Produção e desenvolvimento radicular de plantas de café 'Conilon' propagadas por sementes e por estacas

Partelli, Fábio Luiz; Vieira, Henrique Duarte; Santiago, Anderson Ribeiro; Barroso, Déborah Guerra

doi:10.1590/s0100-204x2006000600008

Cited by 19 publications

(16 citation statements)

References 17 publications

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“…(Table 2). Partelli et al (2006) verified that for the root diameter, there were no differences according to horizontal position (distance from the plant trunk) or vertical position (depth) in the soil sampling.…”

Section: Resultssupporting

confidence: 54%

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Wet bulb and Conilon coffee root distribution under drip irrigation

et al. 2018

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Knowledge of the wet bulb and the root system of the Conilon coffee plant is highly important for the correct management of irrigation. Therefore, the aim of this work was to characterize the wet bulb and Conilon coffee root distribution under drip irrigation. The experiment was conducted in the city of São Mateus, ES, Brazil with five replications of a completely randomized design of a 4 x 6 split-plot scheme, which represents four points located according to plant location and six depths. Two points were located in the plant line and two points between lines. For row spacing, we used a split-plot scheme 5 x 6 with five points in relation with plant location and six depths with five replications. The coffee roots were analysed by volume, superficial area, length and diameter. The wet bulb was measured with tubes located in six points near the plants with two points in the plant row (between two plants) and five points between rows. The measurements were conducted at four depth ranges with three replications. The wet bulb reached a depth of between 0.40 and 0.50 m, providing an excess of water in depth, evidencing the importance of this characterization for the irrigation management of drip-irrigated Conilon coffee. The depth of the radicular system for better irrigation management efficiency of drip-irrigated coffee is 0.30 m, exhibiting 67.4% of root volume and 68.0% of surface area.Index terms: Coffea canephora; soil moisture; irrigation management. RESUMOO conhecimento do bulbo molhado e do sistema radicular do cafeeiro Conilon é de suma importância para o manejo correto da irrigação. Diante disso, objetivou-se caracterizar o bulbo molhado e o sistema radicular do cafeeiro Conilon sob irrigação localizada. O experimento foi realizado em São Mateus-ES, em um delineamento inteiramente casualizado em parcela subdividida 4 x 6, sendo quatro pontos em relação à planta e seis faixas de profundidade, com cinco repetições. Sendo dois na linha e sete na entre linha com distância entre si de 0,20 m. E na entre linha do cafeeiro em parcela subdividida 5 x 6, sendo cinco pontos em relação à planta e seis faixas de profundidade, com cinco repetições. Foram avaliados volume, área superficial, comprimento e diâmetro de raiz. O bulbo molhado foi determinado usando tubos dispostos em seis pontos em relação à planta, sendo um ponto na linha de plantio do cafeeiro entre duas plantas, e em cinco pontos na entre linha, sendo as medições realizadas em quatro faixas de profundidades, com três repetições. O bulbo molhado atingiu profundidade entre 0,40 a 0,50 m, proporcionando excesso de água em profundidade, evidenciando a importância dessa caracterização para o manejo da irrigação do cafeeiro Conilon irrigado por gotejamento. A profundidade do sistema radicular para melhor eficiência do manejo da irrigação do café Conilon irrigado por gotejamento é de 0,30 m, tendo apresentaram está profundidade 67,4% do volume de raiz e 68,0% de área superficial.Termos para indexação: Coffea canephora; umidade do solo; manejo da irrigação.

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Section: Resultssupporting

confidence: 54%

“…Partelli et al (2006) verified that the surface area was statistically the same up to 0.60 m when at 0.50 m distant from the plant and up to 0.40 m deep when at 0.25 m distant from the plant, being statistically the same for the depth ranges above.…”

Section: Resultsmentioning

confidence: 59%

Wet bulb and Conilon coffee root distribution under drip irrigation

et al. 2018

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“…Washing was carried out under running water using a 30-mesh sieve. The roots collected by the 30-mesh sieve were transferred to another of 60-mesh sieve and again washed in running water (Partelli et al, 2006(Partelli et al, , 2014Covre et al, 2015).…”

Section: Methodsmentioning

confidence: 99%

Research Article Genetic diversity among 16 genotypes of Coffea arabica in the Brazilian cerrado.

Machado¹,

Pimentel²,

Golynsk³

et al. 2017

Genet. Mol. Res.

