. [Bulletins on forest pathology : from Bulletin , Washington, , 1913-1925]. Trees; Plant diseases. St. 5. tfW/e Healthy and Acid-Injured Pine Seedlings. 7 Fig. l.—Pinus divaricata, healthy seedling. (X 2.) Fig. 2.—P. divaricata, acid injured. (X2.) Probably not capable of recovery. The root growth was stopped before the seedling came up. The entire development of the stem and leaves above ground has taken place since the cessation of root growth. Fig. 3.—P. laricio, acid injured. (X 2.) Injured when so little root had developed that there was no possibility of a resumption of grow
. [Bulletins on forest pathology : from Bulletin , Washington, , 1913-1925]. Trees; Plant diseases. St. 5. tfW/e Healthy and Acid-Injured Pine Seedlings. 7 Fig. l.—Pinus divaricata, healthy seedling. (X 2.) Fig. 2.—P. divaricata, acid injured. (X2.) Probably not capable of recovery. The root growth was stopped before the seedling came up. The entire development of the stem and leaves above ground has taken place since the cessation of root growth. Fig. 3.—P. laricio, acid injured. (X 2.) Injured when so little root had developed that there was no possibility of a resumption of growth. Illustra- tion made 10 days after the killing concentration occurred. Fig. 4.—P. laricio, acid injured. (Xl|.) Recovering by terminal resumption of root growth, as shown by the white root Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington : U. S. Dept. of Agriculture]
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1913
