Genotype by environment interaction

Genetic potential of common bean progenies selected for crude fiber content obtained through different breeding methods

V. A. P. Júnior, Melo, P. G. S., Pereira, H. S., Bassinello, P. Z., and Melo, L. C., “Genetic potential of common bean progenies selected for crude fiber content obtained through different breeding methods”, vol. 14, pp. 5763-5774, 2015.

Gastrointestinal health is of great importance due to the increasing consumption of functional foods, especially those concern­ing diets rich in fiber content. The common bean has been valorized as a nutritious food due to its appreciable fiber content and the fact that it is consumed in many countries. The current study aimed to evalu­ate and compare the genetic potential of common bean progenies of the carioca group, developed through different breeding methods, for crude fiber content.

Genotype by environment interaction for post-weaning weight gain, scrotal circumference, and muscling score of composite beef cattle in different regions of Brazil

M. L. Santana, Jr., Eler, J. P., Cardoso, F. F., Albuquerque, L. G., Balieiro, J. C. C., Pereira, R. J., and Ferraz, J. B. S., “Genotype by environment interaction for post-weaning weight gain, scrotal circumference, and muscling score of composite beef cattle in different regions of Brazil”, vol. 13, pp. 3048-3059, 2014.

The objectives of this study were to characterize and define homogenous production environments of composite beef cattle in Brazil in terms of climatic and geographic variables by using multivariate exploratory techniques; to evaluate the presence of genotype by environment interaction (GxE) for post-weaning weight gain (PWG), yearling scrotal circumference (SC), and yearling muscling (MUS). Hierarchical and nonhierarchical cluster analysis was used to group farms located in regions with similar environmental variables into clusters. Six clusters of farms were formed.

Experimental strategies in performing value for cultivation and use experiments for the tobacco crop II: dimension of the experimental network

C. E. Pulcinelli, Bruzi, A. T., Toledo, F. H. R. B., and Ramalho, M. A. P., “Experimental strategies in performing value for cultivation and use experiments for the tobacco crop II: dimension of the experimental network”, vol. 13, pp. 5541-5554, 2014.

In this study, we aimed to establish strategies for value for cultivation and use (VCU) experiments for the tobacco crop in the southern region of Brazil with respect to the number of environments used to assess tobacco lines. Trials of the Virginia (18 sites) and Burley (17 sites) varietal groups were conducted in the three states of the southern region of Brazil in the 2009-2010 crop season.

Genetic control and estimation of genetic parameters for seed-coat darkening of carioca beans

F. C. Silva, Melo, P. G. S., Pereira, H. S., and Melo, L. C., “Genetic control and estimation of genetic parameters for seed-coat darkening of carioca beans”, vol. 13, pp. 6486-6496, 2014.

The maintenance of the light color of the grains of carioca beans is a requirement for the development of new cultivars of common beans because it enables the storage of grains for long periods so that they may be traded at a proper opportunity. Crosses of cultivar BRSMG Madrepérola, which presents slow grain darkening, were made to 10 elite lines presenting normal darkening to obtain information about the genetic control of the trait and estimates of phenotypic and genotypic parameters.

Stability analysis of oil yield in oil palm (Elaeis guineensis) progenies in different environments

M. Y. Rafii, Jalani, B. S., Rajanaidu, N., Kushairi, A., Puteh, A., and Latif, M. A., “Stability analysis of oil yield in oil palm (Elaeis guineensis) progenies in different environments”, vol. 11, pp. 3629-3641, 2012.

We evaluated 38 dura x pisifera (DP) oil palm progenies in four locations in Malaysia for genotype by environment interaction and genotypic stability studies. The DP progenies derived from crosses between pisifera palms of AVROS, Serdang S27B, Serdang 29/36, and Lever Cameroon were chosen to be the males’ parent and Deli dura palms designated as females’ parent. All the locations differed in terms of soil physical and chemical properties, and the soil types ranged from coastal clay to inland soils.

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