﻿AND 
  STARCH 
  CHARACTERS 
  IN 
  CORN 
  ' 
  147 
  

  

  qualities 
  of 
  color, 
  form, 
  habit 
  of 
  growth, 
  etc., 
  was 
  tested 
  in 
  various 
  

   combinations 
  until 
  one 
  was 
  found 
  which 
  would 
  give 
  a 
  series 
  of 
  

   variants 
  of 
  these 
  basic 
  qualities, 
  such 
  as 
  we 
  find 
  in 
  so 
  many 
  groups 
  

   of 
  cultivated 
  plants. 
  

  

  .„ 
  ^^ 
  .x^t^^v. 
  that 
  Jones's 
  experiments 
  can 
  be 
  continued 
  

  

  till 
  an 
  adequate 
  unit 
  factorial 
  analysis 
  for 
  corn 
  is, 
  if 
  possible, 
  at- 
  

   tained. 
  The 
  economic 
  importance 
  of 
  the 
  crop 
  will 
  certainly 
  

   justify 
  this 
  procedure. 
  Judging 
  his 
  data 
  as 
  they 
  stand, 
  however, 
  

   it 
  seems 
  to 
  me 
  that 
  the 
  assumption 
  of 
  fluctuating 
  variations 
  and 
  

   mutual 
  modification 
  of 
  the 
  germ 
  plasms 
  with 
  each 
  succeeding 
  

   sexual 
  reproductive 
  cycle 
  of 
  synapsis, 
  chromosome 
  reduction, 
  cell 
  

   and 
  nuclear 
  fusion 
  and 
  chromosome 
  pairing 
  fits 
  the 
  facts 
  much 
  

   better 
  than 
  that 
  of 
  numerous 
  fixed 
  unit 
  factors 
  merely 
  shifting 
  

   their 
  interrelations 
  through 
  the 
  almost 
  endless 
  number 
  of 
  the 
  

   mathematically 
  possible 
  combinations 
  which, 
  it 
  Is 
  assumed 
  

   again, 
  they 
  can 
  enter 
  with 
  equal 
  freedom. 
  

  

  My 
  results 
  agree 
  with 
  those 
  of 
  Jones 
  that 
  these 
  Intermediate 
  

   kernels 
  tend 
  rather 
  strongly 
  to 
  propagate 
  their 
  kind 
  and 
  that 
  

   races 
  with 
  a 
  strong 
  tendency 
  to 
  their 
  production 
  can 
  be 
  isolated 
  

   by 
  selection. 
  I 
  am 
  discussing 
  elsewhere 
  the 
  possible 
  importance 
  

   of 
  such 
  races 
  as 
  what 
  I 
  have 
  proposed 
  to 
  call 
  meal 
  corns. 
  If 
  corn 
  

   Is 
  to 
  be 
  used 
  Increasingly 
  as 
  a 
  food 
  more 
  attention 
  should 
  be 
  paid 
  

   by 
  breeders 
  to 
  Improving 
  the 
  flavor 
  and 
  general 
  palatability 
  of 
  

  

  corns 
  to 
  be 
  used 
  in 
  making 
  meals. 
  

  

  In 
  my 
  own 
  work 
  intermediates 
  have 
  appeared 
  In 
  practically 
  

   all 
  of 
  my 
  crosses 
  between 
  sweets 
  and 
  flints, 
  dents, 
  flour 
  corns, 
  

   and 
  pop 
  corns. 
  I 
  have 
  also 
  observed 
  cases 
  of 
  the 
  spontaneous 
  

   appearance 
  of 
  intermediate 
  kernels 
  in 
  the 
  pure 
  bred 
  Black 
  Mexican 
  

   Sweet 
  and 
  some 
  other 
  sugar 
  corns 
  which 
  I 
  have 
  used. 
  Such 
  

   . 
  Intermediate 
  kernels 
  in 
  so-called 
  pure 
  races 
  occur 
  scattermgly 
  on 
  

   occasional 
  ears 
  and 
  I 
  have 
  observed 
  one 
  ear 
  which 
  showed 
  a 
  general 
  

   tendency 
  to 
  this 
  condition. 
  This 
  ear 
  probably 
  came 
  from 
  an 
  acci- 
  

   dentally 
  planted 
  intermediate 
  kernel. 
  As 
  noted 
  above 
  Correnr 
  -- 
  

   not 
  report 
  on 
  any 
  attempts 
  to 
  learn 
  how 
  the 
  hybrid 
  Fx 
  and 
  F, 
  kernels 
  

   which 
  he 
  reports 
  as 
  "slightly 
  wrinkled" 
  or 
  almost 
  smooth 
  would 
  

   behave 
  when 
  grown 
  and 
  selfed 
  or 
  crossed 
  back 
  on 
  their 
  .sweet 
  or 
  

   starch 
  parents. 
  The 
  occurrence 
  of 
  such 
  intermediates 
  ansmg 
  by 
  

   all 
  the 
  various 
  methods 
  noted 
  is 
  of 
  particular 
  Interest 
  m 
  view 
  of 
  the 
  

  

  does 
  

  

  