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Effect of Shade of Photosynthesis and Dry Weight Distribution in Yellow Birch (Betula Alleghaniensis Britton) Seedlings
Author(s) -
Gordon John C.
Publication year - 1969
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1933714
Subject(s) - dry weight , yellow birch , photosynthesis , shading , biology , botany , growing season , dry season , horticulture , betulaceae , agronomy , ecology , hardwood , art , visual arts
Yellow birch seedlings were grown under heavy (86%) shade, moderate (72%) shade, and full sun. Shaded seedlings grew more in height and leaf area, but those in full sun accumulated more dry weight. Shaded seedlings were also more efficient photosynthetically near the end of the growing season than unshaded seedlings. Percentage dry weight was greater in leaves and stems of shaded seedlings and greater in roots of unshaded seedlings.