Sustainable Management of Eremanthus erythropappus in Minas Gerais, Brazil – A Review

Araújo, Emanuel José Gomes de; Netto, Sylvio Péllico; Scolforo, José Roberto Soares; Machado, Sebastião do Amaral; Morais, Vinícius Augusto; David, Hassan Camil

doi:10.1590/2179-8087.051616

Cited by 6 publications

(5 citation statements)

References 37 publications

(44 reference statements)

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“…Although most exploitation of E. erythropappus follows sustainable management plans (Araújo et al 2018), there are limited commercial plantations typically associated with oil processing companies (Donadelli 2012). Since E. erythropappus is a Brazilian-native species with little domestication, plantation cultivation relies on seedlings with heterogeneity in growth and production.…”

Section: Introductionmentioning

confidence: 99%

“…MacLeish is a species belonging to the Asteraceae family that is naturally distributed in the southeastern Central Plateau of Brazil, encompassing the states of Goiás, Distrito Federal, Minas Gerais, São Paulo, Rio de Janeiro, and Espírito Santo (Araújo et al 2018). It is found in a variety of habitats, ranging from forest communities to open elds such as Cerrado, rupestrian elds, and high-altitude elds, where it often forms nearly pure stands referred to as "candeais" in Portuguese (Araújo et al 2018). The species is commonly exploited in rural communities, primarily for fence posts, due to its natural occurrence in Cerrado areas and high population density.…”

Section: Introductionmentioning

confidence: 99%

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Genetic parameters and promising provenances and progenies for enhanced silvicultural traits in Eremanthus erythropappus

Almeida,

Oliveira,

Santos

et al. 2023

Preprint

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Eremanthus erythropappus, a species of economic importance for α-bisabolol production, has great potential for genetic improvement. However, limited knowledge on genetic parameters during the exploitation of commercial plantations hampers its progress. In this study, we estimated genetic parameters and correlations for silvicultural traits in a provenance and progenies test of E. erythropappus at 11 years of age, aiming to identify promising provenances and families. The experiment, conducted in Baependi, involved five provenances and 116 half-sib families in a complete randomized block design. Height (H), diameter at breast height (DBH), survival (SOB), and volume (Vol) were measured, and the REML/BLUP mixed model approach was used to estimate genetic parameters. Our results revealed significant genotype-level effects for all traits, except H at the provenance level. Narrow sense heritability ranged from 0.05 (SOB) to 0.17 (DBH), suggesting a substantial influence of environmental factors. Genotypic variation surpassed that of provenances, and positive phenotypic and genotypic correlations between growth traits were observed, ranging from moderate to strong. Notably, the provenances Itabirito and Delfim Moreira exhibited outstanding performance in terms of DBH and Vol. Furthermore, families 4, 6, 37, 118, and 124 emerged as top contenders for H, DBH, and Vol. Despite low heritability, selection strategies within and between provenances and families for silvicultural traits are viable. Importantly, high phenotypic and genotypic correlations allow for indirect selection, thus streamlining assessment efforts. These findings advance our understanding of genetic parameters providing valuable insights for the genetic improvement of E. erythropappus, fostering its sustainable utilization in various industries.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Genetic parameters and promising provenances and progenies for enhanced silvicultural traits in Eremanthus erythropappus

Almeida,

Oliveira,

Santos

et al. 2023

Preprint

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“…There is also vegetation with a low number of plant species in this ecotonal region in the midst of fields and forests, such as the monodominant forests with trees of the Eremanthus genus of the Asteraceae family (Araújo 1944) (from now on Eremanthus forests). Although these forests occur abundantly in the southeastern region of Brazil (Pedralli et al, 1997) and are well studied by studies involving forest management (Scolforo et al, 2002;Araújo et al, 2018), studies involving the bird community which frequent this type of vegetation are incipient (Carrara and Faria, 2012). The management of monodominant Eremanthus erythropappus and Eremanthus incanus forests was legally instituted in the state of Minas Gerais, Brazil, in 2007(Ordinance No.…”

Section: Introductionmentioning

confidence: 99%

Do bird communities of neotropical monodominant forests have their own identity? The case of Eremanthus erythropappus forests

