1. Method of monitoring gibberellin and abscisic acid synthesis during barley milling

2. Because the root participates significantly in the biosynthesis of gibberellin, the acropetal transport of gibberellin from this organ in an intact plant is probably connected with the attractive force of auxin activated in the shoot apex.

3. Younger P. glauca grafts that were not root-pruned or sprayed with gibberellin A4/7 failed to respond to early drought and late heat treatments, but did so the following year when these adjunct treatments were given.