Hayes and Garber - Cucurbit Breeding

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52 BREEDING CROP PLANTS certain contiguous units tend to yield high while others show a tendency in the opposite direction. Under these conditions a high correlation coefficient results. If variability due to random sampling only is entering, the correspondence between some contiguous plots will be counterbalanced by the lack of correspondence between others, providing that the number of ultimate units is sufficiently large to permit an expression of the law of average. It is obvious that in the application of Harris' method the field must receive the same treatment (seed, cultivation, fertilizer, etc.). The division of the field into the desired units may be made at any time before the crop is harvested, but preferably before or soon after planting in order to minimize possible injury to the growing crop. A simple illustration will make the calculation of the correlation coefficient clear, although a much larger number of units should be used in an actual study of the reliability of a field for plot work. Suppose a certain field is divided into 16 units and these units are in turn arranged in groups. Let pi, p 2 , p3 , etc., represent the ultimate units and C Pv C PV etc., represent the groups. By assigning values for yield in bushels per acre to the ultimate units, one may make the calculation necessary to apply the formula. The value of any particular group is the sum of the ultimate units in it. DIAGRAM ILLUSTRATING HARRIS' METHOD (2)
FIELD PLOT TECHNIC 53 Where r is PlP2 the constant sought, S is indicative of summation, C p the calculated values for the groups, pi, p 2 , etc., the assigned values for the ultimate units, m the number of groups, n the number of units in each group, p the average value of all the ultimate units and
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AGRICULTURAL AND BIOLOGICAL PUBLICA
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s'g S 2 ! o s s
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COPYRIGHT, 1921, BY THE McGRAW-HiLL
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PREFACE Since the early development
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. Early CONTENTS CHAPTER I INTRODUC
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CONTENTS xiii PAGE Color of grain a
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CONTENTS XV PAGE Sorghum 178 Origin
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CONTENTS xvn CHAPTER XIX FARMERS' M
Page 26 and 27: 2 BREEDING CROP PLANTS times by pri
Page 28 and 29: 4 BREEDING CROP PLANTS "In the vege
Page 30 and 31: 6 BREEDING CROP PLANTS more attenti
Page 32 and 33: 8 BREEDL\C CROP PLANTS by one of it
Page 34 and 35: 10 BREEDING CROP PLANTS 1. Variabil
Page 36 and 37: 12 BREEDING CROP PLANTS bud sports
Page 38 and 39: 14 BREEDING CROP PLANTS who gives t
Page 40 and 41: * CHAPTER II PLANT GENETICS 1 Since
Page 42 and 43: 18 BREEDING CROP PLANTS pair being
Page 44 and 45: 20 BREEDING CROP PLANTS The Inherit
Page 46 and 47: 22 BREEDING CROP PLANTS which are n
Page 48 and 49: 24 BREEDING CROP PLANTS There is a
Page 50 and 51: 26 BREEDING CROP PLANTS and Pr. let
Page 52 and 53: ! 28 BREEDING CROP PLANTS The gener
Page 54 and 55: 30 BREEDING CROP PLANTS intermediat
Page 56 and 57: 32 BREEDING CROP PLANTS a conceptio
Page 58 and 59: 34 BREEDING CROP PLANT* Group 4. Ve
Page 60 and 61: 36 BREEDING CROP PLANTS crosses. Sm
Page 62 and 63: 38 BREEDING CROP PLANTS mas protrud
Page 64 and 65: 40 BREEDING CROP PLANTS between the
Page 66 and 67: Average 42 BREEDING CROP PLANTS tob
Page 68 and 69: 44 BREEDING CROP PLANTS same for th
Page 70 and 71: 46 BREEDING CROP PLANTS order to il
Page 72 and 73: 48 BREEDING CROP PLANTS existence i
Page 74 and 75: 50 BREEDING CROP PLANTS basis of do
Page 78 and 79: 54 BREEDING CROP PLANTS for the pur
Page 80 and 81: 56 BREEDING CROP PLANTS four plots.