Moura

Mariano

Machado

et al. 2022

CERNE

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Background: Monodominant Eremanthus erythropappus forests are dispersed in neotropical montane regions of southeastern and northeastern Brazil, forming ecotonal areas among other high altitude phytophysiognomies, with no information from their fauna communities and how these communities vary between phytophysiognomies adjacent. We examined the bird community of three preserved and three managed E. erythropappus forests, and compared them two other coexisting phytophysiognomies (cloud forests and montane fields), being three samples of each, in an ecotonal region between two biodiversity hotspot domains (Cerrado and Atlantic Forest), in southeastern Brazil (1300 to 1570m high). Results:The bird community of the natural E. erythropappus forests was shared with other vegetation, while the managed E. erythropappus forests presented the lowest species richness. However, even though managed E. erythropappus forests has almost no exclusive elements, their community caused a balanced variation (a set of very similar species, only changing the representativeness), suggesting that the abundance of the registered species varies along these phytophysiognomies. Conclusion:The species associated with the natural E. erythropappus forests represented 50% of the total species, in contrast to the remaining 50% associated with the areas of cloud forests and montane fields, and their sharing behaves as an ecotonal community, since its community coincides with elements which are also present in the avifauna of the other two sampled phytophysiognomies. The composition of the avifauna from managed E. erythropappus forests was more similar to the community registered in the montane fields.

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“…A produção comercial de mudas de candeia é realizada via seminal (Davide & Melo, 2012), porém o uso de técnicas de propagação assexuada representa importante ferramenta visando principalmente a manutenção de genótipos superiores e a produção de plantas livres de doenças (Xavier et al, 2013). A propagação assexuada por enxertia, estaquia e micropropagação são técnicas alternativas para produção de mudas de candeia (Araújo et al, 2018).…”

Section: Introductionunclassified

Estabelecimento in vitro de Eremanthus incanus

et al. 2019

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Resumo -Objetivou-se avaliar procedimentos para introdução in vitro de brotações retiradas de mudas de candeia mantidas em viveiro. Para a desinfestação das brotações, testou-se tempos de imersão (5, 10, 15 e 20 min) em hipoclorito de sódio a 2,5% e a influência do uso de fungicida antes (7 e 15 dias) e após a coleta das brotações, nas concentrações de 0,5 e 1,0 g L -1 respectivamente. Para o controle da oxidação dos explantes in vitro, avaliou-se a adição de polivinilpirrolidona (PVP) e carvão ativado ao meio de cultura, ambos nas concentrações 1 e 2 g L -1 . O uso de hipoclorito de sódio permitiu a desinfestação das brotações introduzidas, porém não houve diferença significativa entre os tempos testados. A coleta de brotações 15 dias após a aplicação de fungicida nas mudas fornecedoras das brotações resultou em ausência de contaminação. A oxidação dos explantes atingiu altos níveis, mesmo na presença de PVP e carvão ativado no meio de cultura.Abstract -The objective of this study was to evaluate the procedures for introduction of shoots in vitro taken from seedlings kept in nursery. For the disinfestation of the shoots, immersion times (5, 10, 15 and 20 min) in 2.5% sodium hypochlorite were tested. We also analysed the influence of using fungicide before (7 and 15 days) and after the shoots collection, in the concentrations of 0.5 and 1.0 g L -1 respectively. In order to control the oxidation of explants in vitro, the addition of poly vinyl pyrrolidone (PVP) and activated charcoal to the culture medium, both at concentrations 1 and 2 g L -1 , were evaluated. The use of sodium hypochlorite allowed disinfestation of the introduced shoots, but there was no significant difference between the times tested. The collection of shoots 15 days after the application of fungicide in the seedlings suppliers of the shoots, allowed the absence of contamination. The oxidation of the explants reached high levels even in the presence of PVP and activated charcoal in the culture medium.

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Sustainable Management of Eremanthus erythropappus in Minas Gerais, Brazil – A Review

Cited by 6 publications

References 37 publications

Genetic parameters and promising provenances and progenies for enhanced silvicultural traits in Eremanthus erythropappus

Genetic parameters and promising provenances and progenies for enhanced silvicultural traits in Eremanthus erythropappus

Do bird communities of neotropical monodominant forests have their own identity? The case of Eremanthus erythropappus forests

Estabelecimento in vitro de Eremanthus incanus

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