R.L. Hamawaki
Genetic parameters and selection of soybean lines based on selection indexes
Defining selection criteria is important to obtain promising genotypes in a breeding program. The objective of this study was to estimate genetic parameters for agronomic traits and to perform soybean line selection using selection indices. The experiment was conducted at an experimental area located at Capim Branco farm, belonging to the Federal University of Uberl.. Read More»
Genet. Mol. Res. 16(3): gmr16039750
DOI: 10.4238/gmr16039750
Correlations between traits in soybean (Glycine max L.) naturally infected with Asian rust (Phakopsora pachyrhizi)
Soybean (Glycine max L.)-breeding programs aim to develop cultivars with high grain yields and high tolerance to Asian soybean rust (Phakopsora pachyrhizi). Considering that the traits targeted for breeding are mainly quantitative in nature, knowledge of associations between traits allows the breeder to formulate indirect selection strategies. In this study, we investigated phenotypic, genotypi.. Read More»
Genet. Mol. Res. 14(4): 2015.December.21.45
DOI: 10.4238/2015.December.21.45
Selection for wide adaptability and high phenotypic stability of Brazilian soybean genotypes
Advances in genetic enhancement techniques have led to an increase in soybean production. Thus, soybean is currently one the most economically important cultured species worldwide. The objectives of the present study were to study the interaction of soybean genotypes per environment in terms of grain productivity and to evaluate their phenotypic adaptability and stability, with the final aim of.. Read More»
Genet. Mol. Res. 15(1): gmr.15017843
DOI: 10.4238/gmr.15017843
Adaptability and stability of soybean genotypes in off-season cultivation
The oil and protein contents of soybean grains are important quantitative traits for use in breeding. However, few breeding programs perform selection based on these traits in different environments. This study assessed the adaptability and stability of 14 elite early soybean breeding lines in off-season cultivation with respect to yield, and oil and protein contents. A range of statistical met.. Read More»
Genet. Mol. Res. 14(3): 2015.August.14.26
DOI: 10.4238/2015.August.14.26
Analysis of the genetic divergence of soybean lines through hierarchical and Tocher optimization methods
This study aimed to evaluate the clustering pattern consistency of soybean (Glycine max) lines, using seven different clustering methods. Our aim was to evaluate the best method for the identification of promising genotypes to obtain segregating populations. We used 51 generations F5 and F6 soybean lines originating from different hybridizations and backcrosses obta.. Read More»
Genet. Mol. Res. 15(4): gmr.15048836
DOI: 10.4238/gmr.15048836
Selecting soybean resistant to the cyst nematode Heterodera glycines using simple sequence repeat (microssatellite) markers
The soybean cyst nematode (SCN) is a major cause of soybean yield reduction. The objective of this study was to evaluate the efficiency of marker-assisted selection to identify genotypes resistant to SCN race 3 infection, using Sat_168 and Sat-141 resistance quantitative trait loci. The experiment was carried out under greenhouse conditions, using soybean populations originated from crosses bet.. Read More»
Genet. Mol. Res. 15(1): gmr.15016850
DOI: 10.4238/gmr.15016850
Evaluation of soybean lines and environmental stratification using the AMMI, GGE biplot, and factor analysis methods
In the final phases of new soybean cultivar development, lines are cultivated in several locations across multiple seasons with the intention of identifying and selecting superior genotypes for quantitative traits. In this context, this study aimed to study the genotype-by-environment interaction for the trait grain yield (kg/ha), and to evaluate the adaptability an.. Read More»
Genet. Mol. Res. 14(4): 2015.October.19.10
DOI: 10.4238/2015.October.19.10
Behavior of soybean genotypes in three locations in the Triângulo Mineiro
Soy is an important legume for global economy. The objectives of this study were evaluated soybean genotypes in different growing environments as for their agronomic characters and resistance to leaf spots, and determine the adaptability and phenotypic stability of materials in relation to the place of cultivation. Experiments were conducted in the cities of São Gotardo, Uberaba and Uber.. Read More»
Genet. Mol. Res. 18(3):
Inheritance of Precocity and of Agronomic Characters in Soybean
Precocious soybean cultivars enable crop rotation and low pressure to the biotic and abiotic factors. This study aimed to determinate the inheritance of characters related to precocity and agronomic characters in soybean segregating population, coming from contrasting genitors to cycle. The experiment was conducted at a greenhouse located at Capim Branco farm, be.. Read More»
Genet. Mol. Res. 16(4): gmr16039842
DOI: 10.4238/gmr16039842
Adaptability and Stability of Soybean Genotypes in the States of MaranhÃ?£o, PiauÃ?Â, Tocantins and Bahia
The soybean crop has a substantial importance for Brazil’s agribusiness and economy. Besides, breeding programs have contributed to the development of the crop in the country allowing grain yield increase and, at the same time, intensifying the production of new cultivars that show both yield predictability and wide adaptation. This study was aimed at evaluati.. Read More»
Genet. Mol. Res. 17(1): gmr16039895
DOI: 10.4238/gmr16039895
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