. The nursery-book; a complete guide to the multiplication of plants ... Gardening; Plant propagation. THE NURSERY-BOOK. CHAPTER I. SEEDAGE. 1. REQUISITES OF GERMINATION. There are three external requisites to the germination of seeds—moisture, free oxygen, and a definite temperature. These requisites are demanded in different degrees and proportions by seeds of different species, or even by seeds of the same species when differing widely in age or in degree of maturity. The supply of oxygen usually regu- lates itself. It is only necessary that the seeds shall not be planted too deep, that the
. The nursery-book; a complete guide to the multiplication of plants ... Gardening; Plant propagation. THE NURSERY-BOOK. CHAPTER I. SEEDAGE. 1. REQUISITES OF GERMINATION. There are three external requisites to the germination of seeds—moisture, free oxygen, and a definite temperature. These requisites are demanded in different degrees and proportions by seeds of different species, or even by seeds of the same species when differing widely in age or in degree of maturity. The supply of oxygen usually regu- lates itself. It is only necessary that the seeds shall not be planted too deep, that the soil is porous and not overloaded with water. Moisture and temperature, how- ever, must be carefully regulated. Regulation of Moisture.—Moisture is the most important factor in seedage. It is usually ap- plied to the seeds by means of soil or some similar medium, as moss or cocoanut fiber. Fresh and vig- orous seeds endure heavy water- ings, but old and poor seeds must be given very little water. If there is reason to suspect that the seeds are weak, water should not be ap- plied to them directly. A favorite method of handling weak and also /. Double 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 Bailey, L. H. (Liberty Hyde), 1858-1954. New York, The Macmillan Co.
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