6 BULLETIN 1361, U. S. DEPARTMENT OF AGRICULTURE 
Fig. 4. — Harvest Queen wheat plants from experiment No. 3:4, Healthy 
uninoeulated ; B, C, D, rosette following inoculation with juice and tissue 
from mosaic-infested Currell wheat plants. A has three tillers ; B, C, 
and D have four, seven, and six tillers, respectively 
