Distribuição do sistema radicular de cafeeiro conilon irrigado e não irrigado

Covre, André Monzoli; Partelli, Fábio Luiz; Gontijo, Ivoney; Zucoloto, Moisés

doi:10.1590/s0100-204x2015001100003

Cited by 27 publications

(26 citation statements)

References 19 publications

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“…In opposition to the findings in this work about the distance from the plant, Covre et al (2015) observed a reduction of the surface area as the distance from the tree increases for Conilon coffee, chiefly in the region of the between line and as the depth increased.…”

Section: Resultscontrasting

confidence: 99%

“…Conilon coffee plantations have been increased in areas where water scarcity is the primary constraint on agricultural production (Araujo et al, 2011;Partelli et al, 2013;Silva et al, 2010), where irrigation is thus required (Covre et al, 2015). Among the most-commonly used irrigation systems in coffee cultivation in the northern region of Espírito Santo State, localized systems (drip irrigation, micro sprayers and micro sprinklers) and sprinkler systems (central-pivot, conventional-irrigation and fixed-head) stand out (Bonomo et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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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: Resultscontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wet bulb and Conilon coffee root distribution under drip irrigation

et al. 2018

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“…This fact was triggered by the increased availability of water and nutrients provided through fertigation concentrated on one side of the line. Similar results were obtained by Covre et al (2015), who worked with Coffea canephora fertigation and discovered that the roots were closer to the drip irrigation line.…”

Section: Discussionsupporting

confidence: 85%

Camu-camu Root Distribution under Different Nitrogen and Potassium Doses through Drip Fertigation

Melo¹,

Chagas²,

Siqueira³

et al. 2019

horts

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Camu-camu is an native species in domestication processes. Therefore, studies related to the root system are necessary to evaluate the best cultivation practices for an orchard. Two trials were conducted, one with nitrogen (N) and the other with potassium (K), at doses of 0, 40, 80, 160, and 320 kg · ha -1 . Root distribution was determined using nondestructive analyses in which two-dimensional (2D) root images were obtained from trenches under the plants' canopy. Variables included width (measured in cubic millimeters), area (measured in square millimeters), and length (measured in millimeters, and were analyzed using Safira software (version 2010, Embrapa, Brazil). To have better spatial visualization of variable distribution in the soil profile, data were analyzed using the ordinary kriging technique with the geoR software package and R software (version 2016). Both N and K doses influenced positively the camu-camu root system with regard to length, volume, and area. Better root distribution was verified with 80 kg · ha L1 N and 160 kg · ha L1 K doses. The nondestructive analysis via 2D images allowed sound characterization of root spatial distribution.Camu-camu is an native species of the Amazon Basin that attracts attention as a result of its high content of vitamin C, reaching up to 7355 mg/100 g pulp in native populations of Roraima State (Chagas et al., 2015). It is currently considered functional food, with

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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%

“…For root system analysis, roots smaller than 1 mm in diameter were used, and the data were estimated per cubic centimeter of soil (Partelli et al, 2014;Covre 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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Distribuição do sistema radicular de cafeeiro conilon irrigado e não irrigado

Cited by 27 publications

References 19 publications

Wet bulb and Conilon coffee root distribution under drip irrigation

Wet bulb and Conilon coffee root distribution under drip irrigation

Camu-camu Root Distribution under Different Nitrogen and Potassium Doses through Drip Fertigation

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

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