Figure 2. Tomato shoots showing effect of 2,3,5-triiodobenzoic acid (TIB). 

 A. Tomato stems to show effect of applying 5 mg. of TIB in 50 ml. of water 

 to soil of a four-inch pot on June 5. Photograph was taken July 17. Left, 

 control stem with normal flower cluster; middle, axillary flower cluster with 

 an abnormally long heavy peduncle; right, two axillary flower clusters, one 

 with an abnormally large flower and long peduncles, and the other with a 

 short peduncle and unorganized yellowish flower tissue at the tip. B. Three 

 tomato shoots. Left, control with a normal flower cluster and axillary leafy 

 shoot; middle, one large flower cluster having also two leaves and long peduncle 

 with several node-like structures; right, axillary flower cluster developed from 

 vegetative tissue. The flower cluster has also a few leaves. The flowers are 

 abnormally large and peduncle abnormally long. 



