III.Conclusion
Cotton
looks like a bush with flowers of yellow color. Variable leaves of
the plant have elongated petioles, mostly 3-5-lobed. In the flower
there are corollas with intergrowth, wide petals, cups with five
prongs, which surround a wrapper with three blades, the length of
which is longer than that of a calyx. The fruit is a box. In some
plants it is oval, while in others it is round. Inside are seeds that
cover cotton in the form of a cannon. Cotton hairs can be fleecy and
short, or fluffy and long. Seeds can have both two kinds of hairs,
and only long ones.
If
the species is wild, then the seeds of such plants do not have long
hairs.
This
plant has a rooted root system, the root is immersed to a great depth
in the earth - from 30 cm. Some varieties have roots that go to the
ground for a length of 3 meters.
The
chemical composition of the plant has been thoroughly studied. The
main product that is obtained from it is fiber. It includes proteins,
wax, fat, pectins and pure cellulose.
The
composition of cotton seeds includes fatty oil, fytin, protein,
phosphatides, sterols, starch, color pigments, gossypol and vitamins:
B6, B2, thiamine, folic acid, provitamin A, E.
The
leaves of the plant include tannins, organic acids, flavonoids,
pigments, pectins, sterols, and also polyhydric alcohol.
Literature
Cotton
// Encyclopaedic dictionary of Brockhaus and Efron: 86 t. (82 t. And
4 ext.). - St. Petersburg, 1890-1907.
Cotton
// The Great Soviet Encyclopedia: [in 30 t.] / Ch. Ed. A. M.
Prokhorov. - 3rd ed. - M.: Soviet Encyclopedia, 1969-1978.
