Parâmetros genéticos em café Conilon

Ferrão, R. G.; Cruz, Cosme Damião; Ferreira, Adésio; Cecon, Paulo Roberto; Ferrão, Maria Amélia Gava; Fonseca, Aymbiré Francisco Almeida da; Carneiro, Pedro Crescêncio de Souza; Silva, Marcia Flores da

doi:10.1590/s0100-204x2008000100009

Cited by 51 publications

(57 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This fact is justified, as already discussed above, by the genetic and phenotypic differences between conilon coffee clones, as reported by Fonseca et al (2004) and Ferrão et al (2008). Different efficiencies for absorption, translocation and utilization of P in different levels of phosphate fertilizer for genotypes of the same species were also found in potato (Castro, 2009), and corn (Machado et al, 2001), and pepper (Moura et al, 2001) and physic nut (Amaral et al, 2012).…”

Section: Nutritional Efficiency Of P Of Clones Of Conilon Coffeementioning

confidence: 54%

“…This differential behavior is justifiable due to the nutritional requirement being variable between genotypes of the same species, depending on the genetic and phenotypic variability (Fageria, 1998). According to Fonseca et al (2004) and Ferrão et al (2008), conilon coffee clones have a wide phenotypic and genetic variability, which allows different behavior of the genetic material, indicating the need for attention to adaptability and stability of genotypes for different soil conditions. The CV-09 clone showed high capacity for P accumulation, justified by its allocation in the higher average group of P content (PR, PAP and TP) at all levels of phosphorus fertilization studied.…”

Section: Phosphorus Levels Influence Production Of Dry Matter and Conmentioning

confidence: 99%

See 1 more Smart Citation

Nutritional Efficiency in Clones of Conilon Coffee for Phosphorus

Martins¹,

Tomaz²,

Amaral³

et al. 2012

JAS

View full text Add to dashboard Cite

The objective of this study was to evaluate the nutritional efficiency of phosphorus in clones of conilon coffee, in greenhouse condition. A factorial design 13 x 4 was used, with three replications, and the factors being: 13 clones that compose the clonal cultivar "Vitória Incaper 8142" and four levels of phosphorus fertilization (0%, 50%, 100% and 150% of the recommended P 2 O 5 for the culture) in a completely randomized design (CRD). The cultivation consisted of a period of 150 days, then in each experimental unit, the values of dry matter and phosphorus content of the vegetative parts were obtained. The indices of nutritional efficiency (absorption, translocation and utilization) were calculated. The clones of conilon coffee showed different behavior for all variables at each level of fertilization with P 2 O 5 . The mass of dry weight, phosphorus content, and efficiency of phosphorus utilization of the clones increase linearly with the increase of P 2 O 5 . The efficiency of phosphorus absorption, depending on the levels of P 2 O 5 applied to the clones of conilon coffee, has set to a quadratic model. The translocation efficiency of phosphorus, depending on the levels of P 2 O 5 applied, is different for clones of conilon coffee, with a linear characteristic and also quadratic.

show abstract

Section: Nutritional Efficiency Of P Of Clones Of Conilon Coffeementioning

confidence: 54%

Section: Phosphorus Levels Influence Production Of Dry Matter and Conmentioning

confidence: 99%

Nutritional Efficiency in Clones of Conilon Coffee for Phosphorus

Martins¹,

Tomaz²,

Amaral³

et al. 2012

JAS

View full text Add to dashboard Cite

show abstract

“…Esse resultado indica a existência de variabilidade genética entre as variedades botânicas Conilon, Robusta e híbridos intervarietais (Tabela 1). Ferrão et al (2008b) também observaram efeito significativo de genótipos na avaliação da peneira média em 40 clones da variedade botânica Conilon ao longo de cinco anos. Na avaliação de 21 progênies de meios-irmãos de C. canephora Ivoglo et al (2008) também observaram diferença significativa pelo teste F no tamanho médio dos grãos.…”

Section: Resultsunclassified

CARACTERIZAÇÃO DA PENEIRA MÉDIA E PERCENTUAL DE GRÃO TIPO MOCA DE Coffea Canephora DAS VARIEDADES BOTÂNICAS CONILON E ROBUSTA

