Selection of Superior Clones by Stability Analysis of Growth Performance in Populus davidiana Dode at Age 12

Koo, Yeong-Bon; Yeo, Jin-Kie; Woo, Kwan-Soo; Kim, T. S.

doi:10.1515/sg-2007-0015

Cited by 19 publications

(12 citation statements)

References 9 publications

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“…The results were in agreement with Prakash (2006) for grain yield in Cicer aretinum. The present investigation supports the conclusion made by Koo et al (2007), and the adaptability should not only be the criterion for selecting superior genotypes, but also include ample consideration for growth performance and regression coefficient.…”

Section: Discussionsupporting

confidence: 89%

Genotype × environmental interactions for analyzing adaptability and stability in different clones of Dalbergia sissoo Roxb

Kumar

Bhatt

Ravichandran

et al. 2012

Journal of Forestry Research

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In total 36 superior clones of Dalbergia sissoo Roxb., screened from 300 selections conducted in natural and growing range of India and Nepal, were multiplied using single nodal cuttings and established to evaluate genotype×environmental interactions for adaptability and stability at the age of 30 months in three geographical locations in the state of Punjab, India. Clone 124 had maximum adaptability and stability (bi = 1.04) to perform exceedingly well over the locations. Clones 36 and 1 were stable with mean regression coefficient of 0.84 and 1.22, respectively. Nonetheless, clone 41 performed exceedingly well for all the characters to attain maximum population mean, and the performance varied substantially across the locations. Therefore, clone 41 was considered as productive but non-adaptive clone. Though some of the clones were sensitive to sites, 14 clones for height, 16 for collar diameter, 12 for DBH and 7 for volume were relatively un-sensitive with higher regression coefficient. Nonetheless, clone 124 was the most stable with average bi value of 1.04 and productive, which could play an important role in future breeding and commercial deployment of stable and productive planting stock of Dalbergia sissoo.

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Section: Discussionsupporting

confidence: 89%

Genotype × environmental interactions for analyzing adaptability and stability in different clones of Dalbergia sissoo Roxb

Kumar

Bhatt

Ravichandran

et al. 2012

Journal of Forestry Research

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“…For example, YU and PULKKINEN (2003) reported significant clone x site interaction for early growth of 24 hybrid aspen (Populus tremula x Populus tremuloides) clones in Finland. Similarly, significant GxE was detected for volume in Populus davidiana clones in Korea, but stable genotypes were identified which behaved in a predictable manner across sites (KOO et al, 2007). BALTUNIS et al (2008) reported evidence of GxE for height in 3year old clones of Pinus taeda tested in the southeastern United States which they hypothesized it was due to clones changing ranks on high-versus low-fertility sites, but little evidence of GxE for stable carbon isotope discrimination.…”

Section: Resultsmentioning

confidence: 99%

Genetic analysis and clonal stability of two yellow cypress clonal populations in British Columbia

Baltunis¹,

Russell

Niejenhuis

et al. 2013

Silvae Genetica

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Genetic analysis of height and form at age 12 years of 697 yellow cypress (Callitropsis nootkatensis [D. Don] Oerst.) clones tested across seven sites in coastal British Columbia (BC) were explored in populations: Population 1 - No Pedigree and Population 2 - Reconstructed Pedigree. Genetic variances were statistically significant but generally higher σ̂g2was observed for Population 2. Height and form were under low to moderate genetic control as indicated by clonal repeatability and estimates were relatively similar between populations. For example, average Ĥ2in Population 2 was 0.31 for height (range: 0.18-0.45) and 0.22 for form (range: 0.06-0.32). While average Ĥ2in Population 1 was 0.25 for height (range: 0.19-0.35) and 0.18 for form (range: 0.09-0.27). The reconstructed pedigree in Population 2 allowed partitioning the genetic variance (σ̂g2) into component parts of additive (σ̂a2), specific combining ability (σ̂s2), and clone (σ̂c2); however, general lack of structure within the population resulted in variance components to be estimated with little precision for additive and specific combining ability. The majority of genetic variation was associated with clone for both traits. For example, σ̂c2accounted for 57.6% and 62.5% of the total genetic variance for height and form, respectively. Growth and form responses of clones across test environments were relatively stable and overall type-B genetic correlations were in excess of 0.8 for both traits implying clones selected for production populations should respond favorably across the seed planning zone for yellow cypress in coastal BC.

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“…The interaction between genotype and environment (GxE) has been largely studied in plant breeding as a mean of producing new cultivars with stable and superior phenotypes [ 14 ]. GxE of individual traits have been assessed in numerous experiments with annual crops such as wheat [ 15 ], rice [ 16 ], oat [ 17 ] and soybean [ 18 ]; fibres such as cotton [ 19 ]; forest trees: poplar [ 20 ], pine [ 21 ], spruce [ 22 ]. Comparatively, fewer studies have been performed on fruit trees, including apple [ 23 , 15 ], wild cherry [ 24 ], and blueberry [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Plasticity in Vegetative Growth over Contrasted Growing Sites of an F1 Olive Tree Progeny during Its Juvenile Phase

et al. 2015

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Climatic changes impact fruit tree growth and severely limit their production. Investigating the tree ability to cope with environmental variations is thus necessary to adapt breeding and management strategies in order to ensure sustainable production. In this study, we assessed the genetic parameters and genotype by environment interaction (GxE) during the early tree growth. One hundred and twenty olive seedlings derived from the cross ‘Olivière’ x ‘Arbequina’ were examined across two sites with contrasted environments, accounting for ontogenetic trends over three years. Models including the year of growth, branching order, environment, genotype effects, and their interactions were built with variance function and covariance structure of residuals when necessary. After selection of a model, broad sense heritabilities were estimated. Despite strong environmental effect on most traits, no GxE was found. Moreover, the internal structure of traits co-variation was similar in both sites. Ontogenetic growth variation, related to (i) the overall tree form and (ii) the growth and branching habit at growth unit scale, was not altered by the environment. Finally, a moderate to strong genetic control was identified for traits at the whole tree scale and at internode scale. Among all studied traits, the maximal internode length exhibited the highest heritability (H2 = 0.74). Considering the determinant role of this trait in tree architecture and its stability across environments, this study consolidates its relevance for breeding.

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Selection of Superior Clones by Stability Analysis of Growth Performance in Populus davidiana Dode at Age 12

Cited by 19 publications

References 9 publications

Genotype × environmental interactions for analyzing adaptability and stability in different clones of Dalbergia sissoo Roxb

Genotype × environmental interactions for analyzing adaptability and stability in different clones of Dalbergia sissoo Roxb

Genetic analysis and clonal stability of two yellow cypress clonal populations in British Columbia

Plasticity in Vegetative Growth over Contrasted Growing Sites of an F1 Olive Tree Progeny during Its Juvenile Phase

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