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USFS Logo Research Data Archive

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One row of seedlings placed on a rack to measure the rooth penetration in the test tubes. The tubes were tilted 30 degrees from vertical when in the boxes so that roots would grow against the side of the tubes facing the observer. Study 1203.21
more info/bigger image
Collection: Fort Valley Experimental Forest historical photographs
Keywords: seedling
Location: Fort Valley Exp. Forest; AZ; USA
Description: One row of seedlings placed on a rack to measure the rooth penetration in the test tubes. The tubes were tilted 30 degrees from vertical when in the boxes so that roots would grow against the side of the tubes facing the observer. Study 1203.21
Date: 1966

Same as La-71 except pencil put in picture for scale. Seedling is 3 inches high from log
more info/bigger image
Collection: Fort Valley Experimental Forest historical photographs
Keywords: seedling
Location: Coulter Ranch (S5); AZ; USA
Description: Same as La-71 except pencil put in picture for scale. Seedling is 3 inches high from log
Date: 09/15/1959