Bui. 1477, U. S. Dept. of Agriculture 
Plate 24 
Growth and Bearing Habits of the Grand Duke Plum in Relation 
to Pruning and to Soil and Other Conditions 
A.— Fruiting branch of a tree which has been cut back each year. Note that only larger twigs 
have been retained, that fruit is borne mostly at leafless nodes and on leafless spurs on 
twigs, and that no fruit set on the 1-year old shoots. Tree growing in fertile unirri- 
gated soil. (Vacaville, Calif., July, 1923) 
B. — A 10-year-old framework branch of a tree which is growing in deep, fertile, but unirrigated 
soil. The annual cutting back of twigs and larger branches has maintained vigor and 
insured production of large fruit 
