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Interrelations between agronomic and technological fiber traits in upland cotton

Acta scientiarum. Agronomy, 2018-01, Vol.40 (1), p.39364-e39364 [Peer Reviewed Journal]

2018. This work is licensed under https://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and conditions, you may use this content in accordance with the terms of the License. ;This work is licensed under a Creative Commons Attribution 4.0 International License. ;ISSN: 1679-9275 ;ISSN: 1807-8621 ;EISSN: 1807-8621 ;DOI: 10.4025/actasciagron.v40i1.39364

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  • Title:
    Interrelations between agronomic and technological fiber traits in upland cotton
  • Author: Teodoro, Paulo Eduardo ; Carvalho, Luiz Paulo de ; Rodrigues, Josiane Isabela Silva ; Farias, Francisco José Correia ; Carneiro, Pedro Crescêncio Souza ; Bhering, Leonardo Lopes
  • Subjects: AGRONOMY ; canonical correlations ; Cotton ; Cotton fibers ; Crop yield ; Dependent variables ; fiber quality ; Fiber strength ; Fibers ; Genotype & phenotype ; Genotypes ; Gossypium hirssutum L.r. latifolium Hutch ; indirect selection ; Long fibers ; path analysis
  • Is Part Of: Acta scientiarum. Agronomy, 2018-01, Vol.40 (1), p.39364-e39364
  • Description: 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.
  • Publisher: Maringa: Editora da Universidade Estadual de Maringá - EDUEM
  • Language: English;Portuguese
  • Identifier: ISSN: 1679-9275
    ISSN: 1807-8621
    EISSN: 1807-8621
    DOI: 10.4025/actasciagron.v40i1.39364
  • Source: SciELO
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
    DOAJ Directory of Open Access Journals
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