Skip to Main Content
Heritability and genetic correlations for volume, foxtails, and other characteristics of Caribbean pine in Puerto RicoAuthor(s): F. Thomas Ledig; J.L. Whitmore
Source: Silvae Genetica 30:86-94
Publication Series: Miscellaneous Publication
PDF: Download Publication (1.4 MB)
DescriptionCaribbean pine is an important exotic being bred throughout the tropics, but published estimates are lacking for heritability of economically important traits and the genetic correlations between them. Based on a Puerto Rican trial of 16 open-pollinated parents of var. hondurensis selected in Belize, heritabilities for a number of characteristics ranged from 0.04 to 0.53. Volume had a moderate heritability of 0.11 while bark thickness had a high heritability of 0.53. These values are similar to those for southern pines, and indicate the potential for substantial gains from selection of individuals within Puerto Rican plantations. Family variation within provenance for foxtail growth form, a subject of much speculation, was tested and found to be 0.17, a value indicating that selection against foxtails could also be effective. Phenotypic correlations between traits were weak, but additive genetic correlations appeared stronger, so selection for one characteristic must consider correlated responses for others.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationLedig, F. Thomas; Whitmore, J.L. 1981. Heritability and genetic correlations for volume, foxtails, and other characteristics of Caribbean pine in Puerto Rico. Silvae Genetica 30:86-94
KeywordsPinus caribaea, progeny tests, bark thickness, stem form, branching characteristics
- Examining maternal effects and genetic differentiation in P. flexilis and P. aristata to improve success of conservation actions
- Interspecific pine hybrids II. genotype by environment interactions across Australia, Swaziland, and Zimbabwe
- The future of high-elevation, five-needle white pines in Western North America: Proceedings of the High Five Symposium
XML: View XML