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4. Measurements ReI. GY Relative grain yield expressed as percentage of the mean grain yield of the trial. Values above 100% indicate above-average performance; values below 100% indicate below-average performance. RankAvg. Average rank for grain yield across all trials. Small values indicate superior performance; large values indicate inferior performance. RankStdev. Standard deviation of rank for grain yield across all trials. Small values indicate stable performance; large values indicate variable performance. Grainyleld Shelled grain weight per plot adjusted to 12.5% grain moisture and converted to tons per hectare. Anthesis date Measured as number of days after planting when 50% ofthe plants shed pollen. Plant height Measured as height between the base of a plant to the insertion of the first tassel branch ofthe same plant. Ear height Measured as height between the base of a plant to the insertion of the top ear ofthe same plant. Ear position Ear height expressed as a percentage of plant height. Small values indicate low ear position; large values indicate high ear position. ~ Measured as percentage of plants that show root lodging, i.e. those stems are inclining by more than 45°. Stem lodging Measured as percentage of plants that show stem lodging, i.e. those stems are broken below the ear. Husk cover Measured as percentage of plants with ears that are not completely covered by the husks. Earrol Percentage of ears that are rotten. Score for the severity of gray leaf spot (Cercospora zeae-maydis) symptoms rated on a scale from 1 (= clean, no infection) to 5 (= severely diseased). Puce. sorghi Score for the severity of common rust (Puccinia sorghi) symptoms rated on a scale from 1 (= clean, no infection) to 5 (= severely diseased). E. tureicum Score for the severity of northern leaf blight (Exserohilum turcicum) symptoms rated on a scale from 1 (= clean, no infection) to 5 (= severely diseased). Striga count Number of Striga hermonthica plants emerged using artificial infestation. Large values indicate susceptibility to Striga, small values indicate partial resistance to Striga. Chilo part. Score for the severity of Chilo partellus leaf damage rated on a scale from 1 (= no infestation) to 9 (= severely infested). Grain weevil Number of grain weevils hatching and emerging from an infested grain sample within a given period. Large values indicate susceptibility to grain weevils, small values indicate partial resistance to grain weevils. Grain texture Grain moisture Rated on a scale from 1 (= flint) to 5 (=dent). As measured at harvest. 37
Page 2 and 3: CIMMYT The International Maize and
Page 4 and 5: 1. Introduction ~ The trials evalua
Page 6 and 7: Fig 1. CIMMYT Maize Mega-Environmen
Page 8 and 9: 0-, Eotry ..&dIg.... Origin Acrc:ll
Page 10 and 11: 00 Entry Pedigree OrigIn AcroM G..f
Page 12 and 13: EIHYB99 Results of early and Inferm
Page 14 and 15: IlHYB99 Results of mlermoolalO and
Page 16 and 17: OrigllJ Across Grain yield RelGY Ra
Page 18 and 19: % Avg Sldev llha Rank IIha Ran'" II
Page 20 and 21: ~tltry PedJ!lree Across Gr-aln yiel
Page 22 and 23: ~ ,.. • ~~ • "~- - -- .- EIlUY
Page 24 and 25: Enll)l P.dls.... Across I Drought.t
Page 26 and 27: Entry l'ildlgree Across Grain yield
Page 28 and 29: Enlly Pedigree I Across Grain yield
Page 30 and 31: ·.; Across Grain yield ... Lowland
Page 32 and 33: E1HV899: Resul~ 01 early .1nd Inter
Page 34 and 35: ... ~ PedIg... Across N stress Drou
Page 36 and 37: _~ PAl\i133'~ IlHYB!l'9 ROhlll\..-
Page 40 and 41: Leaf rolling Senescence Anthesis-si
Page 42 and 43: Trial classification Country Site C
Page 44 and 45: .j>. tv South Africa Tanzania Tanza

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