Tolerance of arabica coffee cultivars for aluminum in nutritive solution

Macedo, Célia Maria Peixoto de; Lopes, José Carlos; Amaral, José Augusto Teixeira do; Fonseca, Aymbiré Francisco Almeida da

doi:10.1590/s1516-89132011000500005

Cited by 4 publications

(4 citation statements)

References 15 publications

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“…The symptoms of Al toxicity observed in genotypes of Jatropha were similar to those observed by Rosado et al (2012), coinciding also with reports of other crops such as oats (Silva et al, 2007;Crestani et al, 2009), coffee (Braccini et al, 2000;Macedo et al 2011), maize (Martins et al 1999) and soybean (Custódio et al 2002). …”

Section: Resultssupporting

confidence: 89%

“…Differential tolerance levels for stress with Al has also been shown in other species, such as oats (Silva et al, 2007;Crestani et al, 2009), coffee (Macedo et al, 2011) and maize (Martins et al, 1999). According to Martins et al (1999), it is possible that the susceptibility is the dominant feature (additive and polygenic) over the Al tolerance, which would make it more difficult to keep the phenotypic stability of tolerant genotypes.…”

Section: Resultsmentioning

confidence: 99%

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Selection of genotypes of Jatropha curcas L. for aluminium tolerance using the solution-paper method

Martins

Lopes

Laviola

et al. 2013

Idesia

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The study objective was to determinate the concentration of aluminum that allow to distinguish genotypes of Jatropha for tolerance to this element, using the solution-paper method. For this study, seeds of four genotypes of Jatropha, were germinated at different Al concentrations (0, 15, 40, 80 and 120 mg L -1 ). After 14 days, the root length was measured for all treatments. It was observed that there are different tolerance levels for the genotypes. The root length decreased exponentially with the increase of the Al concentration. The solution-paper method allows the selection of genotypes of Jatropha in relation to aluminum tolerance and the concentration of 40 mg L -1 of Al is recommended to discriminate the tolerance of genotypes to this element.Key words: Jatropha curcas, mineral nutrition, toxicity, genetic variability. Al (0, 15, 40, 80 RESUMEN El objetivo de la investigación fue evaluar el efecto de la concentración del aluminio en solución que mejor diferencia la tolerancia al aluminio en genotipos de Jatropha, utilizando el método papel-solución. Semillas de cuatro genotipos diferentes de Jatropha (CNPAE-248, CNPAE-301,CNPAE-308 y CNPAE-144) fueron germinadas en diferentes concentraciones de

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Selection of genotypes of Jatropha curcas L. for aluminium tolerance using the solution-paper method

Martins

Lopes

Laviola

et al. 2013

Idesia

Self Cite

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“…Alguns autores têm avaliado a resposta de grande variedade de plantas expostas ao Al +3 (CRUZ et al, 2011;MACEDO et al, 2011), entretanto, poucos têm usado abordagens com caracterização bioquímica sobre o estresse ocasionado por esse elemento. Avaliações das concentrações de diversos compostos mostram que alguns metabólitos não foram afetados pela presença de Al +3 nas espécies de Urochloa estudadas.…”

Section: Resultsunclassified

Efeito do alumínio sobre compostos nitrogenados em Urochloa spp.

Souza¹,

Camargos

Aguiar³

2014

Biotemas

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ResumoA superfície terrestre apresenta, em sua composição, aproximadamente 7% de alumínio (Al), na forma de óxidos de alumínio ou aluminossilicatos, entretanto, sua disponibilidade é extremamente dependente do pH do solo. O cerrado é um bioma que apresenta solos com pH baixo e possui grande quantidade de Al +3 disponível; dessa forma, a produção vegetal pode se tornar limitada. Os vegetais possuem mecanismo para tolerar quantidades excessivas de Al +3 no solo; um dos mecanismos utilizados para esse propósito é a exsudação de ácidos orgânicos, que são capazes de formar complexos com o Al +3 , e, assim, ele se torna indisponível para as plantas. Uma vez disponível, o Al +3 pode afetar o metabolismo de nitrogênio (N), levando a perdas na produção. Portanto, este estudo teve por objetivo avaliar o efeito do Al +3 sobre compostos relacionados ao metabolismo de N em três espécies do gênero Urochloa (U. brizantha, U. decumbens e U. humiducola). O delineamento experimental foi inteiramente casualizado em esquema fatorial 2 x 3 (com e sem Al +3 e 3 espécies de Urochloa); a dose de Al AbstractAluminum effect on nitrogenous compounds in Urochloa spp. Earth's surface has, in its composition, around 7% of aluminum (Al), in the form of aluminum oxides or aluminosilicates, however, its availability is greatly dependent on soil pH. Cerrado is a biome presenting low pH soils and it has high amounts of Al +3 available; thus, plant production may become limited. Plants have mechanism to tolerate excessive amounts of Al +3 in soil; one of the mechanisms used for this purpose is the exudation of organic acids, which are able to form complexes with Al +3 , and, thus, it becomes unavailable to plants. Once

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“…More recently, the effect of Al 3+ on the seedlings of four coffee varieties grown in nutrient solutions was evaluated, and it was determined that, at least in the initial growth stages, the IAPAR 59 and Catuai amarelo IAC 62 varieties were tolerant to the effects of the acidic conditions, while the Oeiras variety showed intermediate tolerance and the Obatá IAC 1669-20 variety showed sensitivity to aluminum (Macedo et al, 2011).…”

Section: Soil Propertiesmentioning

confidence: 99%

Identification of acid-tolerant coffee genotypes in a coffee germplasm collection of Colombia

Acuña-Zornosa¹,

Sadeghian²

2020

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One of the limitations of coffee production in many regions of Colombia is the soil acidity. According to historical soil chemical analysis records, more than 50% of coffee farms have pH values below 5.0. Because acid-tolerant coffee varieties are not available, farmers use calcareous additives to correct the problem, which incurs associated labor and input costs. The objective of this work was to identify acid-tolerant genotypes of Coffea arabica. For two contrasting soils in the coffee-growing area of Colombia (Andisol and Entisol), the effect of soil acidity on the growth of 20 genotypes of Coffea arabica during the seedling stage was evaluated. The genotypes were wild accessions that make up the Colombian Coffee Germplasm Collection and the Castillo ® Naranjal Variety, used as commercial material. Six months after the seedlings were transplanted into soils treated with or without acidity correction additives, the weight of the dry matter of the roots, stems and leaves was recorded. Later, the acid-tolerant genotypes were identified by means of the quadrant method and the tolerance index. The Timor Hybrid and Rume Sudan genotypes were identified as tolerant of the acidity of the two soil types. These genotypes could be used as progenitors in a coffee breeding program leading to a commercial coffee variety tolerant to soil acidity.

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Tolerance of arabica coffee cultivars for aluminum in nutritive solution

Abstract: ABSTRACT

Cited by 4 publications

References 15 publications

Selection of genotypes of Jatropha curcas L. for aluminium tolerance using the solution-paper method

Selection of genotypes of Jatropha curcas L. for aluminium tolerance using the solution-paper method

Efeito do alumínio sobre compostos nitrogenados em Urochloa spp.

Identification of acid-tolerant coffee genotypes in a coffee germplasm collection of Colombia

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