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ABSTRACT. For the selection of coffee plants that have favorable characteristics, it is necessary to evaluate variables related to production. Knowledge of the genetic divergence of arabica coffee is of extreme importance, as this knowledge can be associated with plant breeding programs in order to combine genetic divergence with good productive performance. The objective of this study was to evaluate the genetic divergence among 16 genotypes of Coffea arabica with the purpose of identifying the most dissimilar genotypes for the establishment of breeding programs and adaptation to the Brazilian cerrado. The genetic divergence was evaluated using multivariate procedures, the analysis of the average grouping unweighted pair group method with arithmetic mean (UPGMA) and main components in 2013 and 2014. Eight characters were evaluated in an experiment conducted in Morrinhos, Goiás. The presence of genetic divergence among the 16 C. arabica genotypes under cerrado conditions was recorded. The formation of UPGMA groups for the evaluated characteristics was pertinent due to the number of genotypes. The first three major components accounted for 81.77% of the total variance. The genotype H-419-3-4-4-13(C-241) of low size was the most divergent, followed by Catucaí 2 SL and Catiguá MG2, according to the main components.

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“…Sabe-se que o sistema radicular do cafeeiro apresenta alta plasticidade, e que sua distribuição e morfologia são dependentes da idade da planta (Bragança, 2005), do tipo de irrigação e do manejo nutricional adotados (Barreto et al, 2006), da relação entre fonte e dreno (Alves et al, 2011), do método de formação de mudas (Partelli et al, 2006(Partelli et al, , 2014Silva et al, 2010), das características químicas do solo (Mota et al, 2006), da calagem em subsuperfície (Rodrigues et al, 2001), das práticas culturais (Rena & DaMatta, 2002), da competição e das espécies de plantas daninhas (Ronchi et al, 2007), entre outros (Rena & DaMatta, 2002;DaMatta et al, 2007).…”

Section: Introductionunclassified

Morfologia radicular de cultivares de café arábica submetidas a diferentes arranjos espaciais

Ronchi

Júnior

Ameida

et al. 2015

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar as respostas morfológicas do sistema radicular de quatro cultivares de café arábica submetidas a diferentes arranjos espaciais. Os espaçamentos adotados foram os de 0,40, 0,50, 0,60, 0,70 e 0,80 m entre plantas na linha, tendo-se mantido fixo 3,8 m na entrelinha. Aos 27, 35 e 39 meses após o transplantio, foram coletadas amostras de solo+raízes em três posições em relação aos caules das plantas e três profundidades. As raízes foram lavadas, coloridas, digitalizadas e processadas com o programa Safira. A cultivar Tupi RN IAC 1669-13 apresentou sistema radicular com características morfológicas relacionadas à absorção de nutrientes e de água superiores às das cultivares Catuaí Vermelho IAC 144, Catuaí Amarelo IAC 62 e Catuaí Amarelo IAC 32, para todos os arranjos espaciais testados. A redução no espaçamento aumenta a abundância de raízes por volume de solo, sem alterar a qualidade morfológica do sistema radicular, nem aprofundá-lo. Os sistemas radiculares das cultivares avaliadas são mais abundantes e apresentam superfície e comprimento específico maiores entre plantas adjacentes, seguidas das posições afastadas a 0,25 e 0,50 m do caule. A proporção de raízes na camada de 0,1 m de profundidade é maior que a na de 0,4 m, para todos os espaçamentos. A variação no espaçamento entre plantas na linha altera a morfologia do sistema radicular do café arábica.Termos para indexação: Coffea arabica, adensamento, programa Safira, sistema radicular. Root morphology of Arabica coffee cultivars subjected to different spatial arrangementsAbstract -The objective of this work was to evaluate the morphological responses of the root system of four Arabica coffee cultivars subjected to different spatial arrangements. The adopted plant spacings were 0.40, 0.50, 0.60, 0.70, and 0.80 m between plants within rows, maintaining 3.8 m constant between rows. At 27, 35, and 39 months after transplanting, samples of soil+roots were collected at three surface positions in relation to plant stems and at three depths. Roots were washed, colored, digitalized, and processed with the Safira software. The Tupi RN IAC 1669-13 cultivar showed a root system with superior morphological traits related to the absorption of nutrients and water, in comparison to those of the Catuaí Vermelho IAC 144, Catuaí Amarelo IAC 62, and Catuaí Amarelo IAC 32 cultivars, for all tested spatial arrangements. The reduction in spacing increases the amount of total root per soil volume unit, without affecting the morphological quality of the root system, nor deepening it. The root systems of the evaluated cultivars are more abundant and show higher surface and specific length between adjacent plants, followed by the 0.25 and 0.50 m positions away from the coffee stem. The proportion of roots at the 0.1 m layer is higher than at the 0.4 m layer, for all plant spacings. Changes in spacings between plants within lines affect the morphology of Arabica coffee root system.

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Produção e desenvolvimento radicular de plantas de café 'Conilon' propagadas por sementes e por estacas

Cited by 19 publications

References 17 publications

Wet bulb and Conilon coffee root distribution under drip irrigation

Wet bulb and Conilon coffee root distribution under drip irrigation

Research Article Genetic diversity among 16 genotypes of Coffea arabica in the Brazilian cerrado.

Morfologia radicular de cultivares de café arábica submetidas a diferentes arranjos espaciais

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