Souza¹,

Rocha²,

Moraes³

et al. 2017

Enci Bio

View full text Add to dashboard Cite

RESUMOEntre as diversas espécies de café identificadas, o Coffea arabica e o Coffea canephora, são as cultivadas comercialmente de maneira significativa. Na região Amazônica a principal espécie cultivada é o C.canephora que apresenta naturalmente duas variedades botânicas distintas o Conilon e o Robusta. Essas variedades possuem diferentes características em relação ao tamanho e a forma do grãos que são classificados de acordo com a retenção em peneiras com crivos de diferentes diâmetros. O objetivo desse trabalho foi quantificar ao longo de duas safras a peneira média (PM) e o percentual de grãos moca (PGM) de C.canephora. Para isso foram coletadas, amostras de 300 gramas de café de 112 clones, das variedades botânicas Conilon (68) e Robusta (18) e de híbridos intervarietais (26), provenitente do campo experimental da Embrapa Rondônia do município de Ouro Preto do Oeste -RO. Peneiras de crivos oblongos, de numeração 9 a 13 foram utilizadas para caracterizar os grãos tipo moca e as circulares de 12 a 19 para os grãos tipo chato. Observou-se que a PM não alterou sua média de um ano para o outro (14,75), diferente do PGM que apresentou média de 32,5 no 1º ano e 54,01 no 2º ano. A PM é uma característica que foi pouca influenciada pelo ambiente em comparação com o PGM que apresentou uma baixa correlação ao longo do tempo. As variedades botânicas apresentam expressiva diversidade genética para PM que subsidia a seleção de novas cultivares que reúnam uma série de característica favoráveis. PALAVRAS-CHAVE: Melhoramento genético, Qualidade, rondônia.

show abstract

“…responses of genotypes to stress from high temperatures and drought, incidence of pests and diseases, and stress caused by wind and pruning [28]. High estimates of CVe for NCFr and NPFr have been observed in studies with papaya [29], being indicated the sum of the values of two variables to form a single trait (deformed fruits) [30], thus reducing the estimates of CVe to acceptable values.…”

Section: Resultsmentioning

confidence: 99%

Combined Selection in Backcross Population of Papaya (<i>Carica papaya</i> L.) by the Mixed Model Methodology

Ramos¹,

Pereira²,

Viana³

et al. 2014

AJPS

View full text Add to dashboard Cite

The selection of superior genotypes based on the simultaneous response to several characteristics of agronomic importance is a key strategy to overcome the scarcity of available varieties of papaya. This study aimed to apply the combined selection by using distinct selection indexes based on both the genetic values obtained by the REML/BLUP methodology and the real measured values to select agronomically superior genotypes of papaya within backcross progenies. The combined selection was carried out based on genetic and phenotypic values, original and standardized, multiplied by the agronomic weights. The results of the analysis of genetic parameters indicate that the evaluated progenies have expressive genetic variability for the considered traits, and that there are real possibilities of genetic progress with the selection. Among the analyzed indexes, the one based on standardized genetic value presented greater consistency in the ranking of genetic material, demonstrating the advantage of data standardization. Five progenies belonging to the BC1 generation, and five to the BC 3 generation were selected using this index. A total of 27 plants agronomically superior were selected within the top five progenies and recommended for generation advance, 23 being selected by combined selection and 4 using the direct selection for the four mainly characters in papaya breeding program: production, pulp and fruit firmness and soluble solids. Beyond the selection of superior genotypes for the development of future inbred lines, this study also allowed defining the best strategy to apply the combined selection in papaya using predicted breeding values obtained by BLUP. This strategy may allow higher accuracy in the selection process, thus increasing the chances of success of the breeding programs.

show abstract

Parâmetros genéticos em café Conilon

Cited by 51 publications

References 7 publications

Nutritional Efficiency in Clones of Conilon Coffee for Phosphorus

Nutritional Efficiency in Clones of Conilon Coffee for Phosphorus

CARACTERIZAÇÃO DA PENEIRA MÉDIA E PERCENTUAL DE GRÃO TIPO MOCA DE Coffea Canephora DAS VARIEDADES BOTÂNICAS CONILON E ROBUSTA

Combined Selection in Backcross Population of Papaya (<i>Carica papaya</i> L.) by the Mixed Model Methodology

Contact Info

Product

Resources

About

Parâmetros genéticos em café Conilon

Cited by 51 publications

References 7 publications

Nutritional Efficiency in Clones of Conilon Coffee for Phosphorus

Nutritional Efficiency in Clones of Conilon Coffee for Phosphorus

CARACTERIZAÇÃO DA PENEIRA MÉDIA E PERCENTUAL DE GRÃO TIPO MOCA DE Coffea Canephora DAS VARIEDADES BOTÂNICAS CONILON E ROBUSTA

Combined Selection in Backcross Population of Papaya (&lt;i&gt;Carica papaya&lt;/i&gt; L.) by the Mixed Model Methodology

Contact Info

Product

Resources

About

Combined Selection in Backcross Population of Papaya (<i>Carica papaya</i> L.) by the Mixed Model Methodology