Adaptabilidade e estabilidade fenotípica de cultivares de cenoura

Oliveira, Cristina Duda de; Braz, Leila Trevisan; Banzatto, David Ariovaldo

doi:10.1590/s0102-05362008000100017

Cited by 13 publications

(16 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…O coeficiente de variação foi de 13,78% conferindo boa precisão ao experimento, já que o caráter massa de raiz é altamente influenciado pelo ambiente (Vieira e Silva, 2008;Vieira et al, 2009), sendo este valor semelhante aos obtidos por Oliveira et al (2005) e abaixo dos obtidos por Oliveira et al (2008).…”

Section: Resultsunclassified

“…Estudando a adaptabilidade e estabilidade das cultivares Brasília e Alvorada em São Paulo, Minas Gerais e Paraná, Oliveira et al (2005) verificaram que respondem bem a ambientes favoráveis e se destacaram pela tolerância à queima-das-folhas. O mesmo foi verificado por Oliveira et al (2008), que avaliaram Brasília e Alvorada em várias épocas e espaçamentos de semeadura em São José do Rio Pardo (SP) (Figura 1).…”

Section: Resultsunclassified

See 1 more Smart Citation

Verificação da adaptabilidade e estabilidade de populações de cenoura pelos métodos AMMI, GGE biplot e REML/BLUP

Silva¹,

Carvalho²,

Vieira³

et al. 2011

Bragantia

View full text Add to dashboard Cite

ResumoO objetivo desse estudo foi verificar a adaptabilidade e estabilidade de populações de cenoura diante de ambientes com cultivo orgânico e convencional e realizar a comparação entre as metodologias estatísticas utilizadas. O trabalho foi desenvolvido em 2007 e 2008, em cinco locais. Em São Gotardo (MG); Irecê (BA) e Gama (DF) foi realizado cultivo convencional e em PAD (DF) (Programa de Assentamento Dirigido do Distrito Federal) e Gama (DF) foi utilizado o sistema de cultivo orgânico. O delineamento experimental utilizado foi o de blocos ao acaso com três repetições e parcelas de 1 m 2 . Foram avaliadas sete populações de cenoura do grupo Brasilia: 0912545, 0912532, 0912520, BRS Planalto, Esplanada, Brasília e Alvorada. Aos cem dias após a semeadura, foi determinada em cada parcela, em gramas, a massa das raízes com padrão comercial. Para a avaliação da adaptabilidade e estabilidade foram aplicados os métodos AMMI, GGE Biplot e REML/BLUP. As análises AMMI e GGE Biplot foram bastante semelhantes na verificação da adaptabilidade e estabilidade das populações de cenoura, e GGE Biplot agrupou de maneira mais clara os ambientes mais favoráveis e desfavoráveis. A análise REML/BLUP se destacou das demais e apesar de não informar sobre o agrupamento de locais mais semelhantes, apresenta os resultados em função de valores genotípicos levando em consideração os parâmetros de adaptabilidade e estabilidade. As populações com melhor adaptabilidade e estabilidade foram 0912532, BRS Planalto e 0912520.Palavras-chave: Daucus carota L., interação populações x ambientes, análise multivariada, modelos mistos. Verification of the adaptability and stability of carrot populations by AMMI, GGE Biplot and REML/BLUP methods AbstractThe aim of this study was to verify the adaptability and stability of carrot populations for organic and conventional production systems and to draw a comparison among the used statistical methodologies. The study was carried out during 2007 and 2008, at five sites: conventional cultivation was performed in Sao Gotardo (MG), Irece (BA) and Gama (DF); and organic production system was performed in PAD-DF and Gama (DF). The experiment was arranged in complete randomized block design with tree replications and plots of 1 m 2 . Seven carrot populations from the Brasilia group were evaluated: 0912545, 0912532, 0912520, BRS Planalto, Esplanada, Brasilia and Alvorada. One-hundred days after sowing, the root mass with commercial value was evaluated in each plot. The methodologies AMMI, GGE Biplot and REML/BLUP were applied for evaluating the adaptability and stability. AMMI and GGE Biplot obtained very similar results regarding adaptability and stability of carrot populations; however GGE Biplot grouped the more favorable and unfavorable environments more clearly. The REML/BLUP analysis did not group of the most similar areas; however, it presented the results as function of genotypic values taking into account the parameters of adaptability and stability. The populations that presented the best adaptability and...

