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Jacques Porcher (Note the fine strong bushy)
Note the fine, strong, bushy growth, and the wonderful way in which the plant holds its foliage. This specimen planted in the spring of 1915-picture taken October, 1916 enjoy trying to introduce a new variety of his own breeding.
Ordinarily to hybridize roses properly one must have a greenhouse and it is astonishing what results may be obtained in a very small one.
In exceptionally dry climates the work may be carried on successfully out-of-doors.
Books on this subject which are interesting and practical are: "The American Rose Annual." "Plant Breeding," L. H. Bailey. "Plant Breeding, Experiments of Nillson and Burbank," De Vries. "Plant Life and Evolution," Campbell. "New Creations in Plant Life," Harwood. "Fundamentals of Plant Breeding," Coulter.
In Chapter X will be found a few hints on hybridization.