Temporal stability of vigor in rubber tree genotypes in the pre- and post-tapping phases using different methods

Gouvêa, Lígia Regina Lima; Silva, Guilherme Augusto Peres; Verardi, Cecília Khusala; Silva, Juliano Quarteroli; Scaloppi, Erivaldo José; Gonçalves, Paulo de Souza

doi:10.1007/s10681-012-0688-y

Cited by 17 publications

(14 citation statements)

References 25 publications

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“…This could be partially explained by the different principles that are used to estimate the stability parameters. Similar results were found for temporal stability of vigor 6 in rubber by Gouvêa et al [26] and for wheat yield by Mohammadi and Amri [27]. High values of the Finlay-…”

Section: Discussionsupporting

confidence: 84%

Genotype-Environment Interaction and Stability of Fiber Properties and Growth Traits in Triploid Hybrid Clones of Populus Tomentosa

Zhou

Sang

et al. 2020

Preprint

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Background: Clones provide a sensitive method for evaluating genotypic stability and detecting genotype-environment (G × E) interactions because of non-additive genetic effects among clones and no genetic effect among ramets of an ortet. The experiments aimed at confirming and expanding the earlier findings, estimating stability parameters, and providing accurate estimates of clonal repeatabilities and genetic gains for an triploid breeding programme of Populus tomentosa Carr. Results: Six 5-year-old clonal trials established in Northern China were used to determine the clonal variation, clone × site interactions and the stability parameters of fiber properties of wood and growth traits. Three hundred sixty trees from ten hybrid clones were collected in the six sites. The clonal and site effects had a highly significant effect (P < 0.001) for all studied traits. The clone × site interactions had a highly significant effect (P < 0.001) on fiber length (FL), coarseness (C), and tree growth (tree height [H], diameter at breast height [DBH] and stem volume [SV]), and a moderate effect (P < 0.05) on fiber width (FW) and fiber length/width (FL/W). For FL and SV, most of the triploid hybrid clones had higher reaction norms to the improvement in growth conditions and higher phenotypic plasticity. The estimated clonal repeatability of FW (0.93) was slightly higher than for FL (0.89), FL/W (0.83), C (0.91), DBH (0.76), H (0.85), and SV (0.80). Three clonal testing sites were sufficient to estimate quantitative parameters of fiber properties. However, more than three clonal testing sites will help improve the accuracy of quantitative parameters of growth traits.Conclusions: Our results unraveled that accurate estimation of quantitative parameters for growth traits in triploid hybrid clones of Populus tomentosa required more clonal testing sites than fiber properties.

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Section: Discussionsupporting

confidence: 84%

Genotype-Environment Interaction and Stability of Fiber Properties and Growth Traits in Triploid Hybrid Clones of Populus Tomentosa

Zhou

Sang

et al. 2020

Preprint

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“…Highly significant rank correlation was found among 2 S di , i W and AMMI stability values in chickpea, 83 durum wheat, 84,85 pea, 56,57 and rubber tree. 86 Also positive correlations were found between AMMI and other stability parameters such as 2 i σ 56 and i P . 86 b) The biplot technique named 'GGE biplot' was developed by Yan et al, 87 to represent genotype main effects and G E × interaction graphically.…”

Section: Multivariate Approaches For Stability Analysismentioning

confidence: 85%

“…86 Also positive correlations were found between AMMI and other stability parameters such as 2 i σ 56 and i P . 86 b) The biplot technique named 'GGE biplot' was developed by Yan et al, 87 to represent genotype main effects and G E × interaction graphically. Although biplot analysis is not sensitive to the number of genotypes but it is the best predictor of genotype stability for a small number of genotypes.…”

Section: Multivariate Approaches For Stability Analysismentioning

confidence: 85%

An Overview on the Use of Stability Parameters in Plant Breeding

Fasahat¹

2015

BBIJ

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The phenotype of an individual depends upon both the genetic make-up and environmental influences. Genotype × environment interaction is considered as an important source of discrepancy in any crop, and different methods have been used to distinguish genotypes for their behavior in different environmental conditions. These constitute univariate parametric, such as environmental variance, regression slope, and deviation from regression, to multivariate methods. In this review, we summarize the priorities and limitations of different parametric stability statistics, and also their correlations which might help agronomists and crop breeders to choose the proper methods for their analysis.

