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

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Crop rotation efJects on grain yield and yield components ofbread wheat - Tilahun et al. Table 4. Effect of precursor crops on grain yield and other agronomic parameters of bread wheat, gena 1997 and bona 1996 and 1998, Sinana. Precursor crop Grain yield (k2lha) Kernels m- 2 , (no~) , 1000 KW (2) Spikes: Kernels m- 2 . !spik~ (no.) ' ' (nQ.) Harvest 'index ,(%) Yield/ ,splke , .(g) Primt Ileiglit Jcrn) Straw yiel(l (kgJha) Bona meher) 1996 Wheat 3265 9834 33 .23 337 29.65 30.00 0.983 117.13 7875 Barley 3398 10822 31.43 308 35.36 29.50 1.110 117.40 9060 Emmer wheat 3145 9651 32.59 282 34.61 29.72 1.126 117.30 7605 Faba bean 3674 11409 32.23 315 37.5 26.08 1.280 116.17 10776 Field pea 3359 10298 32.66 297 35.32 28.05 1.151 116.67 8694 Linseed 3284 9759 33.62 304 33.33 28.19 1.250 116.57 8417 Mean 3354 10296 32.63 307 34.29 28.26 1.170 116.87 8738 LSDJO.05) ns ns ns ns ns ns ns ns ns C.V.(%) 9.24 9.67 4.21 17.8 21.98 10.52 22.19 2.64 21.54 Gena (belg) 1997 Wheat 4104 11583 35.43 345 23.35 31 .38 0.828 110.00 9039 Barley 3990 11505 34.67 383 23.69 31.52 0.818 106.67 8736 Emmer wheat 4220 11809 35.73 354 25.66 31.81 0.917 108.50 9089 Faba bean 4386 12412 35.37 406 25.51 30.58 0.901 110.67 10019 Field pea 4337 12271 35.37 340 24.87 31.10 0.880 110.00 9687 Linseed 4341 12102 35.87 390 26.91 30.62 0.965 110.67 9969 Mean 4230 11942 35.41 370 25.00 31.17 0.885 109.42 9423 LSD(0.05) ns ns ns ns ns ns ns ns ns C.V.(%) 6.97 6.35 2.86 10.53 9.38 7.48 10.08 4.82 14.5 Bona meher) 1998 Wheat 3436 9240 37.20 616 29.99 28.20 1.117 8.55 8921 Barley 3798 10239 37.17 612 31.69 31 .23 1.173 92.20 8392 Emmer wheat 3388 9274 36.50 642 30.04 29.49 1.100 85.45 8040 Faba bean 4159 11431 36.50 699 36.81 29.95 1.339 91.02 9746 Field pea 4005 10820 37.10 653 33.45 29.91 1.239 90.65 9448 Linseed 3786 10104 37.63 675 29.85 29.34 1.120 93.65 9119 Mean 3762 10184 37.02 650 31.97 29.67 1.182 90.25 8944 LSD(0.05) ns ns ns ns ns ns ns ns ns C.V.(%) 8.19 8.8 2.48 11.08 14.87 8.16 14.58 4.7 9 323
Crop rotation effects on grain yield and yield components ofbread wheat - Tilahun et al. Table 5. Effect of fertilizer rates on grain yield and agronomic parameters of bread wheat gena 1997 and bona 1996 and 1998, Sin ana . , . Parainet~(s N-P:zOs .Grain 'K~(nels 1000 ";'Spikes Ker'rl'els · Harvest- Yh~ld " Plant S'traw rates 'yield m"2 KW .iit-2 /spike 'index Ispike height yield (kgl~ha) (kg/ha) '(no.) (g) (no.) , (1).0.) (%) (g) (cm) I(kgtl1a) Bona (meher) 1996 9-23 3303 10175 32,50 307 34.04 29.52 l.11 115.6 7995 41-46 3405 10417 32.75 307 34.55 27.00 l.13 118.2 9480 F-value 0.9 0.53 0.31 0.0005 0.04 6.45 0.08 6.4 5.6 Prob. ns ns ns ns ns 0.03 ns 0.03 0.04 Gena (belg) 1997 9-23 4177 11812 35.40 363 25.24 31.55 0.89 108.9 9128 41-46 4282 12082 35.42 377 24.76 30.80 0.88 109.9 9718 F-value l.13 1.14 0.0097 1.19 0.38 0.96 0.33 0.36 1.7 Prob. 0.3 0.3 ns 0.3 ns ns ns ns 0.22 Bona (meher) 1998 9-23 3483 9381 37.17 602 29.87 29,36 1.11 86.96 8374 41-46 4041 10988 36.90 697 34.07 30.01 1.25 93.50 9514 F-value 29.6 29 2.5 15.7 7.03 0.66 6.13 21.7 18.5 Prob. 0.0002 0.0002 0.09 0.002 0.02 ns 0.03 0.0006 0.001 Table 6. Regression and correlation coefficients of agronomic parameters of bread wheat grown following different crops gena 1997 and bona 1996 and 1998, Sinana. R2 . P·arameters . Model ' P N Straw yield (kglha) -22231 + 296.3 * plant height 0.48 0.008 12 Yield/spike (g) -1.216 + 0.035 * 1000 KW + 0.035 * kernels/spike 0.999 0.000 12 Kernels/m2 (no.) -6933 + 23.5 * productive tillers +297.8 * kernels/spike 0.977 0.000 12 Grain yield (kg/ha) -3746 + 107 *1000 KW + 0.35 * kernels/m2 0.998 0.000 12 324
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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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Response ofbread wheat genotypes to
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Response o/bread wheat genotypes to
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Developing wheat varieties for drou
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MILLING AND BAKING QUALITY OF SOUT
