Dry Weight Partitioning and Its Relationship to Productivity in Loblolly Pine Seedlings From Seven Sources
Abstract:Dry weights of leaves, stems, and roots in loblolly pine seedlings from seven diverse geographic origins were determined after one year's growth in a green-house under (a) moist and (b) droughty soil conditions. In the moist soil regime, seedlings from each of the four coastal sources produced significantly more dry weight than seedlings from each of the three continental sources. Under moist conditions, coastal trees also allocated more dry weight to leaves and less to root than trees from two of the three continental sources. Seedlings grown in the dry regime were considerably smaller and generally allocated a greater portion of their dry weight to root and less to stem than trees grown in the moist regime. Furthermore, seedlot differences in total dry weight and dry weight distribution among plant organs were much reduced in the dry regime compared to the moist regime. These patterns of dry weight allocation were correlated with differences in seedling productivity in some, but not all respects. Patterns of relative plant organ growth appear to be one of the factors causing provenance differentiation in growth rate. For. Sci. 33(2):255-267.
Document Type: Journal Article
Affiliations: Associate Professor, School of Forest Resources, University of Georgia, Athens, GA 30602
Publication date: June 1, 1987
More about this publication?
- Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
Forest Science is published bimonthly in February, April, June, August, October, and December.
2015 Impact Factor: 1.702
Ranking: 16 of 66 in forestry
Also published by SAF:
Journal of Forestry
Other SAF Publications
- Submit a Paper
- Membership Information
- Author Guidelines
- Ingenta Connect is not responsible for the content or availability of external websites