Influência do intervalo entre cortes sobre a produção de biomassa de duas espécies de capim limão

May, A.; Bovi, Odair Alves; Maia, Nílson Borlina; Moraes, Andrea Ra de; Mario, Marcelo de

doi:10.1590/s0102-05362008000300017

Cited by 12 publications

(9 citation statements)

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“…Intervalos maiores entre colheitas podem prejudicar a qualidade do produto devido ao decréscimo linear do acúmulo de matéria seca (May et al, 2008). Além disso, com o aumento da severidade da doença, a aparência da matéria prima será prejudicada pelo aumento dos sintomas da doença.…”

Section: Testes Em Campo Para a Inibição Da Germinação De Esporos De unclassified

Controle da ferrugem das folhas do capim-limão [Cymbopogon citratus (DC: ) Stapf] com produtos naturais

Lorenzetti

Conceição

Sacramento

et al. 2012

Rev. bras. plantas med.

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RESUMO:Cymbopogon citratus (DC.) Stapf é uma planta medicinal pertencente a família Poaceae, perene, importante para a indústria farmacêutica e alimentícia devido ao óleo essencial que produz. Um problema limitante para a produção comercial é a ferrugem, doença cujo agente etiológico é o fungo Puccinia nakanishikii Dietel. O presente trabalho objetivou avaliar a ação de produtos naturais no controle da doença in vitro e in vivo. Para os testes in vitro, empregaram-se os seguintes produtos sobre a germinação de esporos do patógeno: óleos essenciais de eucalipto, palma-rosa, cravo-da-índia, menta, limão, citronela e mil-folhas; extrato pirolenhoso de eucalipto e mentol cristalizado, em diferentes concentrações. Para os testes de campo foram selecionados quatro produtos, o óleo de citronela e de eucalipto, o extrato pirolenhoso, e o mentol. In vitro, todos os agentes mostraram-se promissores no controle do patógeno. Quando em condições in vivo, sob alta severidade da doença no ato da avaliação, os produtos testados foram capazes de reduzir a severidade da doença em comparação com a testemunha. O controle da doença com os agentes naturais variou de 38% (extrato pirolenhoso) a 61%(óleo essencial de eucalipto). Palavras-chave: controle alternativo de doenças de plantas, óleos essenciais, Puccinia nakanishikiiABSTRACT: Rust control in leaves of lemongrass [Cymbopogon citratus (DC.) Stapf] by using natural products. Cymbopogon citratus (DC.) Stapf is a medicinal plant that belongs to the Poaceae family; it is perennial and important for the pharmaceutical and food industry due to the essential oil it produces. A limiting problem for commercial production is rust, a disease that has as etiological agent the fungus Puccinia nakanishikii Dietel. The present study aimed to evaluate the action of natural products on the disease control, in vitro and in vivo. For the in vitro tests, the following products were employed on the germination of the pathogen spores: essential oils from eucalyptus, palmarosa, clove, peppermint, lemon, citronella and yarrow, pyroligneous extract from eucalyptus, and crystallized menthol, at different concentrations. Four products were selected for the tests in the field: citronella and eucalyptus oil, pyroligneous extract and menthol. In vitro, all agents showed promising in controlling the pathogen. Under in vivo conditions and great severity of the disease at evaluation, the tested products were capable of reducing the disease severity when compared to the control. The disease control by the natural products varied from 38% (pyroligneous extract) to 61% (eucalyptus essential oil).

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Section: Testes Em Campo Para a Inibição Da Germinação De Esporos De unclassified

Controle da ferrugem das folhas do capim-limão [Cymbopogon citratus (DC: ) Stapf] com produtos naturais

Lorenzetti

Conceição

Sacramento

et al. 2012

Rev. bras. plantas med.

