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F.D. Tardin

Publications of : F.D. Tardin
Plant Genetics   Research Article

Contemporary pollen and seed dispersal in natural populations of Bertholletia excelsa (Bonpl.)

Due to the nutritional content and commercial value of its seeds, Bertholletia excelsa is one of the most important species exploited in the Amazon region. The species is hermaphroditic, insect pollinated, and its seeds are dispersed by barochory and animals. Because the fruit set is dependent on natural pollinator activity, gene flow plays a key role in fruit produ.. Read More»

Genet. Mol. Res. 16(3): gmr16039756

DOI: 10.4238/gmr16039756

Plant Genetics   Research Article

Identification of sorghum hybrids with high phenotypic stability using GGE biplot methodology

    P.E. Teodoro, J.E. Almeida Filho, R.F. Daher, C.B. Menezes, M.J. Cardoso, V.P.C. Godinho, F.E. Torres and F.D. Tardin

The aim of this study was to identify sorghum hybrids that have both high yield and phenotypic stability in Brazilian environments. Seven trials were conducted between February and March 2011. The experimental design was a randomized complete block with 25 treatments and three replicates. The treatments consisted of 20 simple pre-commercial hybrids and five witnesse.. Read More»

Genet. Mol. Res. 15(2): gmr.15027914

DOI: 10.4238/gmr.15027914

Plant Genetics   Research Article

Correlation and path analysis of biomass sorghum production

    T.P.S. Vendruscolo, M.A.A. Barelli, M.A.S. Castrillon, R.S. da Silva, F.T. de Oliveira, C.L. Corrêa, B.W. Zago and F.D. Tardin

Sorghum biomass is an interesting raw material for bioenergy production due to its versatility, potential of being a renewable energy source, and low-cost of production. The objective of this study was to evaluate the genetic variability of biomass sorghum genotypes and to estimate genotypic, phenotypic, and environmental correlations, and direct and indirect effect.. Read More»

Genet. Mol. Res. 15(4): gmr15049086

DOI: 10.4238/gmr15049086

Plant Genetics   Research Article

Biplot analysis of strawberry genotypes recommended for the State of Esp�?­rito Santo

    A.F. Costa, P.E. Teodoro, L.L. Bhering, N.R. Leal, F.D. Tardin and R.F. Daher

Most strawberry genotypes grown commercially in Brazil originate from breeding programs in the United States, and are therefore not adapted to the various soil and climatic conditions found in Brazil. Thus, quantifying the magnitude of genotype x environment (GE) interactions serves as a primary means for increasing average Brazilian strawberry yields, and helps provide specific recommendations.. Read More»

Genet. Mol. Res. 15(3): gmr.15038919

DOI: 10.4238/gmr.15038919

Plant Genetics   Research Article

Adaptability and stability of genotypes of sweet sorghum by GGEBiplot and Toler methods

    U.J. de Figueiredo, J.A.R. Nunes, R.A. da C. Parrella, E.D. Souza, A.R. da Silva, B.M. Emygdio, J.R.A. Machado and F.D. Tardin

Sweet sorghum has considerable potential for ethanol and energy production. The crop is adaptable and can be grown under a wide range of cultivation conditions in marginal areas; however, studies of phenotypic stability are lacking under tropical conditions. Various methods can be used to assess the stability of the crop. Some of these methods generate the same basic information, whereas others.. Read More»

Genet. Mol. Res. 14(3):


Plant Genetics   Research Article

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

    J.E. Almeida Filho, F.D. Tardin, R.F. Daher, T.C. Barbé, C.M. Paula, M.J. Cardoso and V.P.C. Godinho

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 interaction.. Read More»

Genet. Mol. Res. 13(3): 2014.March.24.24

DOI: 10.4238/2014.March.24.24

Plant Genetics   Research Article

Genetic diversity between and within half-sib families of Brazil nut tree (Bertholletia excelsa Bonpl.) originating from native forest of the Brazilian Amazon

Brazil nut tree is a species of economic importance for the Amazon region, known for the commercialization of its almonds. The objective of this work was to study the genetic diversity among half-sib progenies from different Brazil nut trees present in native forest in the municipality of Itaúba, MT, belonging to the Brazilian Amazon. In a native forest area .. Read More»

Genet. Mol. Res. 16(4): gmr16039839

DOI: 10.4238/gmr16039839

Plant Genetics   Research Article

Multi-trait BLUP model indicates sorghum hybrids with genetic potential for agronomic and nutritional traits

    J.E. Almeida Filho, F.D. Tardin, J.F.R. Guimarães, M.D.V. Resende, F.F. Silva, M.L. Simeone, C.B. Menezes and V.A.V. Queiroz

The breeding of sorghum, Sorghum bicolor (L.) Moench, aimed at improving its nutritional quality, is of great interest, since it can be used as a highly nutritive alternative food source and can possibly be cultivated in regions with low rainfall. The objective of the present study was to evaluate the potential and genetic diversity of grain-sorghum hybrids for traits of agronomic and nutrition.. Read More»

Genet. Mol. Res. 15(1): gmr.15017071

DOI: 10.4238/gmr.15017071

Plant Genetics   Research Article

Evaluation of grain yield in sorghum hybrids under water stress

    C.B. Menezes, D.C. Saldanha, C.V. Santos, L.C. Andrade, M.P. Mingote Júlio, A.F. Portugal and F.D. Tardin

Sorghum grain yield can be significantly affected by climatic changes, especially drought and high temperature. The purpose of this study was to evaluate hybrids of grain sorghum grown under normal irrigation conditions or water stress in order to select those likely to be more tolerant of drought. Forty-nine hybrids were grown in a randomized block design experimen.. Read More»

Genet. Mol. Res. 14(4): 2015.October.19.11

DOI: 10.4238/2015.October.19.11

Animal Genetics   Research Article

Estimative of genetic diversity in germ-plasm of elephant grass using the Gower algorithm

This work aimed at estimating the genetic divergence among 85 accessions of elephant-grass using the Gower algorithm for the joint study of quantitative and qualitative traits. The experiment was conducted in the city of Campos dos Goytacazes, Rio de Janeiro state, Brazil, with of 85 elephant-grass genotypes. It was applied a randomized block experimental design with two replications. The exper.. Read More»

Genet. Mol. Res. 17(4):