Environment and genotype-environment interaction in maize breeding in Paraná, Brazil

Júnior, Fonsêca; Vencovsky, Roland; Koehler, Henrique Soares

doi:10.12702/1984-7033.v08n01a03

Cited by 5 publications

(5 citation statements)

References 10 publications

(11 reference statements)

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“…The sum of squares of the line by site interaction was 2.1 times greater than the sum of squares of lines, showing the importance of the interaction in the tobacco crop for that region. The occurrence of this interaction has frequently been reported in other crops in the same region (Terasawa Jr. et al, 2008;Bertoldo et al 2009;Pereira et al 2009). The first proof of the existence of the interaction may be observed as the source of variation among lines within each site.…”

Section: Resultsmentioning

confidence: 51%

“…Because of this interaction, the lines behave differently in the different sites. This is a known fact for most crops (Pacheco et al, 2003;Terasawa Jr. et al, 2008;Bertoldo et al, 2009;Pereira et al, 2009). The tobacco crop is no different.…”

Section: Introductionmentioning

confidence: 98%

“…If an excessive number of sites is used, the efficiency of the breeding program will diminish because the cost of each trial is normally high. With other crops grown in Brazil, numerous studies expressed a view toward ecological zoning (Pacheco et al, 2003;Terasawa Jr. et al, 2008;Bertoldo et al, 2009;Pereira et al, 2009). These studies, however, have a different focus from that presented here.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2014

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ABSTRACT. 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. The experiment was conducted in a completely randomized block design with four replications of 10 tobacco lines in the final stage of evaluation; the plots had 6 rows of 7 plants each, or 42 plants per plot. The cured leaf weight per hectare (kg/ha) was obtained. To evaluate stability, the ecovalence and additive main effects and multiplicative interaction models were adopted. In addition, joint analyses of variance were carried out considering different site numbers by simulating resampling. The site number ranged from 2 to 17 or 2 to 16, depending on the varietal group, and sites were selected at random without replacement. The process was repeated 2000 times for each number of sites. All analyses were performed using the R software. The results are very similar for both varietal groups. There is no advantage of using a large number of sites for VCU experiments in the southern region of Brazil because many sites contributed little to the interaction or did not discriminate the tobacco lines. Furthermore, the classification of the best lines is very similar to that obtained in the total number of evaluated sites.

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Section: Resultsmentioning

confidence: 51%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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

et al. 2014

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“…Maize F1 hybrids and their parental inbred lines and check genotypes revealed significant differences for grain yield at different locations. Other studies also authenticated that significant differences were observed among maize genotype, environment and GEI for grain yield . For maize grain yield, environment, genotype and GEI made a significant contribution to the total variation in yield .…”

Section: Discussionmentioning

confidence: 70%

“…Other studies also authenticated that significant differences were observed among maize genotype, environment and GEI for grain yield. 15,34 For maize grain yield, environment, genotype and GEI made a significant contribution to the total variation in yield. 21 On average, F 1 hybrid FRHW-1 × SWAJK-1 and check genotype P30K08 were noted with high yield.…”

Section: Discussionmentioning

confidence: 99%

Environment effects for earliness and grain yield traits in F₁ diallel populations of maize (Zea mays L.)

et al. 2017

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Exploring genotype × environment interaction in Robusta coffee for growth and yield stability under tropical environments

Akpertey

Anim-Kwapong

Adu-Gyamfi

et al. 2022

J. Crop Sci. Biotechnol.

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Environment and genotype-environment interaction in maize breeding in Paraná, Brazil

Cited by 5 publications

References 10 publications

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

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

Environment effects for earliness and grain yield traits in F₁ diallel populations of maize (Zea mays L.)

Exploring genotype × environment interaction in Robusta coffee for growth and yield stability under tropical environments

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Environment and genotype-environment interaction in maize breeding in Paraná, Brazil

Cited by 5 publications

References 10 publications

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

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

Environment effects for earliness and grain yield traits in F1 diallel populations of maize (Zea mays L.)

Exploring genotype × environment interaction in Robusta coffee for growth and yield stability under tropical environments

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Product

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Environment effects for earliness and grain yield traits in F₁ diallel populations of maize (Zea mays L.)