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Show stems, and works best if the plant parts are crushed. The degree of palatabillty is evidenced by the intensity intensi-ty of light the plant shows forth under the ultraviolet light. Stevens explained that the glow is caused by the intensity of the chemicals thenols and coumarin within with-in the plants. Biologists have also discovered dis-covered that the number of palatable species increase with elevation. "This is possibly due to the fact that there is actually a 12 month grazing season at lower levels. le-vels. Therefore, the palatable pa-latable sagebrush tends to be repeatedly overused which favors the establishment of the unpalatable species," Stevens theorized. Research now involves attempting at-tempting to hybridize those species which are adaptable to various altitudes with the palatable types, to further increase their range. Biologists Biolo-gists are bringing the palatable pala-table types down to the valley for comparison with the other forms. He pointed out that there is use for both forms of sagebrush. "The unpalatable unpalat-able forms can be put along roads or other places where animals should not be, while palatable forms are preferred pre-ferred on heavy used ranges to increase food supply," he suggested. livestock in Utah," said Stevens. Ste-vens. Research at the station has shown that some forms of sagebrush are more palatable palat-able than others. Observation Observa-tion of the more abundant unpalatable sagebrush forms has lead many persons per-sons to conclude that all sagebrush is an undesirable undesir-able plant, noted Stevens. Biologists at the station have set up test plots near Ephraim where they have planted the palatable and unpalatable un-palatable forms side by side In rows. The sagebrush is on deer range, allowing deer use to be observed. Biologists at the station have set up test plots near Ephraim hwere they have planted the palatable and unpalatable un-palatable forms side by side in rows. The sagebrush is on deer winter range, allowing deer use to be observed. ob-served. Biologists have found that some sagebrush forms are well eaten, while t others go untouched, giving undeniable evidence of deer preference and needs. Palatable forms show a large bluish -white band when moistened and examined under un-der longwave ultraviolet light, said Stevens. This experiment can be conducted conduct-ed with leaves, seeds or SAGEBRUSH VALUES TOLD Biologist at the Great Basin Ba-sin Research Center in Ephraim recently" enlightened enlight-ened Division of Wildlife Resources regional game managers, supervisors and administrative personnel regarding sagebrush palatabillty palat-abillty tests that have been conducted jointly by the Division Di-vision and the Intermoun-tain Intermoun-tain Forest and Range Experimental Ex-perimental Station. Division Biologist Richard Stevens noted that sagebrush has for many years been unpopular among range people. It has been found, however, that sagebrush "is probably the mainstay of big game and |