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“…Cymbopogon flexuosus (lemon grass) and Lippia rotundifolia (chá-de-pedestre) essential oils can be used as alternative performance enhancers due to their in vitro antimicrobial action, and they can promote diet stability (Assis et al, 2017;Azevedo et al, 2016;Souza et al, 2015). Cymbopogon flexuosus, also known as grass balm, is native to Asia (May et al, 2008). The major components present in lemon grass oil are myrcene, geraniol, and citral (Simões et al, 2010), with the latter being the most important.…”

Section: Introductionmentioning

confidence: 99%

Blood parameters and hepatic histopathology of broilers fed rations supplemented with essential oils

et al. 2019

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This study aimed to evaluate the hematological profile, hepatic function, and histopathology of mixed-sex broilers fed rations supplemented with microencapsulated essential oils from Cymbopogon flexuosus (lemon grass) and Lippia rotundifolia (chá-de-pedestre). One hundred and fifty Cobb chicks were housed in cages from 1 to 42 days of age in a completely randomized design, with six replicates with five chickens in each of five treatments (150 total chicks): basal diet without antibiotic growth promoter (negative control), diet with enramicina and salinomycin (positive control), diet with lemon grass essential oil, diet with L. rotundifolia essential oil, and diet with a mixture of lemon grass and L. rotundifolia essential oils. Mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH) were significantly lower in untreated broilers (negative control group). Gender was not associated with erythrogram values, but aspartate aminotransferase activity (AST) was higher in females. Gamma-glutamyl transferase (GGT) was higher in chicks in the group that received rations with lemon grass oil. Broilers that received L. rotundifolia oil developed more hepatic lesions, although no effect of sex was observed related to the lesion score. Biliary hyperplasia and fibroplasias were observed in all groups, with higher histopathology scores in broilers that received diets containing L. rotundifolia oil. Mixed-sex broilers fed rations supplemented with lemon grass and L. rotundifolia essential oils have normal complete blood counts and unspecific hepatic lesions and are characterized by lipidosis, hyperplasia of the bile ducts, and fibroplasia.

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“…Cymbopogon flexuosus (Nees ex Steud) J. F. Watson is commonly known as East Indian lemon grass, Cochin grass, and Malabar grass, being a medicinal species from South Asia, Southeast Asia, and Australia (May et al, 2008;Marigowda et al, 2016). China and Indonesia are the main producing countries of C. flexuosus essential oil, however, significant plant yields also occur in Guatemala.…”

Section: Introductionmentioning

confidence: 99%

“…China and Indonesia are the main producing countries of C. flexuosus essential oil, however, significant plant yields also occur in Guatemala. With relevant commercial value and more productive than Cymbopogon citratus, the species is used in flavors, fragrances, toiletries, cosmetics, soaps, detergents, and pharmaceutical products (May et al, 2008;Ganjewala & Luthra, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Lemon grass essential oil was reported to have sedative, digestive, antirheumatic, soothing, antifebrile, carminative, analgesic, antispasmodic, and antimicrobial activities (May et al, 2008;Meena et al, 2016). Cytotoxic and anticancer potentials were reported by Marigowda et al (2016) and by Sharma et al (2009), thus being a good candidate for innovative therapeutic strategies against cancer.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of Cymbopogon flexuosus Biomass and Essential Oil Production With Organic Manures

Lopes¹,

Bertolucci²,

Carvalho³

et al. 2019

JAS

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Cymbopogon flexuosus is a medicinal species with relevant commercial value and widely used in flavors, fragrances, toiletries, cosmetics, soaps, detergents, and pharmaceutical products. The objective of this study was evaluate the effects of different doses and sources of two manures and one compost on plant growth, leaf nutrient accumulation, content, yield, and chemical composition of the essential oil. The sources were cattle manure, quail manure, and organic compost applied in four doses and control treatment. The species increased the growth and productions of secondary metabolites by use the manures and organic compost. The highest weight gain was obtained with fertilization between 300 and 450 g pot-1 of quail manure, but the yield of essential oil in the doses from 150 to 300 g pot-1. Overall, lemon grass plants fertilized with quail manure accumulated greater concentrations of nutrients in leaf tissue than cattle manure and compost. The neral content in the essential oil was increased with the use of quail manure compared to compost and cattle manure. The results from this study demonstrated that dose and source can alter dry weight, leaf nutrients accumulation, and essential oil content and yield.

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Influência do intervalo entre cortes sobre a produção de biomassa de duas espécies de capim limão

Cited by 12 publications

References 1 publication

Controle da ferrugem das folhas do capim-limão [Cymbopogon citratus (DC: ) Stapf] com produtos naturais

Controle da ferrugem das folhas do capim-limão [Cymbopogon citratus (DC: ) Stapf] com produtos naturais

Blood parameters and hepatic histopathology of broilers fed rations supplemented with essential oils

Improvement of Cymbopogon flexuosus Biomass and Essential Oil Production With Organic Manures

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