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Home → Publications → Tree Improvement and Genetics → Southern Forest Tree Improvement Conference → 17th Southern Forest Tree Improvement Conference (1983) → Estimation Of Gain In Form, Quality And Volumetric Traits Of American Sycamore In Response To The Selection For Tree Dry Weight

Estimation Of Gain In Form, Quality And Volumetric Traits Of American Sycamore In Response To The Selection For Tree Dry Weight

The genetic relationship of tree dry weight to form, quality and volumetric traits of American sycamore (Platanus occidentalis L.) was obtained from 1080 open-pollinated eight-year-old trees measured for DBH, height, straightness and crown score and from 233 trees measured for tree dry weight, specific gravity and moisture content. Tree dry weight is positively correlated with taller (r G = 0.94), larger (r G = 0.99), straighter trees and with better crown configuration, lower moisture content and higher specific gravity. Selection for tree dry weight is estimated to improve tree dry weight 23.9 percent from roguing first generation seed orchards and 42.9 percent from establishing second generation seed orchards. Selection pressure should be placed on total height to achieve optimum amounts of gain for tree dry weight in combination with other desirable traits.


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Author(s): Barbara G. McCutchan

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1983