so what ? I don't want to argue with you, everything I have stated comes from research papers that I studied years ago.Here, read up on photoperiodism and get back to me. Here's a quote;
its those research papers which provided the facts for the intro bio\botany courses with cute little summaries. If you don't believe me then please show me with actual experimental data that proves otherwise.
do you realize that the Pr\Pfr phenomenon has been understood for a long time, and that most of the research was done last century for the flower industry ? Think poinsettas and mums and gas lamp lighting.