Download the full-sized PDF of Genetic Parameters for Bud Flushing and Growth Characteristics of White Spruce SeedlingsDownload the full-sized PDF



Permanent link (DOI):


Export to: EndNote  |  Zotero  |  Mendeley


This file is in the following communities:

Renewable Resources, Department of


This file is in the following collections:

Journal Articles (Renewable Resources)

Genetic Parameters for Bud Flushing and Growth Characteristics of White Spruce Seedlings Open Access


Author or creator
Rweyongeza, D.
Yeh, F.
Dhir, N.
Additional contributors
Genetic correlation
Early selection
Bud flushing
Progeny test
Type of item
Journal Article (Published)
We estimated heritabilities and correlations for bud flushing and growth traits of white spruce seedlings, and the correlations of seedling traits with 10- and 11-year height of the same families in the field. The seedling greenhouse experiment had a randomized complete block design with 30 replications, 58 open-pollinated families and single-tree plots. Individual tree heritability (h(i)(2)) was 0.78 and 0.54 for 18 (H18) and 36 (H36)-week total height, respectively. The corresponding heritabilities for family means (h(f)(2)) were 0.91 and 0.82. For root collar diameter, hi2 were respectively, 0.61 and 0.22 at 24 and 54 weeks from germination. The corresponding h(f)(2) were 0.87 and 0.55. Heritability for bud flushing ranged from 0.13 to 0.46 (h(i)(2)) and 0.44 to 0.83 (h(f)(2)). The genetic correlation (r(a)) between H18 and H36 was 0.70 and that of D24 and D54 was 0.89, indicating a substantial change in family ranking in one growing season. The type B genetic correlation for H18 with field heights ranged from 0.22 to 0.30. Type B genetic correlations of field height with all other seedling traits were very low and largely negative. It can be concluded that: (1) age-age correlation of seedling height can be expected to decline drastically even in a stable environment of the greenhouse, (2) heritability for growth potential is meaningful when estimated on cumulative growth not on individual annual growth increments that are susceptible to short-term environmental variation, (3) dates of bud flushing did not influence variation in height and root collar diameter, and (4) field growth potential is better predicted by greenhouse growth potential than other morphological and shoot phenological traits.
Date created
License information
© 2010 JD Sauerlaender's Verlag. This version of this article is open access and can be downloaded and shared. The original author(s) and source must be cited.
Citation for previous publication
Rweyongeza, D., Yeh, F., & Dhir, N. (2010). Genetic Parameters for Bud Flushing and Growth Characteristics of White Spruce Seedlings. Silvae Genetic, 59(4), 151-158.
Link to related item

File Details

Date Uploaded
Date Modified
Audit Status
Audits have not yet been run on this file.
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 109356
Last modified: 2015:10:12 15:46:38-06:00
Filename: SG_59_2010_151.pdf
Original checksum: af1184fe725cf5abf2339a31cfc02085
Well formed: true
Valid: true
File title: Ausgabe 55/2
File title: Ausgabe 55/2
File author: Andreas
Page count: 8
Activity of users you follow
User Activity Date