Chemical Control of Plant Growth.

Seven experiments are presented in this Science Study Aid to help students investigate the control of plant growth with chemicals. Plant growth regulators, weed control, and chemical pruning are the topics studied in the experiments which are based on investigations that have been and are being conducted at the U. S. Agricultural Research Center, Maryland. Each activity outlines introductory information, objectives, materials required, procedure to follow, results and/or observations, and interpretation of the findings. In addition, precautionary notes regarding the use of chemicals and a vocabulary list are given. The study aid is not intended to be a complete teaching unit, rather, a supplement to a regular program providing up-to-date, research related activities. (BL)