. Elements of agriculture, southern and western. Agriculture; Agriculture. 68 ELEMENTS OF AGRICULTURE. Fig. 18. — Flower of the Apple To show the pressure of the flow of sap, cut a small grapevine and fit a rubber tube over it and put a glass tube in the other end of the rubber tube. The pressure will raise water in the glass tube many feet high. Fertilization of Plants. — Plants, in order to make seed, have flowers. A perfect flower has stamens producing a little yellow powder called pollen, and a pistil containing the little seed. In order to become fertile and make good seed, some of the po
. Elements of agriculture, southern and western. Agriculture; Agriculture. 68 ELEMENTS OF AGRICULTURE. Fig. 18. — Flower of the Apple To show the pressure of the flow of sap, cut a small grapevine and fit a rubber tube over it and put a glass tube in the other end of the rubber tube. The pressure will raise water in the glass tube many feet high. Fertilization of Plants. — Plants, in order to make seed, have flowers. A perfect flower has stamens producing a little yellow powder called pollen, and a pistil containing the little seed. In order to become fertile and make good seed, some of the pollen must reach the little seed. See Figure 19 for the names of the different parts of the flower. One part of the corn flower is represented by the shoot and silks, the other part by the tassel. As is well known, no grain is made unless the pollen of the tassel falls on the silk of the corn. The ears of corn fill much better in a large field than where there are only a few stalks. In the latter case, the pollen is blown off and does not reach the silks. Corn of different varieties will sometimes mix even when the fields are some distance apart; this is. 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 Welborn, W. C; Ness, H; Sanborn, Charles Emerson, 1877-; Marstellar, R. P. New York, The Macmillan company
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