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2023-02-13T12:42:27Z2023-02-13T12:42:27Z2019-06-30142e5652https://doi.org/10.5039/agraria.v14i2a56521981-0997http://hdl.handle.net/1843/49926Objetivou-se avaliar o comportamento dos acessos de alecrim-pimenta (Lippia origanoides) em diferentes níveis de saturação por base e estresse hídrico a partir dos teores de prolina livre, flavonoides totais e acúmulo de silício. O experimento consistiu de cinco acessos submetidos a níveis de saturação por base com agrossilício (0,92; 2,47; 4,0; 5,55 e 7,09 g de Si), cujas avaliações foram feitas durante a irrigação diaria e sob suspensão hídrica de 10 dias. A prolina foi obtida por meio de ácido sulfosalicílio e ninhidrina ácida, o flavonoide foi a partir de extrato metanólico e cloreto de alumínio e o silício por meio de azul-de-molibdênio. As absorbâncias foram registradas em 520 nm para a prolina, 425 nm para flavonoides e 660 nm para silício. Os resultados foram submetidos à análise de variância e de regressão a 5 % de significância. A melhor saturação por bases entre os acessos variou entre 20 a 50%. Os acessos ICA-3 e ICA-4 foram os que apresentaram a melhor produção para as duas variáveis, com capacidade de acumular até ±3,0 ?mol g-1 de prolina livre na matéria fresca e até ±250 mg RE g-1 de flavonoide na matéria seca. O acesso ICA-3 apresentou maior acúmulo de silício nas folhas. Assim, a adição de 2,17 t ha-1 de agrossilício em cultivo de Lippia origanoides, favorece a produção de metabolitos secundários sob estresse hídrico.We aimed to evaluate the behavior of the accesses of rosemary pepper (Lippia origanoides) at different levels of saturation and water stress from the level of free proline, total flavonoids and silicon accumulation. The experiment consisted of accesses submitted to saturation levels with agrosilicon (0.92; 2.47; 4.0; 5.55 e 7.09 g of Si) which were evaluated during daily irrigation and after 10 days of water suspension. The amount of proline was obtained by means of sulfosalicilic acid and acid ninhydrin, the flavonoid contents was obtained by means of metanolic extract and aluminum chloride and the silicon contents by means of molybdenum blue. The absorbances were recorded at 520 nm for proline, 425 nm for flavonoid and 660 nm for silicon. The results were submitted to analysis of variance and regression. The best dose response of silicon between the accesses was of 20 to 50 %. The ICA-3 and ICA-4were those that presented the best production for the two variables, with a capacity to accumulate up to ± 3.0 μmol g-1 of the proline in fresh matter and up to ± 250 RE g-1 of flavonoids content in dry mass. ICA-3 access presented better silicon accumulation in leaves. Thus, the addition of 2.17 t ha-1 of agrosilicic in cultivation of Lippia origanoides favors the production of secondary metabolites under water stress.porUniversidade Federal de Minas GeraisUFMGBrasilICA - INSTITUTO DE CIÊNCIAS AGRÁRIASProlinaFlavonóidesPlantas medicinaisplantas medicinaisCERRADOESTRESSE HÍDRICOfisiologia vegetalóleo essencialProlina livre e flavonoides totais de Lippia origanoides submetidos a níveis de saturação por base e estresse hídricoFree proline and total flavonoids from Lippia origanoides submitedto base saturation levels and water stressinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v14i2a5652Messulan Rodrigues MeiraErnane Ronie MartinsIvan Caldeira Almeida Alvarengainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/49926/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALProlina livre e flavonoides totais de Lippia origanoides submetidos a níveis de saturação por base e estresse hídrico.pdfProlina livre e flavonoides totais de Lippia origanoides submetidos a níveis de saturação por base e estresse hídrico.pdfapplication/pdf1297352https://repositorio.ufmg.br/bitstream/1843/49926/2/Prolina%20livre%20e%20flavonoides%20totais%20de%20Lippia%20origanoides%20submetidos%20a%20n%c3%adveis%20de%20satura%c3%a7%c3%a3o%20por%20base%20e%20estresse%20h%c3%addrico.pdf341cc560e8c68338f5e918e31e71ab57MD521843/499262023-02-13 09:42:28.12oai:repositorio.ufmg.br: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Repositório InstitucionalPUBhttps://repositorio.ufmg.br/oaiopendoar:2023-02-13T12:42:28Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false
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