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 foliage with large 



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 IV. 



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 



