. Field crops for the cotton-belt. Agriculture. ORIGIN, CLASSIFICATION, VARIETIES OF CORN 179 that the kernels "turn inside out" when heated, and by the small size of the kernels and ears. There is also an exces- sive proportion of the corneous endosperm, which gives the property of "; An explanation of the property of "popping" lies in the fact that heat causes the explosion of contained moisture, and the endosperm being so dense that the expansion cannot be taken up on the inside,' the endosperm is caused to evert about the embryo and hull, forming a whi
. Field crops for the cotton-belt. Agriculture. ORIGIN, CLASSIFICATION, VARIETIES OF CORN 179 that the kernels "turn inside out" when heated, and by the small size of the kernels and ears. There is also an exces- sive proportion of the corneous endosperm, which gives the property of "; An explanation of the property of "popping" lies in the fact that heat causes the explosion of contained moisture, and the endosperm being so dense that the expansion cannot be taken up on the inside,' the endosperm is caused to evert about the embryo and hull, forming a white fluffy mass. In kernels possessing. Fig. 32.,— An ear of White Pearl pop-corn. ari excess of white endosperm, the moisture in the corneous portion explodes without everting the endosperm. Although many varieties of pop-corn exist they easily fall into two groups, namely, rice pop-corn, "in which the kernels are pointed at the top, and pearl pop-corn, in which the kernels are rounded at the top much as in flint corn. Ears of pop-corn vary in length from IJ/^ or 2 inches in Tom Thumb to 6 or 7 inches in certain varieties of the pearl group. 220. Zea Mays indurata, the flint coms (Fig. 33). — Characterized by the inclosure of the starchy endosperm in a corneous endosperm. This outer arrangement of the hard part of the endosperm prevents denting, although a slight dent is sometimes visible owing to the fact that the layer of corneous endosperm is thin on the' top of the. 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 Morgan, James Oscar. New York, The Macmillan company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
