Bui. 1477, U. S. Dept. of Agriculture 
Plate 32 
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1 
Growth, Spur Development, and Bearing Habits of the President 
Plum in Relation to Pruning and to Soil and Other Conditions 
A.— Slender 1-year-old twigs, showing fruiting tendency. If the leaf-bearing portion of the 
twig is removed the entire twig will die after the fruit ripens. A vigorous growth is 
needed by trees of this variety, as few spurs form on slender branches 
B. — Several 9-year-old President plum grafts top-worked on peach and growing in fertile irri- 
gated land. The new shoots have been heavily headed back each winter. Note the 
spurlike twigs which grow at right angles to the large shoots during their first season. 
(Compare with C) 
C. — A 9-year-old tree which has been headed back in pruning and is growing in fertile irri- 
gated soil. Note the spurlike twigs which were produced by this branch during its first 
season's growth. (Compare with B and pi. 31, C) 
