14 
BULLETIN 623, U. S. DEPARTMENT OF AGRICULTURE. 
DESCRIPTIONS OF SOME OF THE IMPORTANT STRAINS. 
WASHINGTON STRAIN. 
• 
The trees of the Washington strain, illustrated in figures 3 and 4 
before and after the crop was picked, are productive and tend to 
bear regular and successive crops of fruit. They have an open 
and somewhat drooping habit of growth and dense f oh age with large 
P73IA-HP 
Fig. 3. — A typical Washington strain orange tree of the Washington Navel variety located in one of the 
investigational performance-record plats. Note the white cloth streamers used to mark the tree. This 
tree after the crop was picked is shown in figure 4. The performance record of this tree for four seasons is 
given in rank 82 in Table TV. 
dark-green leaves. The trees of this strain produce but few suckers, 
i. e., branches showing abnormally vigorous vegetative growth in 
contrast with the large amount of such growth produced by trees 
of some other strains of the Washington Navel orange. Fruit varia- 
tions are less commonly found in the trees of this strain than in the 
