Repeatability

Number of repetitions for evaluating technological traits in cotton genotypes

L. P. Carvalho, Farias, F. J. C., Morello, C. L., Rodrigues, J. I. S., Teodoro, P. E., Carvalho, L. P., Farias, F. J. C., Morello, C. L., Rodrigues, J. I. S., and Teodoro, P. E., Number of repetitions for evaluating technological traits in cotton genotypes, vol. 15, p. -, 2016.

With the changes in spinning technology, technological cotton traits, such as fiber length, fiber uniformity, fiber strength, fineness, fiber maturity, percentage of fibers, and short fiber index, are of great importance for selecting cotton genotypes. However, for accurate discrimination of genotypes, it is important that these traits are evaluated with the best possible accuracy. The aim of this study was to determine the number of measurements (repetitions) needed to accurately assess technological traits of cotton genotypes.

Phenotypic correlations between ovum pick-up in vitro production traits and pregnancy rates in Zebu cows

W. H. O. Vega, Quirino, C. R., Serapião, R. V., Oliveira, C. S., and Pacheco, A., Phenotypic correlations between ovum pick-up in vitro production traits and pregnancy rates in Zebu cows, vol. 14, pp. 7335-7343, 2015.

The growth of the Gyr breed in Brazil in terms of genetic gain for milk, along with conditions for market, has led to the use of ovum pick-up in vitro production (OPU-IVP) as a leader in biotechnology for the multiplication of genetic material. The aim of this study was to investigate phenotypic correlations between OPU-IVP-linked characteristics and pregnancy rates registered in an embryo transfer program using Gyr cows as oocyte donors.

Potential of hypocotyl diameter in family selection aiming at plant architecture improvement of common bean

A. M. C. Oliveira, Batista, R. O., Carneiro, P. C. S., Carneiro, J. E. S., and Cruz, C. D., Potential of hypocotyl diameter in family selection aiming at plant architecture improvement of common bean, vol. 14, pp. 11515-11523, 2015.

Cultivars of common bean with more erect plant architecture and greater tolerance to degree of lodging are required by producers. Thus, to evaluate the potential of hypocotyl diameter (HD) in family selection for plant architecture improvement of common bean, the HDs of 32 F2 plants were measured in 3 distinct populations, and the characteristics related to plant architecture were analyzed in their progenies.

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