Genotype x environment interaction

Relationships between methods of variety adaptability and stability in sugarcane

T. O. Mendes de Paula, Marinho, C. D., Souza, V., Barbosa, M. H. P., Peternelli, L. A., Kimbeng, C. A., and Zhou, M. M., “Relationships between methods of variety adaptability and stability in sugarcane”, vol. 13, pp. 4216-4225, 2014.

The identification and recommendation of superior genotypes is crucial for the growth of industrial crops, and sugarcane breeding performs a vital role by developing more productive cultivars. The study of genotype x environment interaction has been an essential tool in this process. Thereby, the purpose of this study was to investigate the relationship between methods of adaptability and stability in sugarcane. Data were collected from trials using a randomized block design with three repetitions and 15 clones of sugarcane in nine environments in the State of Minas Gerais, Brazil.

Adaptability and stability analysis of the juice yield of yellow passion fruit varieties

E. J. Oliveira, Freitas, J. P. X., and Jesus, O. N., “Adaptability and stability analysis of the juice yield of yellow passion fruit varieties”, vol. 13, pp. 6512-6527, 2014.

This study analyzed the genotype x environment interaction (GE) for the juice productivity (JuProd) of 12 yellow passion fruit varieties (Passiflora edulis Sims. f. flavicarpa Deg.) using additive main effects and multiplicative interaction (AMMI) model and auxiliary parameters. The experiments were conducted in eight environments of Bahia State, Brazil, using a randomized block design with three replications. Analysis of variance showed significant effects (P ≤ 0.01) for environments, genotypes, and GE interaction.

Genetic variability for iron and zinc content in common bean lines and interaction with water availability

H. S. Pereira, Del Peloso, M. J., Bassinello, P. Z., Guimarães, C. M., Melo, L. C., and Faria, L. C., “Genetic variability for iron and zinc content in common bean lines and interaction with water availability”, vol. 13, pp. 6773-6785, 2014.

The common bean is an important source of iron and zinc in humans. Increases in the contents of these minerals can combat mineral deficiencies, but these contents are influenced by environmental conditions. Thus, the objectives of this study were to investigate the interaction between common bean lines and water availability on iron and zinc contents (CFe and CZn, respectively), identify superior lines with stable CFe and CZn, and test for a genetic relationship between CFe and CZn. Six crop trials were performed using a randomized block design with three replications.

Stability and adaptability of grain sorghum hybrids in the off-season

J. E. Almeida Filho, Tardin, F. D., Daher, R. F., Barbé, T. C., Paula, C. M., Cardoso, M. J., and Godinho, V. P. C., “Stability and adaptability of grain sorghum hybrids in the off-season”, vol. 13, pp. 7626-7635, 2014.

We analyzed productivity data obtained from experiments on grain sorghum conducted in 7 locations of its cultivation in Brazil. A total of 25 hybrids were analyzed, of which 22 were pre-commercial and 3 were cultivars. The Wricke and Purchase et al. methods were highly consistent in identifying individuals with low contributions to genotype x environment interactions. The Lin and Binns method proved to be easily applicable and interpretable but it was not efficient in detecting individuals with specific adaptations.

Snap bean recommendation based on different methods of phenotypic stability

C. D. Marinho, Gravina, G. A., Araújo, L. C., Almeida, S. N. C., Júnior, A. T. Amaral, Daher, R. F., and Gonçalves, L. S. A., “Snap bean recommendation based on different methods of phenotypic stability”, vol. 12. pp. 248-255, 2013.

In order to recommend the best strains of snap beans from the Universidade Estadual do Norte Fluminense (UENF) breeding program, different methods of analysis of phenotypic stability were adopted to evaluate the performance of 14 lines (F9 and F10) of indeterminate growth habit, which were compared with 3 controls, namely, 2 commercial varieties (Feltrin and Top Seed Blue Line) and 1 parent (UENF-1445). The experiments were conducted in Bom Jesus do Itabapoana in 2010 and 2011, and in Cambuci in 2011.

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