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Milling and baking quality ofSouth
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Milling and baking quality ofSouth
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Milling and baking quality ofSou th
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Response o/wheat genotypes to sowin
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Response ofwheat genotypes to sowin
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Mixtures offour wheat cultivars in
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Mixtures offour wheat cuttivars in
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THE ASSESSMENT AND SIGNIFICANCE OF
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Assessment a/pathogenic variability
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Assessment o/pathogenic variability
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Assessment ofpathogenic variability
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Assessment a/pathogenic variability
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SOURCES AND GENETIC BASIS OF VARIAB
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Sources ofvariability ofgenes for y
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PERFORMANCE OF FOUR NEW LEAF RUST R
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Performance offour new leafrust res
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HOST RANGE OF WHEAT STEM RUST IN ET
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Host range ofwheat stem rnst in Eth
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STABILITY OF STEM RUST RESISTANCE
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Stability ofstem rust resistance in
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Stability ofstem rust resistance in
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Field response o/bread wheat genoty
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Field response ofbread wheat genoty
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Field response a/bread wheat genoty
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Necessary to app~y insecticides to
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Necessary to apply insecticides to
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Necessary to apply insecticides to
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RUSSIAN WHEAT APHID RESISTANT WHEAT
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Integrated control using Russian wh
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Integrated control using Russian wh
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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 and fertiliz
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Page 285 and 286: Effects oftillage and cropping sequ
Page 301 and 302: Survey ofweed community structure -
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Page 311 and 312: EVALUATION OF HERBICIDES FOR THE CO
Page 313 and 314: Evaluation ofherbicides for the con
Page 319 and 320: Effects ofsurface drainage methods
Page 325 and 326: CROP ROTATION EFFECTS ON GRAIN YIEL
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Page 335 and 336: Impact ofcropping sequence and fert
Page 345 and 346: THE INTRODUCTION OF DISEASE AND PES
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Page 351 and 352: Reducing mechanical harvesting loss
Page 357 and 358: Effects ofcrop rotation, tillage me
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Page 361 and 362: ON-FARM EVALUATION OF THE RESPONSE
Page 363 and 364: Response offour bread wheat varieti
Page 369 and 370: TIMING NITROGEN APPLICATION TO ENHA
Page 371 and 372: Timing N application to enhance whe
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Page 375 and 376: DELAYED NITROGEN APPLICATION AND LA
Page 377 and 378: Delayed N application and late till
Page 379 and 380: 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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The Eleventh Regional Wheat Workshop For Eastern ... - Cimmyt

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