. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. k }K-t. 1 2 Figs. 1-3. â The world's three most important food grains (magnified): 1, sec- tion of a rice grain ; a, cuticle ; b, aleurone, or protein layer ; c, starch cells ; d, germ ; 2, section of a wheat grain ; k, germ ; s, starch; a, gluten ; t, t, t, layers of the seed coat; 3, section of a grain of corn ; c, husk; e, aleurone layer containing proteins; eg, yellowish, horny endosperm, containing proteins and starch ; ew, lighter starchy endosperm : the darker part
. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. k }K-t. 1 2 Figs. 1-3. â The world's three most important food grains (magnified): 1, sec- tion of a rice grain ; a, cuticle ; b, aleurone, or protein layer ; c, starch cells ; d, germ ; 2, section of a wheat grain ; k, germ ; s, starch; a, gluten ; t, t, t, layers of the seed coat; 3, section of a grain of corn ; c, husk; e, aleurone layer containing proteins; eg, yellowish, horny endosperm, containing proteins and starch ; ew, lighter starchy endosperm : the darker part below is rich in oil and proteins, and contains the em- bryo, consisting of the absorbing organ, or cotyledon, sc; the rudimentary bud, s ; and the root, w. (1, from Circular 77, La. Exp. Station ; 2, from France ; 3, from Sachs.) 2. Why food is stored in seeds. â The one purpose for which plants produce their seed is to give rise to a new generation and so carry on the life of the species. The seed is the nursery, so to speak, in which the germ destined to produce a new plant is sheltered until it is ready to begin an inde- pendent existence. But the young plant, like the young animal, is incapable of providing for itself at first, and would die unless it re- ceived nourishment from the mother plant until Figs. 4-7. â Sections of corn grains showing ., â , f , , , different qualities of food contents: 4, S, small ll tias lOrmed TOOtS and germ and large proportion of horny part, show- leaves SO that it Can ing high protein; 6,7, large germ and smaller pro- portion of horny part, showing high oil content, manufacture food for. 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 Andrews, Eliza Frances, b. 1840; Lloyd, Francis Ernest, 1868-1947. ed. New York, Cincinnati [etc. ] American book company
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Keywords: ., bookauthorand, bookcentury1900, bookdecade1910, booksubjectbotany
