. Annual report of the Cornell University Agricultural Experiment Station, Ithaca, Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Varieties of Roots. 133 at the expense of the food already stored in the stem and root and reduce the feeding vahie of the root, hence plants showing these characters should never be kept for breeding purposes. The stem or hypocotyl. This part of the mangel is rich in nutrients. It varies in length in different varieties. In some varieties it is above ground, in others, as in the Kleinwanzlebener sugar-beet, it is below gr
. Annual report of the Cornell University Agricultural Experiment Station, Ithaca, Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Varieties of Roots. 133 at the expense of the food already stored in the stem and root and reduce the feeding vahie of the root, hence plants showing these characters should never be kept for breeding purposes. The stem or hypocotyl. This part of the mangel is rich in nutrients. It varies in length in different varieties. In some varieties it is above ground, in others, as in the Kleinwanzlebener sugar-beet, it is below ground. It is an observed fact that those plants having a large part of the hypocotyl below ground are richer in sugar and of better feeding value than those having a large part above ground. Roots rare- ly arise and grow from the hypocotyl. The primary root ap- pears as a continuation of the hypocotyl. It should terminate in a single small tap root, when the root may be said to be smooth; secondary roots, prongs or forks are undesirable, not only because of increasing the cost of harvesting, but because they indicate that the plant is of a coarse and fibrous nature, and the amount of soil they hold renders the roots undesir- able food for stock. Such roots are described as forked or rough in contra- distinction to Fig. 44.—Kleinwanzlebener. One of the best sugar- beets, although itjgrows well into the ground and is expensive to harvest. Six-inch squares. The primary root is characterized by two depressions running length- wise down the root, and opposite to each other; these are known as the dimples. They should be vertical and not too deep. In some cases three dimples may be seen. The lateral roots spring from the dimples; they should be fine, fibrous and fairly abundant, and their origin confined to this area, as when they spring promiscuously from the surface they render the root more difficult to harvest and carry much more soil into the root cellar. The fibrous r
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