Foliage of the Apricot
The leaves here shown are from one of Mr. Burbank's improved apricots. With the apricot, as with other fruit bearers, Mr. Burbank was able to make selection in the case of seedlings by examination of the foliage and of the buds. Leaves of a rich deep color like those here shown, and fat, well-rounded buds, indicate qualities of tree that will make a good fruit bearer.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 4 Chapter 8