M.A.P. Ramalho
Genetic control of number of flowers and pod set in common bean
This article aimed to study the genetic control of some flowers and pod set of common bean and to verify if its estimate varies with environmental conditions and gene pool. A complete diallel was used among six lines, but no reciprocal ones. The treatments were evaluated in three harvests/generations - F2, F3, and F4 - in 2015/2016, in a randomized complete block de.. Read More»
Genet. Mol. Res. 16(3): gmr16039723
DOI: 10.4238/gmr16039723
Experimental strategies in performing value for cultivation and use experiments for the tobacco crop II: dimension of the experimental network
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 i.. Read More»
Genet. Mol. Res. 13(3): 2014.July.25.8
DOI: 10.4238/2014.July.25.8
Correspondence between performance of Eucalyptus spp trees selected from family and clonal tests
We examined the correspondence in performance between trees selected from a family test and their respective clones from a clonal test of Eucalyptus. Full-sib families were obtained from controlled pollination among individuals of Eucalyptus grandis and between E. grandis and E. urophylla. The hybridizations did not follow a factorial scheme. The family tests were c.. Read More»
Genet. Mol. Res. 10(2): vol10-2gmr1078
DOI: 10.4238/vol10-2gmr1078
Genotype x environment interaction and its implication in identification of common bean populations with high calcium content
The common bean is a food with high mineral content. Of the various types of beans cultivated in Brazil, carioca type beans are the most consumed. The aim of this study was to identify promising common bean populations with an emphasis toward the selection of carioca type bean lines with high calcium content. We also aimed to verify whether and how the crop season a.. Read More»
Genet. Mol. Res. 15(2): gmr.15028053
DOI: 10.4238/gmr.15028053
Experimental strategies in carrying out VCU for tobacco crop I: plot design and size
We aimed to establish standards for tobacco Valor de Cultivo e Uso (VCU) in Brazil. We obtained information regarding the size and design of plots of two varietal groups of tobacco (Virginia and Burley). Ten inbred lines of each varietal group were evaluated in a randomized complete block design with four replications. The plot contained 42 plants with six rows of seven columns each. For each e.. Read More»
Genet. Mol. Res. 12(3): 2013.September.19.8
DOI: 10.4238/2013.September.19.8
Genetic control of inflorescence in common bean
The number of pods per common bean plant is a primary component of grain yield, which depends on the number of flowers produced and on the flower set. Thus, a larger number of flowers per plant would increase yield. Lines with inflorescences that had a large number of flowers compared to common bean plants now under cultivation were identified. We analyzed the genetic control of this trait and .. Read More»
Genet. Mol. Res. 13(4): 2014.December.4.30
DOI: 10.4238/2014.December.4.30
Genetic progress estimation strategy for upright common bean plants using recurrent selection
Common bean producers in Brazil tend to grow plants as upright as possible. Because the control of this trait involves a large number of genes, recurrent selection (RS) is the best approach for successful plant improvement. Because plant architecture (PA) is evaluated using scores and usually has high heritability, RS for PA is performed through visual selection in .. Read More»
Genet. Mol. Res. 16(1): gmr16019494
DOI: 10.4238/gmr16019494
Geometry applied to breeding common beans (Phaseolus vulgaris)
The primary components of common bean (Phaseolus vulgaris) grain yield (W) are the number of pods (X), the number of grains per pod (Y), and the weight of the grains (Z). In 1964, Grafius suggested using geometry in plant breeding; W corresponds to the volume of a parallelepiped with three axes, X, Y, and Z. Because the cube is the largest parallelepiped by volume, .. Read More»
Genet. Mol. Res. 15(2): gmr.15027873
DOI: 10.4238/gmr.15027873
Strategies in identifying individuals in a segregant population of common bean and implications of genotype x environment interaction in the success of selection
The objective of this study was to compare the BLUP selection method with different selection strategies in F2:4 and assess the efficiency of this method on the early choice of the best common bean (Phaseolus vulgaris) lines. Fifty-one F2:4 progenies were produced from a cross between the CVIII8511 x RP-26 lines. A randomized block design was used with 20 replicatio.. Read More»
Genet. Mol. Res. 11(2): 2012.April.10.3
DOI: 10.4238/2012.April.10.3
Non-parametric approach to the study of phenotypic stability
The aim of this study was to undertake the theoretical derivations of non-parametric methods, which use linear regressions based on rank order, for stability analyses. These methods were extension different parametric methods used for stability analyses and the result was compared with a standard non-parametric method. Intensive computational methods (e.g., bootstrap and permutation) were appli.. Read More»
Genet. Mol. Res. 15(1): gmr.15017517
DOI: 10.4238/gmr.15017517
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