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  yielding 
  variety 
  in 
  the 
  southern 
  sections. 
  The 
  above 
  examples 
  

   are 
  only 
  a 
  few 
  of 
  many 
  that 
  might 
  be 
  cited 
  to 
  show 
  the 
  short- 
  

   comings 
  of 
  most 
  of 
  the 
  varieties 
  of 
  walnuts 
  now 
  being 
  propagated. 
  

  

  The 
  wide 
  range 
  of 
  climatic 
  and 
  soil 
  conditions 
  makes 
  the 
  eventual 
  

   propagation 
  of 
  quite 
  a 
  large 
  number 
  of 
  varieties 
  inevitable. 
  While 
  

   the 
  coast 
  regions 
  are 
  bathed 
  in 
  fog 
  nearly 
  every 
  morning 
  during 
  the 
  

   growing 
  season, 
  the 
  inland 
  valleys 
  experience 
  an 
  extremely 
  dry 
  ch- 
  

   mate 
  with 
  high 
  maximum 
  temperatures! 
  Walnuts 
  are 
  being 
  grown 
  

   at 
  the 
  present 
  time 
  on 
  soil 
  types 
  varying 
  from 
  the 
  extremes 
  of 
  

   sand 
  to 
  heavy 
  clay 
  loams. 
  Many 
  of 
  the 
  future 
  varieties 
  must 
  be 
  

   especially 
  adapted 
  to 
  some 
  one 
  of 
  these 
  particular 
  environments 
  

   if 
  they 
  are 
  to 
  stand 
  the 
  test 
  of 
  time. 
  

  

  Many 
  of 
  the 
  present 
  seedling 
  groves 
  are 
  of 
  uncertain 
  origin 
  and 
  

   represent 
  greatly 
  varying 
  values. 
  No 
  doubt 
  some 
  of 
  these 
  groves 
  

   are 
  the 
  progeny 
  of 
  especially 
  selected 
  trees 
  known 
  to 
  have 
  consid- 
  

   erable 
  merit. 
  On 
  the 
  other 
  hand, 
  it 
  is 
  very 
  apparent 
  that 
  many 
  of 
  

   them 
  are 
  the 
  result 
  of 
  a 
  great 
  demand 
  for 
  seedling 
  trees 
  when 
  the 
  

   industry 
  was 
  in 
  its 
  infancy 
  twenty 
  or 
  thirty 
  years 
  ago. 
  At 
  that 
  

   time 
  without 
  doubt, 
  great 
  quantities 
  of 
  walnuts 
  were 
  planted 
  with- 
  

   out 
  due 
  regard 
  for 
  their 
  parentage. 
  Again, 
  there 
  is 
  a 
  wide 
  range 
  of 
  

   variability 
  among 
  the 
  individual 
  trees 
  of 
  any 
  grove, 
  as 
  variations 
  

   in 
  type 
  of 
  tree, 
  blooming 
  season, 
  character 
  of 
  foliage, 
  resistance 
  to 
  

   disease, 
  productivity 
  and 
  character 
  of 
  the 
  nuts. 
  

  

  Type 
  of 
  Tree 
  

  

  The 
  tree 
  types 
  vary 
  from 
  the 
  upright, 
  sturdy 
  individual 
  to 
  the 
  

   more 
  or 
  less 
  spreading, 
  weeping 
  types 
  which 
  droop 
  nearly 
  to 
  the 
  

   ground 
  under 
  the 
  burden 
  of 
  the 
  crop. 
  The 
  upright, 
  vigorous 
  grow- 
  

   ing 
  type 
  is 
  well 
  exemplified 
  in 
  the 
  Eureka. 
  On 
  the 
  other 
  hand, 
  

   such 
  varieties 
  as 
  the 
  Prolific 
  have 
  a 
  spreading, 
  bushy 
  habit 
  and 
  an 
  

   almost 
  semi-dwarfness 
  characterizes 
  their 
  growth. 
  

  

  Blooming 
  Season 
  

  

  It 
  is 
  not 
  unusual 
  to 
  find 
  the 
  blooming 
  season 
  in 
  an 
  ordinary 
  seed- 
  

   ling 
  grove 
  extending 
  over 
  a 
  period 
  of 
  from 
  a 
  month 
  to 
  six 
  weeks. 
  

   A 
  few 
  individual 
  trees 
  leaf 
  out 
  and 
  blossom 
  with 
  the 
  first 
  signs 
  of 
  

   spring. 
  Then 
  the 
  great 
  majority 
  of 
  the 
  trees 
  in 
  the 
  grove 
  come 
  out 
  

   in 
  full 
  leaf. 
  But 
  there 
  are 
  frequently 
  trees 
  still 
  leafless 
  after 
  the 
  

   nuts 
  on 
  the 
  early 
  individuals 
  are 
  of 
  the 
  size 
  of 
  a 
  marble. 
  This 
  

   variation 
  in 
  the 
  blooming 
  season 
  has 
  considerable 
  economic 
  im- 
  

   portance 
  in 
  relation 
  to 
  the 
  harvesting 
  and 
  marketing 
  of 
  the 
  nuts 
  as 
  

   well 
  as 
  the 
  avoidance 
  of 
  diseases 
  and 
  frost 
  which 
  may 
  be 
  more- 
  

   prevalent 
  during 
  certain 
  periods 
  in 
  the 
  spring. 
  

  

  