. Botany for agricultural students . Botany. JL B Fig. 44. — Surface view of an ovule at two stages of development. A, stage of development showing the integuments (a, 6) growing up over the nucellus (n). B, older stage in which the integuments have closed over the nucellus, leaving only a small opening, the micropyle (m). s, the funiculus. Much enlarged.. Fig. 45. — Section through the ovule of Red Clover show- ing the embryo sac. em, em- bryo sac with the egg (e) and the primary endosperm nucleus (en) indicated; i, integuments; TO, micropyle. Many times enlarged. come seed. How much could th
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. Botany for agricultural students . Botany. JL B Fig. 44. — Surface view of an ovule at two stages of development. A, stage of development showing the integuments (a, 6) growing up over the nucellus (n). B, older stage in which the integuments have closed over the nucellus, leaving only a small opening, the micropyle (m). s, the funiculus. Much enlarged.. Fig. 45. — Section through the ovule of Red Clover show- ing the embryo sac. em, em- bryo sac with the egg (e) and the primary endosperm nucleus (en) indicated; i, integuments; TO, micropyle. Many times enlarged. come seed. How much could the seed yield of Clover and Alfalfa be increased if they could be made to develop all of their ovules into seed? If clover seed were selling at $10 per bushel, what would be the value of the increased yield on ten acres of average Clover? Parts of the Ovule. — The ovule consists of a main body and a stalk known as the funiculus which connects to the ovary wall. The main body consists of a central (usually rounded) portion called nucellus, which is enclosed by one or more coverings called integuments that grow up from the funiculus. In Figure 40, showing the ovules of Clover, the stalk or funiculus is at st; the central portion or nucellus of the main body is at n; the coverings or integuments of the nucellus are at i. Turn to this Figure and point out these parts. In the ovule of the Corn, shown in Figure 41, the funiculus is apparently absent. In Figure 44 is shown a. 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 work.. Martin, John N. (John Nathan), b. 1875. New York : John Wiley & Sons, Inc.