PLATE 1 
A. —An ideal Pima cotton plant grown at Sacaton, Ariz. Note the upright 
habit, scarcity of vegetative branches, scant leaf covering and long prolific fruit¬ 
ing branches, which make this variety well adapted to the irrigated regions. 
B. —Typical Hartsville cotton plant grown under irrigation conditions in the 
Southwest. Note the stiff upright habit of central stalk and vegetative 
branches. These are recognized as advantages under irrigation conditions. 
C. —Defoliated Durango cotton plant grown under irrigated conditions in the 
Southwest. Note the stiff upright habit of central stalk and vegetative 
branches. 
D. —Defoliated Acala cotton plant grown under irrigation conditions. 
(954) 
