Researchers Checking for Bud Burst in Douglas-fir (IMAGE)

USDA Forest Service - Research and Development

Researchers Checking for Bud Burst in Douglas-fir

Caption

Winter temperatures and length of exposure influence the timing of spring bud burst for Douglas-fir. Here, US Forest Service researchers check Douglas-fir seedlings for bud burst.

Credit

Connie Harrington, US Forest Service

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