. Introduction to botany. Botany. 26 Introduction to Botany. which the seed may be lying in the soil, or of the time or place of its Fig. 9. Seedlings of Indian corn, beans, and peas grown in moist sawdust in a pan 17 inches in diameter, which was kept revolving at the rate of 185 revolutions per minute. The seeds were planted beneath the surface, and the seedlings have been uncovered for the photograph. 14. Roots the First to Grow.—It has been noticed that the root first grows out and becomes established in close con- nection with the soil before the other parts of the embryo em
. Introduction to botany. Botany. 26 Introduction to Botany. which the seed may be lying in the soil, or of the time or place of its Fig. 9. Seedlings of Indian corn, beans, and peas grown in moist sawdust in a pan 17 inches in diameter, which was kept revolving at the rate of 185 revolutions per minute. The seeds were planted beneath the surface, and the seedlings have been uncovered for the photograph. 14. Roots the First to Grow.—It has been noticed that the root first grows out and becomes established in close con- nection with the soil before the other parts of the embryo emerge above the surface. This insures that the seedling may not easily be dislodged from its position, and that the parts which are soon to be exposed to the drying influence of sun and winds may continually be supplied with water from the soil. If a seedling is removed with care from a sandy loam, the soil will be found adhering to the roots in large, loose masses, and when the soil is carefully washed away in water, it will be seen to have been bound together by means of numerous fine hairs growing from the roots. It. 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 Stevens, William Chase, 1861-. Boston, D. C. Heath & Co.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1902
