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Evaluation of several selection procedures for predicting yield performance of progenies in two populations of cotton (Gossypium barbadense L.)

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Abstract

Average, combined and specific indices involving lint yield and its components “seeds per boll” and “lint per seed” were computed for two populations of cotton (Gossypium barbadense) evaluated in two seasons. All indices were constructed to maximize advance in “lint yield”. Indices were evaluated as to their usefulness in identifying high yielding genotypes.

Within the limits of this experiment it was shown that:

  1. 1.

    Specific indices were superior to yield as criteria for selection in both predicted and actual gains.

  2. 2.

    Average indices were more reliable than specific indices in their prediction of yield advance, suggesting that the gain in precision more than offset the bias introduced by non-specifity of indices.

  3. 3.

    The increased efficiency of combined specific indices over specific indices for the data of one season suggested that further improvements in indices, as procedures for selection, could accure from separating the genotype by environment component from the genotypic component.

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Authors and Affiliations

  1. Agricultural Research Division, Wad Medani, Sudan

    Mohamed A. Siddig

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  1. Mohamed A. Siddig
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Siddig, M.A. Evaluation of several selection procedures for predicting yield performance of progenies in two populations of cotton (Gossypium barbadense L.). Euphytica 16, 377–384 (1967). https://doi.org/10.1007/BF00028946

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  • DOI: https://doi.org/10.1007/BF00028946

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