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Hayes and Garber - Cucurbit Breeding

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CLASSIFICATION AND INHERITANCE OF SMALL GRAINS 107<br />

These plants are wheat-like in spike <strong>and</strong> seed characters, yet<br />

they resemble rye in some other characters. They are now being<br />

tested for winter hardiness.<br />

FIG. 25. Spikes from four F 4 plants of a wheat-rye cross. Spike No. 39 is<br />

much like rye in regard to the awn development <strong>and</strong> ciliated glumes. Other<br />

heads resemble wheat more than rye. (After Love.)<br />

BUCKWHEAT 1<br />

Buckwheat belongs to the buckwheat family (Poiygonacece).<br />

The original home of this plant was probably Asia, whence it was<br />

introduced into Europe through Tartary <strong>and</strong> Russia in the middle<br />

ages. The generic name of buckwheat, Fagopyrum, comes from<br />

the Latin, fagus, beech, <strong>and</strong> the Greek, puros, wheat, based on<br />

the fact that the seed of buckwheat resembles the beechnut.<br />

The three species of economic importance are F. emarginatum,<br />

F. tataricum, <strong>and</strong> F. esculentum. The forms commonly grown<br />

in the United States belong to the last-named species. Classification<br />

is based on such characters as size, color, <strong>and</strong> shape of<br />

seed; color of growing stem; average height of plant; shape of<br />

leaf; <strong>and</strong> flower characters. The flowers of buckwheat are<br />

dimorphic, i.e., some have long stamens <strong>and</strong> short styles, others<br />

just the reverse. Only one kind of flower is produced on the<br />

1<br />

CARLETONT, 1916.

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