Page 82 and 83: 58 BREEDING CROP PLANTS TABLE XI. T
Page 84 and 85: 60 BREEDING CROP PLANTS series then
Page 86 and 87: 62 BREEDING CROP PLANTS central row
Page 88 and 89: 64 BREEDING CROP PLANTS nating rows
Page 90 and 91: 66 BREEDING CROP PLANTS The groupin
Page 92 and 93: 68 BREEDING CROP PLANTS Two men may
Page 94 and 95: 70 BREEDING CROP PLANTS A common pr
Page 96 and 97: 72 BREEDING CROP PLANTS method (1),
Page 98 and 99: 74 BREEDING CROP PLANTS flowers whi
Page 100 and 101: 76 BREEDING CROP PLANTS Classificat
Page 102 and 103: 78 BREEDING CROP PLANTS crosses bet
Page 104 and 105: 80 BREEDING CROP PLANTS and those f
Page 106 and 107: 82 BREEDING CROP PLANTS generation
Page 108 and 109: 84 BREEDING CROP PLANTS nuclei, the
Page 110 and 111: 86 BREEDING CROP PLANTS crosses bet
Page 112 and 113: 88 BREEDING CROP PLANTS The Howards
Page 114 and 115: 90 BREEDING CROP PLANTS CC. Lemma w
Page 116 and 117: 92 BREEDING CROP PLANTS development
Page 118 and 119: 94 BREEDING CROP PLANTS grains on h
Page 120 and 121: 96 BREEDING CROP PLANTS susceptibil
Page 122 and 123: 98 BREEDING CROP PLANTS gous forms
Page 124 and 125: 100 BREEDING CROP PLANTS was though
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102 BREEDING CROP PLANTS mediates b
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104 BREEDING CROP PLANTS crosses ha
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106 BREEDING CROP PLANTS Wild rye,
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108 BREEDING CROP PLANTS same plant
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110 BREEDING CROP PLANTS Time of cu
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112 KREEDINd CHOP PLANTS variety te
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114 BREEDING CROP PLANTS Selection.
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116 BREEDING CROP PLANTS of selecti
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CHAPTER IX SOME RESULTS OF SELECTIO
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120 BREEDING CROP PLANTS Briefly, i
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122 BREEDING CROP PLANTS In the abo
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124 BREEDING CROP PLANTS correlatio
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126 BREEDING CROP PLANTS likewise s
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128 BREEDING CROP PLANTS WHEAT SELE
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130 BREEDING CROP PLANTS TABLE XXVI
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CHAPTER X SOME RESULTS OF CROSSING
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134 BREEDING CROP PLANTS A Wheat Cr
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136 BREEDING CROP PLANTS Among othe
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138 BREEDING CROP PLANTS some of th
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140 BREEDING CROP PLANTS to quality
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142 BREEDING CROP PLANTS index is o
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144 BREEDING CROP PLANTS Factor sys
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146 BREEDING CROP PLANTS Later more
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148 BREEDING CROP PLANTS Parents Co
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150 BREEDING CROP PLANTS The Lyon b
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152 BREEDING CROP PLANTS isolated t
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154 BREEDING CROP PLANTS 4 FIG, 34.
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156 BREEDING CROP PLANTS same resul
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158 BREEDING CROP PLANTS grown for
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160 BREEDING CROP PLANTS longer tha
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162 BREEDING CROP PLANTS with the p
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164 BREEDING CROP PLANTS "4. When a
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166 BREEDING CROP PLANTS variabilit
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168 BREEDING CROP PLANTS 1910 to 19
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170 BREEDING CROP PLANTS
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172 BREEDING CROP PLANTS normal var
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174 BREEDING CROP PLANTS branching
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176 BREEDING CROP PLANTS hybrid seg
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178 BREEDING CROP PLANT* which are
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180 BREEDING CROP PLANTS the settin
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182 BREEDING CROP PLANTS organs. Th
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184 BREEDING CROP PLANTS Xenia may
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186 BREEDING CROP PLANTS manner as
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188 BREEDING CROP PLANTS to a singl
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190 BREEDING CROP PLANTS pure race
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192 BREEDING CROP PLANTS Studies of
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194 BREEDING CROP PLANTS B. RESULT
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196 BREEDING CROP PLANTS corn and g
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198 BREEDING CROP PLANTS TABLE XLV.