show abstract

Section: Resultsunclassified

Verificação da adaptabilidade e estabilidade de populações de cenoura pelos métodos AMMI, GGE biplot e REML/BLUP

Silva¹,

Carvalho²,

Vieira³

et al. 2011

Bragantia

View full text Add to dashboard Cite

show abstract

“…The correct choice of the cultivar for a certain crop season may define crop yield (Oliveira et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Nutrient Demand by the Carrot Crop Is Influenced by the Cultivar

Aquino

Assunção

Aquino

et al. 2015

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

Farmers must carefully choose the cultivar to be grown for a successful carrot crop. The yield potential of the cultivar may influence nutrient demand and should be known to plan for fertilization application. The aim of this study was to evaluate the cultivar effect on carrot yield and on the nutrient content and quantities allocated to leaves and roots. Three experiments were set up in two crop seasons in Rio Paranaíba, MG, Brazil. In the first season, typical summer, 10 summer cultivars were sown. In the second season, summer-winter (transition), two experiments were set up, one with summer cultivars and the other with winter cultivars. The treatments consisted of the carrot cultivars distributed in randomized blocks with four replications. Fresh and dry matter of the roots and leaves was quantified. Yield was calculated based on fresh matter of the roots. The nutrient content in leaves and roots was determined at the time of harvest. These contents and the dry matter production of roots and leaves were used to calculate nutrient uptake and export. The greatest average for total and commercial yield occurred in the crop under summer conditions. Extraction of N and K for most of the cultivars in the three experiments went beyond the amounts applied through fertilizers. Thus, there was contribution of nutrients from the soil to obtain the yields observed. However, the amount of P taken up was considerably less than that applied. This implies that soil P fertility will increase after cropping. The crop season and the cultivars influenced yield, nutrient content in the leaves and roots, and extraction and export of nutrients by the carrot crop.

show abstract

“…Thereby, the genotype by environment interaction (GxE) represents one of the most important challenges in breeding programs, once it restricts the selection progress. Very properly, it has been calling special attention among breeders (Oliveira et al, 2001;Silva et al, 2004;Oliveira et al, 2008;Vilela et al, 2009). Tai (1977) mentioned two strategies to circumvent GxE influence: a) the subdivision of heterogeneous areas into homogeneous subareas, each one containing its specific cultivars…”

mentioning

confidence: 99%

Stability of F7:8 snap bean progenies in the Northern and Northwestern regions of Rio de Janeiro State

Vilela¹,

Júnior²,

Gonçalves³

et al. 2011

Hortic. Bras.

View full text Add to dashboard Cite

The objective of this experiment was to assess the genotypes by environment interaction for eight morphoagronomic traits in thirty F7:8 snap bean superior lines and evaluate the pod yield stability. The experiments were carried out in the cities of Bom Jesus do Itabapoana, Campos dos Goytacazes and Itaocara, located in the Northern and Northwestern regions of Rio de Janeiro State, Brazil. Experiments were designed in randomized blocks with two replications, using the traditional method (Yates & Cochran, 1938) and the methods proposed by Plaisted & Peterson (1959), Wricke (1965), Kang & Phan (1991) and Lin & Binns (1988), as well. Only the average fiber content in pods revealed no significant genotype x environment interaction, whereas most of the traits showed simple interaction, including pod yield. The results obtained using the methods of Plaisted & Peterson (1959) and Wricke (1965) agreed to a far extent and had a moderate estimate (0.6131) in relation to the traditional method. Both methods highlighted genotypes with pod yield close to the general average, i.e., around 7,546.46 kg ha-1. Kang & Phan's (1991) algorithm was more efficient in optimizing the stability estimates obtained using the methods of Plaisted & Peterson (1959) and Wricke (1965) than the traditional method. Lin & Binns' (1988) procedure revealed the most stable, responsive and productive progenies. Progenies 04, 03 and 10 stood out in all environments.

show abstract

Adaptabilidade e estabilidade fenotípica de cultivares de cenoura

Cited by 13 publications

References 4 publications

Verificação da adaptabilidade e estabilidade de populações de cenoura pelos métodos AMMI, GGE biplot e REML/BLUP

Verificação da adaptabilidade e estabilidade de populações de cenoura pelos métodos AMMI, GGE biplot e REML/BLUP

Nutrient Demand by the Carrot Crop Is Influenced by the Cultivar

Stability of F7:8 snap bean progenies in the Northern and Northwestern regions of Rio de Janeiro State

Contact Info

Product

Resources

About