Strawberries Showing Variation
This picture illustrates the variation that may be shown by fruit growing on vines from the same lot of seed. By selection, each type of berry here shown might have its peculiarities accentuated, and as many new varieties developed. Mr. Burbank is always on the lookout for variation among his plants, and such variation forms the basis of his experiments in selective breeding.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 3 Chapter 1