﻿82 
  

  

  iiiadc 
  .such 
  a 
  success 
  of 
  blueberry 
  culture. 
  I 
  sent 
  him 
  some 
  cuttings, 
  

   and 
  he 
  reports 
  as 
  follows 
  : 
  

  

  "Two 
  experiments 
  were 
  tried 
  with 
  the 
  hickory 
  cuttings 
  received 
  

   from 
  Dr. 
  W. 
  C. 
  Deniing 
  on 
  January 
  5, 
  1911. 
  In 
  one 
  experiment 
  some 
  

   of 
  the 
  cuttings 
  were 
  placed 
  in 
  a 
  glass 
  cutting 
  bed 
  in 
  live 
  sphagnum 
  

   covered 
  with 
  sand, 
  the 
  upper 
  ends 
  of 
  the 
  cuttings 
  projecting 
  from 
  the 
  

   sand. 
  The 
  atmosphere 
  above 
  the 
  cutting 
  bed 
  was 
  kept 
  in 
  a 
  state 
  of 
  

   saturation 
  by 
  a 
  covering 
  of 
  glass. 
  The 
  bed 
  was 
  kept 
  shaded 
  and 
  was 
  

   subjected 
  to 
  an 
  ordinary 
  living 
  room 
  temperature 
  varying 
  from 
  about 
  

   55° 
  to 
  70°, 
  or 
  occasionally 
  a 
  few 
  degrees 
  higher. 
  

  

  On 
  January 
  11 
  the 
  cambium 
  ring 
  at 
  the 
  lower 
  end 
  of 
  the 
  cuttings 
  

   had 
  begun 
  to 
  callus. 
  On 
  February 
  17 
  the 
  upper 
  bud 
  on 
  one 
  of 
  the 
  cut- 
  

   tings 
  began 
  to 
  push. 
  Later 
  some 
  of 
  the 
  other 
  cuttings 
  began 
  to 
  swell 
  

   preparatory 
  to 
  the 
  development 
  of 
  new 
  growth. 
  All 
  the 
  cuttings, 
  how- 
  

   ever, 
  finally 
  died. 
  It 
  appeared 
  from 
  their 
  behavior 
  that 
  the 
  tempera- 
  

   tures 
  to 
  which 
  they 
  were 
  subjected 
  were 
  too 
  high 
  for 
  their 
  best 
  develop- 
  

   ment. 
  

  

  In 
  the 
  other 
  experiment 
  the 
  cuttings 
  were 
  placed 
  in 
  sand 
  without 
  

   sphagnum 
  in 
  a 
  greenhouse 
  at 
  a 
  temperature 
  ordinarily 
  of 
  50° 
  to 
  65°, 
  

   rising 
  occasionally, 
  however, 
  on 
  still, 
  sunny 
  days 
  to 
  70°. 
  After 
  a 
  few 
  

   weeks, 
  these 
  cuttings 
  were 
  well 
  callused 
  and 
  the 
  buds 
  began 
  to 
  swell 
  

   slowly, 
  exposing 
  first 
  their 
  green 
  bracts, 
  and 
  later 
  on 
  some 
  of 
  the 
  cut- 
  

   tings 
  the 
  green 
  compound 
  leaves, 
  pushing 
  out 
  from 
  among 
  the 
  bracts. 
  

   These 
  cuttings 
  also, 
  however, 
  finally 
  turned 
  black 
  and 
  died, 
  but 
  not 
  

   until 
  after 
  the 
  first 
  of 
  April. 
  

  

  The 
  experiments 
  showed 
  that 
  hickory 
  cuttings, 
  when 
  taken 
  at 
  a 
  

   suitable 
  time 
  of 
  year 
  and 
  exposed 
  to 
  conditions 
  suited 
  to 
  other 
  hard 
  

   wooded 
  plants 
  known 
  to 
  be 
  difficult 
  to 
  root, 
  retained 
  their 
  vitality 
  and 
  

   passed 
  satisfactorily 
  through 
  the 
  stages 
  preliminary 
  to 
  rooting. 
  While 
  

   no 
  actual 
  roots 
  were 
  secured, 
  the 
  experiments 
  suggest 
  that 
  the 
  rooting 
  

   of 
  hickory 
  cuttings 
  is 
  not 
  beyond 
  the 
  possibility 
  of 
  attainment. 
  

  

  As 
  the 
  basis 
  of 
  an 
  experiment 
  this 
  winter, 
  I 
  suggest 
  that 
  you 
  select 
  

   half 
  a 
  dozen 
  twigs 
  that 
  you 
  are 
  willing 
  to 
  sacrifice 
  on 
  some 
  good 
  variety 
  

   of 
  hickory, 
  and 
  remove 
  a 
  ring 
  of 
  bark 
  at 
  a 
  distance 
  of 
  4 
  to 
  8 
  inches 
  from 
  

   the 
  top. 
  The 
  ring 
  of 
  bark 
  removed 
  should 
  be 
  about 
  half 
  an 
  inch 
  in 
  

   length 
  and 
  its 
  upper 
  end 
  should 
  come 
  about 
  a 
  quarter 
  of 
  an 
  inch 
  below 
  

   a 
  bud. 
  At 
  the 
  present 
  season 
  the 
  bark 
  will 
  not 
  peel 
  from 
  the 
  wood. 
  It 
  

   will, 
  therefore, 
  be 
  necessary 
  to 
  scrape 
  it 
  oft', 
  so 
  as 
  to 
  leave 
  nothing 
  but 
  

   the 
  wood 
  on 
  the 
  girdled 
  area. 
  The 
  bark 
  should 
  be 
  cleanly 
  cut 
  at 
  each 
  

   end 
  of 
  this 
  area. 
  I 
  hope 
  that 
  we 
  shall 
  still 
  have 
  sufficient 
  warm 
  weather 
  

   to 
  induce 
  the 
  formation 
  of 
  a 
  callus 
  on 
  the 
  cambium 
  at 
  the 
  upper 
  end 
  of 
  

   this 
  ring. 
  

  

  Later 
  in 
  the 
  winter, 
  some 
  time 
  in 
  January, 
  you 
  can 
  cut 
  off 
  these 
  

  

  