A common garden experiment examining light use efficiency and heat sum to explain growth differences in native and exotic Pinus taeda

Simple item page
dc.contributor.authorAlbaugh, Timothy J.en
dc.contributor.authorFox, Thomas R.en
dc.contributor.authorMaier, Christopher A.en
dc.contributor.authorCampoe, Otavio C.en
dc.contributor.authorRubilar, Rafael A.en
dc.contributor.authorCook, Rachel L.en
dc.contributor.authorRaymond, Jay E.en
dc.contributor.authorAlvares, Clayton A.en
dc.contributor.authorStape, Jose L.en
dc.contributor.departmentForest Resources and Environmental Conservationen
dc.date.accessioned2020-03-10T13:52:56Zen
dc.date.available2020-03-10T13:52:56Zen
dc.date.issued2018-10-01en
dc.description.abstractPrevious work indicates that Pinus taeda L. grows faster and has a higher carrying capacity when grown outside its native range. We were interested in examining the hypotheses that growth, light use efficiency (volume growth and absorbed photosynthetically active radiation relationship, LUE) and volume growth per unit heat sum is the same for native and exotic plantations. To test these hypotheses, we installed a common garden experiment where the same six genetic entries of P. taeda (four clonal varieties, one open pollinated family and one control mass pollinated family) were planted at three densities (618, 1235, and 1853 stems ha(-1)) with three or four replications at three sites (Virginia (VA), and North Carolina (NC) in the United States and Parana State in Brazil (BR)). The VA and BR sites were outside the native range of P. taeda. After five years of growth, the BR site had larger trees and stand scale basal area and volume were increasing faster than the other sites. Site did not affect LUE but density and genetic entry did. The sites were at different latitudes but the average photosynthetically active radiation at the top of the canopy was similar for the years when all sites were operational, likely because the BR site receives more rain annually and the cloudiness associated with the rain may have reduced available light. We estimated an hourly heat sum where the daytime temperature was between 5 and 38 degrees C, hours where vapor pressure deficit exceeded 1.5 kPa and days following nights where nighttime temperatures were less than 0 degrees C were excluded. Site was significant for the cumulative volume and heat sum relationship, for a given level of cumulative degree hours the sites ranked BR > VA > NC in cumulative volume. The different growth per unit of degree hours for each site indicated that something other than the heat sum was causing the observed difference in growth. Other factors including respiration and extreme climatic conditions may contribute to growth differences per unit degree hour and including these differences in the analysis would require a more detailed modeling effort to examine. The sites used in this study are ideally suited to continue testing additional hypotheses to explain the different growth between native and exotic P. taeda plantations because they have the same genotypes at all sites and consequently eliminate differences in genetics as a potential explanation for observed growth differences.en
dc.description.adminPublic domain – authored by a U.S. government employeeen
dc.description.notesWe appreciate support from the Forest Productivity Cooperative and members for their role in the establishment and management of the trials central to this publication. We gratefully acknowledge the support provided by the National Science Foundation Center for Advanced Forest Systems, the Department of Forest Resources and Environmental Conservation at Virginia Polytechnic Institute and State University, the Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepcion, the Department of Forestry and Environmental Resources at North Carolina State University and the Federal University of Santa Catarina. Funding for this work was provided in part by the Virginia Agricultural Experiment Station and the McIntire-Stennis Program of the National Institute of Food and Agriculture, U.S. Department of Agriculture. The use of trade names in this paper does not imply endorsement by the associated agencies of the products named nor criticism of similar ones not mentioned. We are grateful for Arborgen for supplying the genetic material, for the assistance of K. Peer and C. Sawyer at The Reynolds Homestead, H.C. Rohr at the North Carolina Forest Service's Bladen Lakes State Forest and the personnel at Valor Florestal in the installation and ongoing maintenance of the study sites.en
dc.description.sponsorshipNational Science Foundation Center for Advanced Forest Systems; Department of Forest Resources and Environmental Conservation at Virginia Polytechnic Institute and State University; Departamento de Silvicultura, Facultad de Ciencias Forestales, Universidad de Concepcion; Department of Forestry and Environmental Resources at North Carolina State University; Federal University of Santa Catarina; Virginia Agricultural Experiment Station; McIntire-Stennis Program of the National Institute of Food and Agriculture, U.S. Department of Agriculture; Forest Productivity Cooperativeen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1016/j.foreco.2018.05.033en
dc.identifier.eissn1872-7042en
dc.identifier.issn0378-1127en
dc.identifier.urihttp://hdl.handle.net/10919/97284en
dc.identifier.volume425en
dc.language.isoenen
dc.rightsCreative Commons CC0 1.0 Universal Public Domain Dedicationen
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/en
dc.subjectAbsorbed lighten
dc.subjectDensityen
dc.subjectGenotypeen
dc.subjectNatural rangeen
dc.subjectVapor pressure deficiten
dc.titleA common garden experiment examining light use efficiency and heat sum to explain growth differences in native and exotic Pinus taedaen
dc.title.serialForest Ecology and Managementen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1-s2.0-S0378112718304389-main.pdf
Size:
558.54 KB
Format:
Adobe Portable Document Format
Description:
Download

Collections

Scholarly Works, Forest Resources and Environmental Conservation