DOI: 10.1016/j.foreco.2013.05.015
Scopus记录号: 2-s2.0-84878681755
论文题名: Effect of genotype by spacing interaction on radiata pine genetic parameters for height and diameter growth
作者: Lin Y. ; Yang H. ; Ivković M. ; Gapare W.J. ; Colin Matheson A. ; Wu H.X.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 304 起始页码: 204
结束页码: 211
语种: 英语
英文关键词: Genotype
; Genotype by spacing interaction
; Heritability
; Pinus radiata
; Spacing
Scopus关键词: Genotype
; Genotype by spacing interaction
; Heritability
; Pinus radiata
; Spacing
; Ecology
; Forestry
; age class
; coniferous forest
; diameter
; genotype-environment interaction
; growth rate
; height determination
; heritability
; mortality
; plantation forestry
; productivity
; spacing
; survival
; tree ring
; Ecology
; Forestry
; Pinus Radiata
; Spacing
; Pinus radiata
; Radiata
英文摘要: Effect of genotype by spacing interaction on radiata pine (Pinus radiata D. Don) height and diameter at breast height (DBH) growth was studied using three spacings (1 × 1 m, 1 × 2 m and 2 × 3 m) and 55 half-sib families in a long-term progeny trial. Examined were the effect of spacing and family on early tree height and diameter growth up to 10 years, and on annual ring width (RW) and accumulated DBH of the surviving trees up to age 28 years. The effects of spacing on heritability, and age-age genetic correlations were also studied using multiple-year measurements. Spacing had little or limited impact on tree height growth, but a highly significant effect on diameter growth. Spacing also had no significant effect on heritability for tree height, but a very significant effect on the patterns and values of heritability for diameter and DBH growth. Closer spacing was found to depress heritability estimates for DBH. Spacing was also observed to have a significant impact on age-age genetic correlation, and the higher competition level at closer spacing treatment distorted the age-age genetic correlation patterns for DBH due to higher mortality. The spacing effect on heritability was more apparent from early growth measurements due to relatively small mortality compared with the late age measurements. Our current study for the first time revealed significant and useful genotype by spacing interactions in radiata pine for DBH growth. The significant genotype by spacing interactions were mainly caused by a few well-performing families reacting more to spacing changes. Therefore, matching genotype with spacing has the potential to increase productivity of radiata pine plantations. © 2013 . Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66482
Appears in Collections: 影响、适应和脆弱性
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作者单位: College of Forestry, South China Agricultural University, Guangzhou 510642, China; CSIRO Plant Industry, Po Box 1600, Canberra, ACT 2601, Australia; UPSC, Swedish University of Agriculture Sciences, Umeå SE-901 83, Sweden
Recommended Citation:
Lin Y.,Yang H.,Ivković M.,et al. Effect of genotype by spacing interaction on radiata pine genetic parameters for height and diameter growth[J]. Forest Ecology and Management,2013-01-01,304