Growth performance of three eucalyptus (Eucalyptus deglupta × E. pellita) hybrids on half-sib progeny trial in Northern Mindanao, Philippines.

Issue Date

1-2013

Abstract

Half-sib progeny trial as one essential aspect of Forest Tree Improvement to produce quality planting materials is limited in the Philippines. Using three F1 hybrid parents and 74 surviving F2 half-sib progenies of Eucalyptus deglupta × E. pellita hybrids, the economically important traits such as percent survival, total height, diameter at breast height and volume were evaluated. Comparison of the means using T-test analysis detected nonsignificant differences between border and inside trees. Outcome of the analysis of variance revealed that the three F2 half-sib progenies perform poorly due to the occurrence of inbreeding depression (ID), as reflected in a non-significant variation within and among the families in all phenotypic traits used, except in Total Height and Volume. Correlations indicated that future selection using either of the traits studied, particularly those with the highest value except for PS, can result in better volume harvest. Ranking analysis proved the superiority of EDP1F2. It was followed by EDP3F2 then EDP2F2. Results suggested that while ID negates the phenotypic superiority of Eucalyptus hybrids, application of appropriate silvicultural practices can correct its adverse effect.

Source or Periodical Title

Sylvatrop: the technical journal of Philippine Ecosystems and Natural Resources

ISSN

0115-0022

Volume

23

Issue

1-2

Page

55-74

Document Type

Article

Frequency

semi-annually

Physical Description

illustrations ; tables; maps

Language

English

En – AGROVOC descriptors

EUCALYPTUS DEGLUPTA; EUCALYPTUS PELLITA; EUCALYPTUS; INBREEDING; HYBRIDS; PROGENY TESTING; PHILIPPINES

This document is currently not available here.

Share

COinS