Zon, Raphael, 1874-1956, Graves, Henry Solon, 1871-1951 · Washington, D.C. : U.S. Dept. of Agriculture, Forest Service · leaf 34
a (spruce). Pinus austriaca (Austrian pine). Fraxinus (ash). Pinus sylvestris (Scotch pine). Another experiment of this kind was made in Russia by Nikolsky(1881) on three rows of pine (intolerant) and spruce (tolerant) for Jo 70 z J.L-o ^4d Z.L1H 2JLLa £J-±o 1*° 3 2? °„ 3Z4-U 3^-4-U 3 2 * U 3 iio %… … CON I FE/7S(b) AVERAGE DIAMETER OESEEDLINGS AF GROUNDWITH DIFFERENT CONDITIONS OF SHADC Fig. 3.—Results of experiments with shading seedlings. the purpose of determining the influence which shade has upon thegrowth of 1-year-old spruce and pine. In this experiment the great-est length of stem (from…
Plants Effect of light on · Trees Growth · Light Effect on trees · Tree growth
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