Journal Article

Flower induction treatments have no effects on seed traits and transmission of alleles in <i>Picea glauca</i>

J. Beaulieu, M. Deslauriers and G. Daoust

in Tree Physiology

Volume 18, issue 12, pages 817-821
Published in print December 1998 | ISSN: 0829-318X
Published online December 1998 | e-ISSN: 1758-4469 | DOI: http://dx.doi.org/10.1093/treephys/18.12.817
Flower induction treatments have no effects on seed traits and transmission of alleles in Picea glauca

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Flower induction methods—hormone application or exposure to physiological stress, or both—are used routinely for shortening breeding cycles and increasing seed production in white spruce (Picea glauca (Moench) Voss). The objectives of this study were: (1) to evaluate the effects of flower induction on seed yield and quality in white spruce; and (2) to determine if flower induction treatments affect the maternal contribution to offspring. We assessed the effects of flower induction treatments, which consisted of gibberellin A4/7 (GA4/7) and naphthaleneacetic acid (NAA) stem injections, on allele segregation for 28 clones, number of seeds per cone, number of sound seeds per cone, seed weight, and the germination rate of a subset of clones. Flower induction treatments did not affect any of the phenotypic traits examined. No increase in segregation distortion in allozyme loci following flower induction treatments was observed.

Keywords: breeding cycle; gibberellic acid; maternal effect; seed production; white spruce

Journal Article.  0 words. 

Subjects: Plant Sciences and Forestry

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