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Combination Capacity and Association Among Traits of Grain Yield in Wheat (Triticum aestivum L.): A Review

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Listed:
  • Alexsander Rigatti
  • Alan Pelegrin
  • Carine Meier
  • Andrei Lunkes
  • Luís Klein
  • Alisson Silva
  • Eduardo Bellé
  • Antonio Silva
  • Volmir Marchioro
  • Velci Souza

Abstract

Grain yield is a complex quantitative trait, because its expression is associated to the large number of genes with small effect. In addition, there is interaction among different yield components and environment effect, making difficult the direct selection of genotypes. The most viable alternative for wheat breeding programs, an autogamous plant, is use artificial crosses in order to obtain superior genotypes. Hybridization after use of successive self-fertilizations results in segregating populations, which reveal the genetic variability, especially when the parents are genetically different. Therefore, it is important to know genetic relationships between crosses, which will serve as reference for decision making in the choice of combinations. Therefore, general combining ability (GCA) and specific combining ability (SCA) are used, which facilitate choice of the best parents to compose crossover block. In addition to these parameters, path analysis can be used to determine importance of primary and secondary traits and to guide indirect selection of promising genotypes by means of interest traits.

Suggested Citation

  • Alexsander Rigatti & Alan Pelegrin & Carine Meier & Andrei Lunkes & Luís Klein & Alisson Silva & Eduardo Bellé & Antonio Silva & Volmir Marchioro & Velci Souza, 2018. "Combination Capacity and Association Among Traits of Grain Yield in Wheat (Triticum aestivum L.): A Review," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 10(5), pages 179-179, April.
    • Handle: RePEc:ibn:jasjnl:v:10:y:2018:i:5:p:179
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    References listed on IDEAS

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    1. Nano Daba, 2017. "Influence of Nitrogen Fertilizer Application on Grain Yield, Nitrogen Uptake Efficiency, and Nitrogen Use Efficiency of Bread Wheat (Triticum aestivum L.) Cultivars in Eastern Ethiopia," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 9(7), pages 202-202, June.
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      JEL classification:

      • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
      • Z0 - Other Special Topics - - General

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