How to Grow Tobacco

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 Post subject: Premature Blooming
PostPosted: Sat Mar 18, 2017 6:51 am 
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Joined: Fri Feb 17, 2017 5:01 am
Posts: 12
Part of an Interesting write-up I came across from the University of Kentucky. It seems to contradict a lot of what I have read here about what causes premature flowering. It does NOT appear that age of the plant is a factor, or that extra artificial light in the seedling stage triggers flowering when transplanted. It does appear that temperature (air and soil), lack of nutrients, stresses, the LACK of light, or decreasing light, triggers the plant to flower. It also explains the difference between early blooming and premature blooming.



P&SS FACT SHEET TOB-3-05
Premature and Early Bloom in Tobacco
By Gary Palmer
Occasionally tobacco producers will report cases of
tobacco blooming shortly after transplanting.
There are two separate situations
that may cause tobacco to bloom prior to the normal time. The
first is premature bloom where a tobacco plant wi
ll start to bloom at approximately 3 to 6 weeks
after transplanting. The plant will develop abnor
mal leaves that are strappy in appearance and
resemble sucker growth more than normal plant
growth. The other situa
tion is early bloom, where
a plant produces normal leaves but blooms with a
lower leaf number than
normal and often earlier
than expected.
There are many theories why tobacco might be prone
to bloom prematurely. One thought is that
the plant is old enough to bloom. For example, if
it has been in the float system for a long time, it
may be time for it to bloom. This is an incorr
ect assessment of the situation. A county agent in
Kentucky demonstrated this principle one year by
starting some tobacco seeds in December as a
trial run prior to the normal seedbed season. By
May he had plants that were yellowed, woody and
certainly old. He wondered what would happen if he
set these plants alongside some that were of
normal age and compared the response. At normal
bloom stage he could not tell old plants from
normal plants. When tobacco is transplanted, the cl
ock is reset to some extent. However, there can
be environmental situations that can
influence the plant’s normal cycle.


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