. Practical botany. Botany. 420 PRACTICAL BOTANY more than $100,000,000 to the annual value of our com crop. The structure of the grain of corn, as shown by the diagrams in Figs. 333 and 334, is such that the relative amounts of pro- teins, starch, and oil can be esti- mated roughly by a mechanical examination of the grain. This most important fact was discov- ered by Professor C. G. Hopkms, of the University of Illinois. The proteins are largely stored in the horn-like part of the endosperm (Fig. 333, p) and in the embryo; the starch is mainly found in the white, floury part of the endosperm
. Practical botany. Botany. 420 PRACTICAL BOTANY more than $100,000,000 to the annual value of our com crop. The structure of the grain of corn, as shown by the diagrams in Figs. 333 and 334, is such that the relative amounts of pro- teins, starch, and oil can be esti- mated roughly by a mechanical examination of the grain. This most important fact was discov- ered by Professor C. G. Hopkms, of the University of Illinois. The proteins are largely stored in the horn-like part of the endosperm (Fig. 333, p) and in the embryo; the starch is mainly found in the white, floury part of the endosperm (s); and the oil is nearly all in the embryo (e). If seed corn is chosen from ears with kernels in which the horn-like portion is highly developed, the result will be to secure a crop with a large percentage of proteins; seed corn with large embryos will yield a crop rich in oil, and seed corn with small embryos a crop poor in oil. Corn with high proteins is especially valuable as a food for man and the lower animals, since the most serious fault found with corn as a cereal food is its low per- centage of proteins compared with its oil and carbohydrates. Corn with high oil value is especially de- sired by the glucose manufacturers, since they also manu- facture corn oil, which is the highest-priced component of the grain. Corn with a low percentage of oil is in demand for. Fig. 335. Part of a corn tassel (stami- nate flower cluster) 6r,abract; 5<,stamens. One half natural size. 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 Bergen, Joseph Y. (Joseph Young), 1851-1917; Caldwell, Otis William, 1869- joint author. Boston, New York [etc. ] Ginn and company
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