. Southern field crops (exclusive of forage plants). Agriculture. CORN STRUCTURE 85 the fact that most of these nodes bear a shuck or husk, which is only a modified leaf, as will readily be seen by noting that many shucks are tipped with a small leaf-blade (Fig. 34). It is supposed that the shank which now bears the ear was once a long branch, and that shortening of the branches occurred both. Fig. 34.—An Eak of Corn on which Leaf-blades ahe borne on THE Tips of many of the Shucks. by man's selection and by natural selection. For example, those plants with shortest branches would be the ones m
. Southern field crops (exclusive of forage plants). Agriculture. CORN STRUCTURE 85 the fact that most of these nodes bear a shuck or husk, which is only a modified leaf, as will readily be seen by noting that many shucks are tipped with a small leaf-blade (Fig. 34). It is supposed that the shank which now bears the ear was once a long branch, and that shortening of the branches occurred both. Fig. 34.—An Eak of Corn on which Leaf-blades ahe borne on THE Tips of many of the Shucks. by man's selection and by natural selection. For example, those plants with shortest branches would be the ones most likely to propagate their kind in nature, because these branches would less frequently break off before maturing the seed. For the same reason, selection by man would also tend to preserve the plants with shortest 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 Duggar, J. F. (John Frederick), 1868-. New York, The Macmillan company
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Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture
