﻿154 
  . 
  Harper: 
  Inheritance 
  of 
  sugar 
  

  

  been 
  planted, 
  an 
  ear 
  approximating 
  a 
  pure 
  dominant 
  would 
  have 
  

  

  F 
  

  

  been 
  obtained. 
  The 
  results 
  become 
  clearer 
  from 
  a 
  consideration 
  

  

  from 
  

  

  It 
  is 
  

  

  4 
  

  

  obvious 
  at 
  once, 
  however, 
  that 
  the 
  range 
  of 
  variation 
  In 
  the 
  char- 
  

   acters 
  sweet 
  and 
  starch 
  in 
  these 
  F3 
  intermediate 
  kernels 
  extends 
  in 
  

   some 
  cases 
  at 
  least 
  so 
  as 
  to 
  include 
  both 
  of 
  the 
  original 
  parent 
  

   types. 
  There 
  is 
  no 
  evidence 
  in 
  this 
  case 
  of 
  the 
  segregation 
  at 
  once 
  

   of 
  a 
  factor 
  or 
  group 
  of 
  factors 
  for 
  intermediate 
  nor 
  of 
  the 
  produc- 
  

   tion 
  of 
  a 
  mutant 
  which 
  then 
  at 
  once 
  breeds 
  true. 
  

  

  The 
  other 
  four 
  ears 
  of 
  the 
  series, 
  ears 
  164 
  b, 
  c, 
  d, 
  and 
  e, 
  bring 
  

   out 
  still 
  more 
  clearly 
  the 
  fluctuating 
  character 
  of 
  the 
  qualities 
  

   here 
  involved. 
  Ear 
  164 
  b 
  gives 
  only 
  sweet 
  and 
  intermediate 
  

   kernels, 
  133 
  intermediate 
  to 
  71 
  sweet, 
  a 
  ratio 
  of 
  34 
  per 
  cent 
  sweet 
  

   to 
  65 
  per 
  cent 
  intermediate. 
  The 
  translucencv 
  of 
  

  

  most 
  

  

  gives 
  

  

  the 
  opaque 
  white 
  of 
  the 
  intermediate 
  kernels 
  is 
  also 
  conspicuous 
  

   and 
  their 
  less 
  wrinkled 
  surfaces 
  make 
  therri 
  easily 
  recognizable 
  in 
  

   the 
  photograph. 
  

  

  ■ 
  

  

  Ear 
  164 
  c 
  shows 
  three 
  dimpled 
  dent 
  kernels 
  with 
  132 
  inter- 
  

   mediate 
  and 
  52 
  sweet, 
  a 
  ratio 
  of 
  about 
  1+ 
  per 
  cent 
  starchy: 
  70+ 
  

   per 
  cent 
  intermediate: 
  27+ 
  per 
  cent 
  sweet. 
  The 
  number 
  of 
  

   intermediates 
  is 
  larger 
  here 
  again 
  than 
  the 
  number 
  of 
  sweet 
  ker- 
  

   nels, 
  and 
  three 
  dimpled 
  kernels 
  appear. 
  

  

  Ear 
  164 
  d 
  should 
  probably 
  be 
  classed 
  as 
  giving 
  only 
  sweet 
  

   and 
  intermediate 
  kernels 
  though 
  it 
  is 
  difficult 
  to 
  be 
  certain 
  of 
  the 
  

   character 
  of 
  the 
  kernels 
  at 
  the 
  ends 
  of 
  two 
  of 
  the 
  rows 
  and 
  two 
  

   kernels 
  should 
  perhaps 
  be 
  classed 
  as 
  flints. 
  Counting 
  them 
  as 
  

   intermediates 
  we 
  have 
  123 
  intermediates 
  to 
  62 
  sweets, 
  something 
  

   like 
  a 
  ratio 
  of 
  2:1. 
  The 
  position 
  of 
  this 
  ear 
  in 
  such 
  a 
  series 
  as 
  we 
  

   have 
  here 
  is 
  perhaps 
  doubtful. 
  It 
  has 
  a 
  larger 
  proportion 
  of 
  fully 
  

   wrinkled 
  kernels 
  than 
  ear 
  164 
  c, 
  but 
  on 
  the 
  other 
  hand 
  its 
  inter- 
  

   mediates 
  tend 
  more 
  toward 
  the 
  dent 
  type, 
  especially 
  in 
  color. 
  

   The 
  ear 
  in 
  general 
  shows 
  more 
  opaque 
  white 
  than 
  ear 
  164 
  c, 
  in 
  

   which 
  the 
  translucency 
  due 
  to 
  the 
  sweet 
  character 
  is 
  more 
  in 
  

   evidence. 
  

  

  Ear 
  164 
  e 
  gives 
  12 
  dimpled 
  dent 
  kernels, 
  some 
  of 
  which 
  are 
  

   almost 
  flint-like; 
  177 
  intermediate 
  and 
  56 
  sweet, 
  a 
  ratio 
  of 
  4 
  + 
  

   per 
  cent 
  starchy: 
  72+ 
  per 
  cent 
  intermediate: 
  22 
  per 
  cent 
  sweet. 
  

  

  