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200 BREEDING CROP PLANTS system of
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202 BREEDING CROP PLANTS Kempton we
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204 BREEDING CROP PLANTS general ru
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206 BREEDING CHOP PLANTS abnormalit
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208 BREEDING CROP PLANTS sis), Cana
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210 BREEDING CROP PLANTS plant sele
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212 BREEDING CROP PLANTS The practi
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214 BREEDING CROP PLANTS TABLE LIII
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216 BREEDING CROP PLANTS belong to
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218 BREEDING CROP PLANTS correlatio
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220 BREEDING CROP PLANTS approached
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222 BREEDING CROP PLANTS P. Segrega
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224 BREEDING CROP PLANTS 1. The het
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226 BREEDING CROP PLANTS TABLE LV.
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228 BREEDING CROP PLANTS These earl
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230 BREEDING CROP PLANTS For the 16
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232 BREEDING CROP PLANTS variety ca
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CHAPTER XVII BREEDING OF VEGETABLES
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236 BREEDING CROP PLANTS not known,
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238 BREEDING CROP PLANTS Le = long
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240 BREEDING CROP PLANTS TABLE LXI.
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242 BREEDING CROP PLANTS shell bean
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244 BREEDING CROP PLANTS data on th
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246 BREEDING CROP PLANTS TABLE LXII
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248 BREEDING CROP PLANTS need not b
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250 BREEDING CROP PLANTS radish pla
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252 BREEDING CROP PLANTS kohl-rabi.
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254 BREEDING CROP PLANTS TABLE LXV.
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256 BREEDING CROP PLANTS nucleus of
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258 BREEDING CROP PLANTS These data
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260 BREEDING CROP PLANTS recommende
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262 BREEDING CROP PLANTS varieties
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264 BREEDING CROP PLANTS TABLE LXVI
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266 BREEDING CROP PLANTS probably a
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268 BREEDING CROP PLANTS condition
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270 BREEDING CROP PLANTS very notic
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272 BREEDING CROP PLANTS these vari
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274 BREEDING CROP PLANTS bud sports
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The 276 BREEDING CROP PLANTS Stewar
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278 BREEDING CROP PLANTS made and 4
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280 BREEDING CROP PLANTS 1. A knowl
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282 BREEDING CROP PLANTS WHAT IS GO
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284 BREEDING CROP PLANTS METHODS OF
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286 BREEDING CROP PLANTS The seed p
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288 BREEDING CROP PLANTS report of
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290 BREEDING CROP PLANTS 5. Give sp
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292 BREEDING CROP PLANTS First Year
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DEFINITIONS 1 Acquired Character. A
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296 BREEDING CROP PLANTS Heredity.
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298 BREEDING CROP PLANTS Replicatio
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300 BREEDING CROP PLANTS BALLS, W.
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302 BREEDING CROP PLANTS CUMMINGS,
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304 BREEDING CROP PLANTS FRANDSEN,
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306 BREEDING CROP PLANTS HARRIS, J.
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308 BREEDING CROP PLANTS 1912. On t
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310 BREEDING CROP PLANTS LEAKE H. M
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312 BREEDING CROP PLANTS NILSSON-EH
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314 BREEDING CROP PLANTS RUSSELL, H
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316 BREEDING CROP PLANTS 1915. Die
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318 BREEDING CROP. PLANTS 1918. Inh
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320 INDEX Breeding, cotton, 177 cuc
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322 INDEX ( iaincs, disease resista
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324 INDEX Le Couteur, selection, sm
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326 INDEX Ray, species, first use o
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328 INDEX Wheat, artificial crossin
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