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Growth of tree seedlings as affected by light intensity. IV. Black Spruce, White Spruce, Balsam Fir, and Eastern White Cedar


, : Growth of tree seedlings as affected by light intensity. IV. Black Spruce, White Spruce, Balsam Fir, and Eastern White Cedar. Publ. For. Serv. Can, 1256, 12

cf. FA 28 No. 5227.) Seedlings of Picea mariana, P. glauca, Abies balsamea and Thuja occidentalis were grown in 13, 25, 45 and 100% of full daylight. After 4 years, oven-dry weight of shoots and roots of some seedlings of each species were determined, and after 9 years the remaining seedlings were assessed in terms of height, number of needles, root-collar diameter, and oven-dry weight of foliage, branch, main stem and total shoot.

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