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Navegação Crop Breeding and Applied Biotechnology por data do documento
Itens para a visualização no momento 1-20 of 63
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(Crop Breeding and Applied Biotechnology, 2001)This paper introduces the coffee genetic breeding research program developed by IAPAR (Agronomic Institute of Paraná, Brazil) which started in 1973. The characteristics of a breeding program for a seed-propagated perennial ... -
(Crop Breeding and Applied Biotechnology, 2002)The genetic diversity of Coffea arabic L. cultivars is relatively narrow and its assessment and increase is important for breeding. Fifty two arbitrary primers were used to evaluate the reproducibility and the influence ...
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(Crop Breeding and Applied Biotechnology, 2002)Grafted young coffee trees were observed in a greenhouse to study the effect of different scions and rootstocks on plant growth. Four Coffea arabica L. genotypes were used as scions: the cultivars Catuaí Vermelho IAC 15 ...
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(Crop Breeding and Applied Biotechnology, 2002)Cutting propagation of coffee trees has been used for several years in Coffea canephora because of the advantages of this technique compared to seed propagation. Recently, the production of heterotic arabic coffee hybrid ...
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(Crop Breeding and Applied Biotechnology, 2004)Grafted Coffea arabica L. plants were grown hydroponically in a greenhouse for an evaluation of their nutritional efficiency under the influence of different rootstocks. Four C. arabica genotypes were used as scions: ‘Catuaí ...
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(Crop Breeding and Applied Biotechnology, 2004)This study aimed to estimate the repeatability coefficient of the grain yield in Coffea canephora by three methods: to quantify the precision of the measurements; to predict the real value of an individual based on n ...
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(Crop Breeding and Applied Biotechnology, 2004)The technique of factor analysis in the simultaneous selection of traits and prediction of genetic gains was evaluated in Coffea canephora var. conilon. Fourteen traits in 40 assessed genotypes were evaluated at two sites. ...
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(Crop Breeding and Applied Biotechnology, 2004)In a backcross population of the allotetraploid Coffea arabica L. the loci with diploid-like segregation were predominant, although a few loci with tetrassomic inheritance or distortion of the expected segregation were ...
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(Crop Breeding and Applied Biotechnology, 2004-03-12)Eighteen clones of differential coffee tree hosts for Hemileia vastatrix Berk. et Br. were characterized with RAPD markers. The genetic distances were estimated and the genealogical origin of the clones compared to data ...
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(Crop Breeding and Applied Biotechnology, 2004-07-07)This study evaluated the adequacy of the composition of three clonal Coffea canephora varieties recommended for the State of Espírito Santo by a multivariate method designated discriminant analysis. This method consists ...
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(Crop Breeding and Applied Biotechnology, 2005)This research was carried out to estimate the variability and genetic parameters for the development of cultivars more frost resistant in Coffea arabica progenies, carrying C. liberica var. dewevrei genes. There is genetic ...
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(Crop Breeding and Applied Biotechnology, 2005-09-06)The root-knot nematode Meloidogyne exigua is a parasite which attacks the Arabica coffee tree (Coffea sp.) and its eradication from infested areas is practically impossible. The wide dissemination of this nematode across ...
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(Crop Breeding and Applied Biotechnology, 2005-09-20)The objective of this work was to group different coffee species present in the genebank of the Instituto Agronômico by using some chemical variables. A total of thirty-nine plants belonging to seven species were analyzed ...
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(Crop Breeding and Applied Biotechnology, 2007-06-30)Genetic parameters of Arabic coffee progenies derived from the cross Villa Sarchi x Timor hybrid were estimated in order to evaluate their potential for improvement. The experiment was installed in a random block design ...
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(Crop Breeding and Applied Biotechnology, 2007-06-30)A partial map of Coffea arabica L. was constructed based on a backcross population and RAPD markers. From a total of 178 markers evaluated, only 134 that segregated 1:1 (P>0.05) were used to develop the map. Seventeen ...
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(Crop Breeding and Applied Biotechnology, 2008-06-09)The purpose of this study was to verify the possibility of using direct selection in nine traits underlying indirect selection for yield and determine which traits should participate in the selection process. Data of 40 ...
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(Crop Breeding and Applied Biotechnology, 2008-10-09)Simple sequence repeat (microsatellite) loci in coffee were identified in clones isolated from enriched and random genomic libraries. It was shown that coffee is a plant species with low microsatellite frequency. However, ...
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(Crop Breeding and Applied Biotechnology, 2009)This study aimed to evaluate the genetic variability of 49 Coffea canephora clones of the breeding program of the Capixaba Institute of Research, Technical Assistance and Rural Extension (Incaper) based on RAPD markers. ...
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(Crop Breeding and Applied Biotechnology, 2010)Thirty-three coffee SSR primers from enriched genomic library with (GT)15 and (AGG)10 repeats were analyzed in 24 coffee tree accessions. Twenty-two primers were polymorphic among accessions; the number of alleles ranged ...
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Breeding potential and genetic diversity of “Híbrido do Timor” coffee evaluated by molecular markers(Crop Breeding and Applied Biotechnology, 2010-06-20)AFLP, RAPD and SSR molecular markers were used to study the genetic diversity and genetic structure of the Híbrido de Timor germplasm. The principal coordinate analysis, UPGMA cluster analysis based on genetic dissimilarity ...
Itens para a visualização no momento 1-20 of 63
