. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 4 BULLETII^ 962, U, S. DEPARTMENT OF AGRICULTURE. urally in the field, but a much better set can always be obtained by thorough artificial pollination. SELFED COMPARED WITH CROSSED PROGENIES. In the recent investigations made by the Bureau of Plant Industry no attempt was made to obtain excessive ^'igor in the stocks Fig. 1.—Pollinating the Piaster lily. The parts of the flower arc so large that even the conventional tweezers are dispensed with. Some years ago Mr. George W. Oliver, working on this subject und
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 4 BULLETII^ 962, U, S. DEPARTMENT OF AGRICULTURE. urally in the field, but a much better set can always be obtained by thorough artificial pollination. SELFED COMPARED WITH CROSSED PROGENIES. In the recent investigations made by the Bureau of Plant Industry no attempt was made to obtain excessive ^'igor in the stocks Fig. 1.—Pollinating the Piaster lily. The parts of the flower arc so large that even the conventional tweezers are dispensed with. Some years ago Mr. George W. Oliver, working on this subject under departmental auspices, developed some remarkably vigorous prog- enies by crossing the two commercial strains, Harrisii and Gigan- teum.^ Other investigators have obtained similar results by crossing 1 Oliver, George W. The production of Easter lily bulbs in the United States. U. S. Dept. Agr., Bur. Plant Indus. Bui. 120, 24 pp., 4 pis. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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