So I guess growing the plants to blooming size and evaluating them, then deciding which ones to grow on further, then growing them in the field for three more years would be a pretty good evaluation of the TC plants.
This article seems to highlight the method used by Wilds may be very common in the daylily industry.
Go all the way down to Propagation, I could not copy and paste.
http://www.caes.uga.edu/extens...
This article indicates how fast TC is growing and gives a pretty good description of the process.
fshs.org/proceedings-o/1976-vol-89/367-368%20(STRODE).pdf
Sorry I could not get the link to work, but copy and past the above in the search box and it seems to work.
So who knows what is tissue culture grown and what is not? Is a plant considered to be tissue culture grown if it is three or four generations down the line? Once a plant has been grown using TC are all the following descendants considered to be TC plants, or can the grower claim to be growing "Field Grown" plants?
