[Market-farming] Seedling growth vs temps

Beth Spaugh lists at rhomestead.com
Thu Jan 10 11:10:41 EST 2008


I have been told/read that it may be more economical to grow transplants at
higher temps for less time. I don't have a temperature chart, and only found
a few accessible articles in a Google search, but I'm sure there must be
information out there documenting it. 

I haven't figured out the appropriate key phrase for Google. I did find
this:
http://www.hrt.msu.edu/Energy/Notebook/pdf/Sec2/Temperature_Effects_on_Flori
culture_Crops_by_Runkle.pdf

And this, both flowers
http://www.hrt.msu.edu/Energy/Notebook/pdf/Sec2/Manage_Temperatures_for_the_
best_spring_crops_by_Runkle.pdf

OK, here is more usable and eye-opening info, though still on flowers:
http://www.greenhouse.cornell.edu/cropcult/factsheets/SchedulingHeat.pdf

I did a quick search and got this article on flower bedding plants:
http://www.gpnmag.com/Temperature-and-Light-on-Bedding-Plants-article4259

And one on tomatoes: http://www.imok.ufl.edu/veghort/docs/height_121302.pdf

I have notes that say that if SOME varieties of tomatoes are exposed to
night temps less than 50 in their first week, (but not freezing), they will
flower sooner and their internodes will be shorter. My notes say not to try
this with Trust tomato though.And with some varieties this will result in
cosmetic problems on the first few fruits.

Beth Spaugh
Rehoboth Homestead
Peru NY
http://rhomestead.com

"How we eat determines, to a considerable extent, how the world is used."  -
Wendell Berry

"Without power over our food, any notion of democracy is empty." - Francis
Moore Lappe





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