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“…Higher values were reported by Gonçalves et al (2004b) and Gouvêa et al (2012). The relative variation index (CVr) showed very high values, greater than 1.0 in some cases, indicating high genetic variability for the evaluated variables, in all the years and locations.…”

Section: Resultsmentioning

confidence: 84%

Genetic parameters and estimated genetic gains in young rubber tree progenies

Verardi

Scaloppi

Silva

et al. 2013

Pesq. agropec. bras.

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-The objective of this work was to assess the genetic parameters and to estimate genetic gains in young rubber tree progenies. The experiments were carried out during three years, in a randomized block design, with six replicates and ten plants per plot, in three representative Hevea crop regions of the state of São Paulo, Brazil. Twenty-two progenies were evaluated, from three to five years old, for rubber yield and annual girth growth. Genetic gain was estimated with the multi-effect index (MEI). Selection by progenies means provided greater estimated genetic gain than selection based on individuals, since heritability values of progeny means were greater than the ones of individual heritability, for both evaluated variables, in all the assessment years. The selection of the three best progenies for rubber yield provided a selection gain of 1.28 g per plant.The genetic gains estimated with MEI using data from early assessments (from 3 to 5-year-old) were generally high for annual girth growth and rubber yield. The high genetic gains for annual girth growth in the first year of assessment indicate that progenies can be selected at the beginning of the breeding program. Population effective size was consistent with the three progenies selected, showing that they were not related and that the population genetic variability is ensured. Early selection with the genetic gains estimated by MEI can be made on rubber tree progenies.Index terms: Hevea brasiliensis, annual girth growth, early selection, effective population size, multi-effect index, rubber yield. Parâmetros genéticos e ganhos de seleção estimados em progênies jovens de seringueiraResumo -O objetivo deste trabalho foi avaliar os parâmetros genéticos e estimar ganhos genéticos em progênies jovens de seringueira. Os experimentos foram realizados durante três anos, em delineamento de blocos ao acaso, com seis repetições e dez plantas por parcela, em três regiões representativas da heveicultura paulista. Vinte e duas progênies foram avaliadas, dos três aos cinco anos de idade, quanto à produção de borracha e incremento anual do caule. O ganho genético foi estimado com o índice multiefeitos (IME). A seleção pela média das progênies proporcionou maior ganho genético do que a seleção baseada em indivíduos, já que os valores de herdabilidade das médias de progênies foram maiores do que os da herdabilidade individual, para ambas as variáveis, em todos os anos de avaliação. A seleção das três melhores progênies quanto à produção de borracha proporcionou um ganho de seleção de 1,28 g por planta. Os ganhos genéticos estimados pelo IME com dados das primeiras avaliações (dos 3 aos 5 anos) foram altos em geral, para produção de borracha e incremento anual do caule. Os elevados ganhos genéticos obtidos para incremento anual no primeiro ano de avaliação indicam que as progênies podem ser selecionadas no início do programa de melhoramento. O tamanho efetivo da população foi condizente com as três progênies selecionadas e mostrou que elas não são aparentadas e que...

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Temporal stability of vigor in rubber tree genotypes in the pre- and post-tapping phases using different methods

Cited by 17 publications

References 25 publications

Genotype-Environment Interaction and Stability of Fiber Properties and Growth Traits in Triploid Hybrid Clones of Populus Tomentosa

Genotype-Environment Interaction and Stability of Fiber Properties and Growth Traits in Triploid Hybrid Clones of Populus Tomentosa

An Overview on the Use of Stability Parameters in Plant Breeding

Genetic parameters and estimated genetic gains in young rubber tree progenies

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Temporal stability of vigor in rubber tree genotypes in the pre- and post-tapping phases using different methods

Cited by 17 publications

References 25 publications

Genotype-Environment Interaction and Stability&nbsp;of&nbsp;Fiber Properties and Growth Traits&nbsp;in&nbsp;Triploid Hybrid Clones of&nbsp;Populus Tomentosa

Genotype-Environment Interaction and Stability&nbsp;of&nbsp;Fiber Properties and Growth Traits&nbsp;in&nbsp;Triploid Hybrid Clones of&nbsp;Populus Tomentosa

An Overview on the Use of Stability Parameters in Plant Breeding

Genetic parameters and estimated genetic gains in young rubber tree progenies

Contact Info

Product

Resources

About

Genotype-Environment Interaction and Stability of Fiber Properties and Growth Traits in Triploid Hybrid Clones of Populus Tomentosa

Genotype-Environment Interaction and Stability of Fiber Properties and Growth Traits in Triploid Hybrid Clones of Populus Tomentosa