The functional divergence of biomass partitioning, carbon gain and water use in Coffea canephora in response to the water supply: Implications for breeding aimed at improving drought tolerance

Silva, Paulo E. M.; Cavatte, Paulo Cezar; Morais, Leandro E.; Medina, Eduardo F.; DaMatta, Fábio M.

doi:10.1016/j.envexpbot.2012.09.005

Cited by 57 publications

(76 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The maintenance of growth in some C. canephora genotypes may be associated with mechanisms of tolerance to low temperatures and drought, including the postponement of dehydration to maintain whole-tree photosynthesis, xanthophyll cycle efficiency, increased antioxidant enzyme activity (Fortunato et al, 2010;Silva et al, 2013), and altered leaf lipid and sugar class composition, which might differ among these C. canephora genotypes, as found in Coffea spp. Partelli et al, 2009Partelli et al, , 2011.…”

Section: Resultsmentioning

confidence: 99%

Seasonal Vegetative Growth in Genotypes of Coffea canephora, as Related to Climatic Factors

Partelli¹,

Marré²,

Falqueto³

et al. 2013

JAS

View full text Add to dashboard Cite

Knowledge about the seasonality of different genotypes of Coffea canephora is an important tool for this crop management, particularly with regard to irrigation and fertilisation issues. This study was conducted in Espírito Santo, Brazil and aimed at to evaluate the seasonal vegetative growth in genotypes of C. canephora, as related to climatic factors, based on the growth of groups of orthotropic and plagiotropic branches with different ages. Three groups of plagiotropic branches and one group of orthotropic branches of 14 genotypes (Ipiranga and 13 that belonged to the variety Vitória) were selected and marked to followed along the one-year experiment. Three-year-old plants were cultivated under full-sun conditions, with a spacing of 3 m between rows and 1 m between plants. The growth rates of the orthotropic and plagiotropic branches differed among the genotypes and underwent seasonal variation during the entire year, with high correlations to the air temperature. Under the natural experimental conditions, the growth rate of the branches decreased when the minimum air temperatures were below 17.2ºC for most of the genotypes studied. The plagiotropic branches presented lower vegetative growth, mainly for the coffee berries, compared to the younger branches. Presumably, the genotypes of C. canephora demanded more nutrients for growth between mid-September and the second week of May.

show abstract

Section: Resultsmentioning

confidence: 99%

Seasonal Vegetative Growth in Genotypes of Coffea canephora, as Related to Climatic Factors

Partelli¹,

Marré²,

Falqueto³

et al. 2013

JAS

View full text Add to dashboard Cite

show abstract

“…A water deficit is the main environmental factor affecting agricultural production in Brazil (DaMatta, Ronchi, Maestri, & Barros, 2010). According to Silva, Cavatte, Morais, Medina, and DaMatta (2013), short water deficit periods may substantially reduce coffee production.…”

Section: Resultsmentioning

confidence: 99%

<b>Vegetative growth of Conilon coffee plants under two water conditions in the Atlantic region of Bahia State, Brazil

et al. 2016

View full text Add to dashboard Cite

ABSTRACT. Extreme temperatures and persistent water stress stand out among the main factors that restrict the vegetative growth and productivity of Coffea canephora. The objective of this study was to evaluate the vegetative growth of orthotropic and plagiotropic branches of C. canephora under non-irrigated and irrigated conditions, and their correlation with climatic factors in the Atlantic region of Bahia State, Brazil. The experiment was established with two treatments (non-irrigated and irrigated) in a completely random design with 14 replicates. One orthotropic and four plagiotropic branches were labelled on each plant. During the two-year experimental period, the growth of these branches was evaluated at 14-day intervals. Two harvests were performed to obtain productivity data. In summary, it was confirmed that irrigation resulted in an increased productivity of Conilon coffee in the Atlantic region of Bahia, Brazil. The growth rate of the orthotropic and plagiotropic branches was higher in irrigated plants. The growth rate of the plagiotropic branches was limited by the fruit load capacity. The growth rate of C. canephora branches was not limited by the minimum average air temperature in the Atlantic region of Bahia, Brazil.Keywords: Coffea canephora, water deficit, temperature, plagiotropic branches. RESUMO.Temperaturas extremas e o deficit hídrico prolongado destacam-se como os fatores limitantes ao crescimento vegetativo e à produtividade de Coffea canephora. O objetivo foi avaliar o crescimento vegetativo de ramos ortotrópicos e plagiotrópicos de C. canephora em condições não irrigadas e irrigadas, e relacioná-lo com os fatores climáticos, na região Atlântica da Bahia. O experimento foi instalado com dois tratamentos (não irrigado e irrigado), no delineamento inteiramente casualizado, com 14 repetições. Marcou-se um ramo ortotrópico e quatro ramos plagiotrópicos em cada planta. O crescimento desses ramos foi avaliado em intervalos de 14 dias, durante dois anos. Foram realizadas duas colheitas para obtenção da produtividade. Em resumo, foi confirmado que a irrigação resultou em aumento de produtividade de café Conilon na região Atlântica da Bahia. A taxa de crescimento dos ramos ortotrópicos e plagiotrópicos com carga pendente é superior nas plantas irrigadas. A taxa de crescimento de ramos plagiotrópicos é limitada pela carga pendente. A taxa de crescimento dos ramos de C. canephora não é limitada pela temperatura mínima média do ar predominante na região Atlântica da Bahia. Palavras-chave:Coffea canephora, deficit hídrico, temperatura, ramos plagiotrópicos.

