rotation andfertilize
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Effects oftillage and cropping sequ
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Survey ofweed community structure -
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Survey ofweed community stntcture -
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EVALUATION OF HERBICIDES FOR THE CO
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Evaluation ofherbicides for the con
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Effects ofsurface drainage methods
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CROP ROTATION EFFECTS ON GRAIN YIEL
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Crop rotation effects on grain yiel
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Impact ofcropping sequence and fert
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THE INTRODUCTION OF DISEASE AND PES
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Introduction ofdisease and pest res
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Introduction ofdisease and pest res
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Reducing mechanical harvesting loss
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Effects ofcrop rotation, tillage me
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Effects ofcrop rotation, tillage me
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ON-FARM EVALUATION OF THE RESPONSE
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Response offour bread wheat varieti
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TIMING NITROGEN APPLICATION TO ENHA
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Timing N application to enhance whe
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Timing N application to enhance whe
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DELAYED NITROGEN APPLICATION AND LA
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Delayed N application and late till
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RESPONSE OF WEED INFESTATION AND GR
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Response ofweed infestation and gra
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FARMER PARTICIPATORY EVALUATION OF
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Farmer participatory evaluation ofb
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Farmer participatory evaluation o/b
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Client oriented research approach t
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Client oriented research approach t
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Economics offertilizer use on durum
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Economics oJJertilizer use on durom
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On-farm analysis ofdurum wheat prod
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A study o/the adoption o/bread whea
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A study ofthe adoption ofbread whea
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Eleventh Regional Wheat Workshop Pa
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