Uso da metodologia REML/BLUP para seleção de genótipos de algodoeiro com maior adaptabilidade e estabilidade produtiva

Carvalho, Luiz Paulo de; Farias, F. J. C.; Morello, Camilo de Lellis; Teodoro, Paulo Eduardo

doi:10.1590/1678-4499.275

Cited by 30 publications

(39 citation statements)

References 11 publications

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“…The F test revealed a significant relationship (p < 0.05) between cotton genotypes for all agronomic (Table 1) and technological (Table 2) traits, which allowed for the inference of existing genetic variability between genotypes (Table 1). The coefficient of variation was inferior to 20% of all the evaluated traits, as it was similar to those obtained in published papers studying cotton (Freitas, Leandro, & Carvalho, 2007;Araújo et al, 2013;Jerônimo et al, 2014;Carvalho et al, 2015a, Carvalho, Farias, Morello, Rodrigues, & Teodoro, 2015bCarvalho, Farias, Morello, & Teodoro, 2016a, Carvalho, Farias, Morello, & Teodoro, 2016bQueiroz et al, 2017a;Santos et al, 2017). No significant G x E interaction was observed for the evaluated traits, which indicates similar phenotypic performance for the traits in these three environments.…”

Section: Joint Analysis Of Variancesupporting

confidence: 88%

<b>Interrelations between agronomic and technological fiber traits in upland cotton

et al. 2018

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Fiber length stands out among technological traits as one that still needs to be improved in cotton. Thus, the objectives of this work were to quantify the interrelations between agronomic and technological fiber traits and to identify traits that could be used for the indirect selection of cotton genotypes with longer fiber lengths. Agronomic and technological traits were evaluated in 36 elite lines of cotton that were cultivated in three environments. Canonical correlations were estimated between two groups of traits: agronomic and technological. Path analysis was performed that considered fiber length as the primary dependent variable. The genotypes presented variability in all the evaluated traits, and no significant genotype vs. environmental interaction was observed for any of them. The main technological traits of cotton crops can be improved by an indirect selection of agronomic traits. The selection of cotton genotypes with a smaller size and a higher mean boll weight can be used to increase fiber length and improve other technological traits. Selection indices containing plant height, mean boll weight, fiber strength, and fiber uniformity can be one of the main strategies for the selection of cotton genotypes with a high yield of cotton bolls and long fibers.

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Section: Joint Analysis Of Variancesupporting

confidence: 88%

<b>Interrelations between agronomic and technological fiber traits in upland cotton

et al. 2018

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“…produces one of the most important textile fiber of the world, and offers various utility products with great relevance in the Brazilian and the world's economy (Carvalho et al 2015a, Menezes et al 2015, Morello et al 2015. However, changes in spinning technology, competition with synthetic fibers, and the globalization of cotton production and textile products increase the demand for higher quality fiber, making the length of fiber one of the main traits to be improved (Smith et al 2008, Carvalho et al 2016.…”

Section: Introductionmentioning

confidence: 99%

“…Studies on G x E interaction in cotton are scarce in Brazil, and in total, these studies evaluate fiber yield, not the length (Suinaga et al 2006, Souza et al 2006, Silva Filho et al 2008, Farias et al 2016.…”

Section: Introductionmentioning

confidence: 99%

Selection of cotton genotypes for greater length of fibers

Carvalho

Farias

Morello

et al. 2016

Crop Breed. Appl. Biotechnol.

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Abstract:In cotton breeding programs, it is necessary to identify genotypes with predictable behavior on the length of fibers, and which are responsive to environmental variations, in specific or broad conditions. The aim of this study was to employ the methodology of mixed models for simultaneous selection of cotton genotypes with greater length of fibers, adaptability and stability. It was evaluated 36 lines in three trials located in Apodi (2013and 2014) and Santa Helena (2013 CNPA 2012-55, CNPA 2012-58, CNPA 2012-62 and CNPA 2012 can be grown in all tested environments, since they gather greater length of fibers, stability and adaptability. in a randomized block design with two replications. Genetic parameters were estimated by the restricted maximum likelihood/best linear unbiased predictor method (REML/BLUP) and the selection was based on the method of harmonic mean of the relative performance of genetic values. The genotypes

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“…The genotypic correlation between performance at the locations (rg loc ) was 0.89. This parameter indicates the similarity in the ranking of genotypes at the tested locations (Carvalho et al 2016). The value obtained indicates no complex interaction between genotypes and locations; i.e., there were 89% and 11% simple and complex interactions, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…The integrated selection (HMRPGV*OM) allows selection considering the HMGV and RPGV*OM methods, i.e., considering the stability, adaptability and productivity means together (Matei et al 2017). Carvalho et al (2016) and Santos et al (2018) reported the efficiency of the HMRPGV method in the simultaneous selection for productivity, stability and adaptability of cotton and bean genotypes, respectively. Thus, selected lines based on this method are essentially productive, are stable in different environments and have the ability to positively respond to environmental stimuli.…”

Section: Resultsmentioning

confidence: 99%

Selection of high-yielding, adapted and stable wheat lines in preliminary trials

Woyann

Zdziarski

Baretta

et al. 2019

Crop Breed. Appl. Biotechnol.

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Experimental design without replication, such as Federer's augmented block design, allows us to determine productivity, adaptability and stability in multi-environment trials. This work aimed to select productive wheat lines with high adaptability and stability in preliminary trials. The grain yield of 140 homozygous wheat lines was measured in 2015 at three locations. The cultivar TBIO Mestre was used as a check. Genetic parameters were evaluated by mixed models, and selection was based on the harmonic mean of the relative performance of the genetic values (HMRPGV) using models 74 (individual analysis) and 75 (joint analysis) of Selegen software. In the joint analysis, 33 wheat lines stood out in terms of productivity, adaptability and stability. These lines have the potential to be evaluated in Value for Cultivation and Use (VCU) trials for future release of new wheat cultivars.

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Uso da metodologia REML/BLUP para seleção de genótipos de algodoeiro com maior adaptabilidade e estabilidade produtiva

Cited by 30 publications

References 11 publications

<b>Interrelations between agronomic and technological fiber traits in upland cotton

<b>Interrelations between agronomic and technological fiber traits in upland cotton

Selection of cotton genotypes for greater length of fibers

Selection of high-yielding, adapted and stable wheat lines in preliminary trials

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