show abstract

“…Segundo DaMatta & Ramalho (2006), em diversos países produtores de café, o deficit hídrico é considerado o principal estresse ambiental capaz de afetar o desenvolvimento e a produção do cafeeiro. Os principais mecanismos fisiológicos de tolerância ao deficit hídrico em genótipos de C. canephora são a eficiência na retirada de água do solo, o controle estomático e a redução da área foliar para manutenção da transpiração (Pinheiro et al, 2004;Marraccini et al, 2012;Silva et al, 2013). Genótipos com produção relativamente elevada, submetidos ao deficit hídrico, são capazes de manter potenciais hídricos foliares adequados, por meio da combinação entre o aprofundamento do sistema radicular e o aumento do controle estomático (Silva et al, 2010).…”

Section: Introductionunclassified

Distribuição do sistema radicular de cafeeiro conilon irrigado e não irrigado

Covre

Partelli

Gontijo

et al. 2015

Pesq. agropec. bras.

View full text Add to dashboard Cite

Resumo -O objetivo deste trabalho foi avaliar a distribuição do sistema radicular do cafeeiro conilon (Coffea canephora) irrigado e não irrigado. Utilizaram-se plantas de conilon da variedade clonal Emcapa 8111, genótipo 02, com cinco anos de idade. Utilizou-se o delineamento inteiramente casualizado, em parcela subsubdividida, com cinco repetições. Os tratamentos consistiram de: presença e ausência de irrigação (parcelas), 13 distâncias do tronco (dez no sentido da entrelinha e três no sentido da linha de plantio) e seis camadas de solo (0-60 cm) nas subparcelas. As raízes foram coletadas, lavadas, digitalizadas e processadas pelo programa Safira, para quantificar área superficial, comprimento, volume e diâmetro. As plantas de conilon não irrigadas apresentaram maiores área superficial, comprimento e volume de raízes por volume de solo, bem como distribuição de raízes menos discrepante na superfície do solo e em profundidade, em comparação às plantas irrigadas. O sistema de irrigação por gotejamento promove maior distribuição de raízes nas plantas irrigadas, na zona compreendida pelo bulbo úmido da irrigação.Termos para indexação: Coffea canephora, deficit hídrico, irrigação por gotejamento, programa Safira. Root system distribution of irrigated and nonirrigated conilon coffeeAbstract -The objective of this work was to evaluate the distribution of the root system of irrigated and nonirrigated conilon coffee (Coffea canephora). Conilon plants of the clonal variety Emcapa 8111, genotype 02, with five years of age, were used. The design was completely randomized in split-split plots with five replicates. The treatments consisted of: presence and absence of irrigation (plots), 13 distances from the stem (ten in the direction between rows and three of the planting row) and six soil layers (0-60 cm) in the split-plots. Roots were collected, washed, scanned, and processed by the Safira software to quantify surface area, length, volume, and diameter. Nonirrigated conilon plants showed greater root surface area, length, and volume per soil volume, as well as less discrepant distribution of roots in the soil surface and in depth, in comparison to irrigated plants. The drip irrigation system promotes higher root distribution in irrigated plants, in the area covered by the wet-bulb irrigation.

show abstract

The functional divergence of biomass partitioning, carbon gain and water use in Coffea canephora in response to the water supply: Implications for breeding aimed at improving drought tolerance

Cited by 57 publications

References 31 publications

Seasonal Vegetative Growth in Genotypes of Coffea canephora, as Related to Climatic Factors

Seasonal Vegetative Growth in Genotypes of Coffea canephora, as Related to Climatic Factors

<b>Vegetative growth of Conilon coffee plants under two water conditions in the Atlantic region of Bahia State, Brazil

Distribuição do sistema radicular de cafeeiro conilon irrigado e não irrigado

Contact Info

Product

Resources

About