Dr. F. went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Of what significance is this experiment?

The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year by application of

During seed germination its stored food is mobilized by

Vernalization simulates flowering in