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Caracterização de forrageiras quanto à tolerância ao estresse hídrico
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Fundação Universidade Federal de Mato Grosso do Sul
Abstract
Water scarcity is the main abiotic factor responsible for low productivity; however, climate change will
have impacts on society and biodiversity, causing a decrease in agricultural production, an increase in
the vectors of various diseases and the extinction of animals and plants. In this work the aims to was
evaluate two cultivars and seven genotypes of Megathyrsus maximus (Jacq.) B.K.Simon &
S.W.L.Jacobs for water stress tolerance, through two different methodologies: suspension of irrigation
for 18 consecutive days and by applying Polyethylene Glycol 6000 (PEG-6000) for 12 consecutive
days. At the moment of suppression of the water supply and the multiple days of three of interruption of
the irrigation and the multiple days of four for solution with PEG-6000 the chlorophyll content in the
leaves was estimated, noting the number of leaves and the height of the stem. The rate of
photosynthesis, transpiration, stomatal conductance and leaf temperature were obtained with an infrared
gas analyzer and also, we determined the shoot biomass after stress and after rehydration. The data were
submitted to ANOVA and were standardized by the decostand command. The cultivars BRS Tamani
and Massai and the genotypes, PM19, PM20 and PM21 were the most tolerant, height and stomatal
conductance were not significant in relation to time and cultivar time interaction. The highlight are the
cultivars P. maximum cv. Massai and P. maximum cv. BRS Tamani, which although affected by water
stress, obtained 100% regrowth and retained all their metabolic activities, and it can be inferred that they
relocated their nutrients to the roots in order to wait for better survival conditions. In the second
methodology, however, PM44 was highlighted, followed by cultivars Massai and BRS Tamani.
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Basu, S.; Ramegowda, V.; Kumar, A.; Pereira, A., 2016. Plant adaptation to drought stress. [version 1; referees: 3
approved]. F1000Research, 5 (F1000 Faculty Rev), 1554;
Blum, A., 1989. Osmotic adjustment and growth of barley genotypes under drought stress. Crop Science, 29, 230-233.;
Blum, A., 2017. Osmotic adjustment is a prime drought stress adaptive engine in support of plant production. Plant Cell
Environment. 40, 1, 4–10;
Bray, E. A., 1997. Plant Responses to water deficit. Trends in Plant Science., 2, 2, 48-53;
Burin, P. C., 2018. Produtividade e valor nutricional de cinco forrageiras implantadas em diferentes modalidades de
cultivo. Tese (Doutorado em Agronomia, Produção Vegetal). Faculdade de Ciências Agrárias, Universidade Federal da
Grande Dourados, Dourados, MS, f 93;
Casteñada-Castro, O.; Gómez-Merino, F. C.; Trejo-Téllez, L. I.; Pastelín-Solano, M. C., 2015. Osmotic Stress induced by
Polyethylene-Glycol alters Macronutrient Concentrationsb in Sugarcane (Saccharum spp.) Plants in vitro. Agrociencia.
49, 8, 859-873;
Cecato, U.. Machado, A.O., Martins, E.N., Pereira, L.A.F.,Barbosa, M.A.A.L. de F., Santos, G.T. dos, 2000. Avaliação
da Produção e de Algumas Características da Rebrota de Cultivares e Acessos de Panicum maximum Jacq. sob duas
Alturas de Corte. Revista Brasileira de Zootecnia. 29, 3, 660-668;
Costa, N. de L., Jank, L., Fogaça, F.H. dos S., Magalhães, J.A., Bendahan, A.B., Santos, F.J. de S., Rodrigues, B.H.N.,
2018. Rendimento de forragem, composição química e morfogênese de Megathyrsus maximus cv. Tanzânia-1 sob
frequências de desfolhação. PUBVET. 12, 4, 67, 1-7;
Gomes-Cadenas, A., Vives, V., Zandalinas, S.I., Manzi, M., Sanchez-Perez, A.M., Perez-Clemente, R.M.; Arbona, V.,
2015. Abscisic Acid: a versatile Phytohormone in Plant Signaling and Beyond. Current Protein & Peptide Science. 16, 5;
Hoagland, D.R.; Arnon, D.I, 1950. The water culture method for growing plants without soils. Berkeley: California
Agricultural Experimental Station, 347p.;
INMET, 2018. Estações Automáticas: gráficos. Disponível em:
<http://www.inmet.gov.br/portal/index.php?r=home/page&page=rede_estacoes_auto_graf>. Acesso em: 06.Set.2018;
IPCC, 2014. Climate Change 2014: Impacts, Adaptation, and Vulnerability. Disponível em:
<https://www.ipcc.ch/report/ar5/wg2/>. Acesso em: 30.Ago.2017;
Kramer, P.J., 1988. Changing concepts regarding plant water relations: opinion. Plant Cell Environment. 115, 7, 565–
568;
Larcher, W., 2006. Physiological Plant Ecology. 3rd ed, Springer press, London, 322 pp.;
Lagerwerff, J.V., Ogata, G., Eagle, H.E., 1961. Control of osmotic pressure of culture solutions with polyethylene glycol.
Science. 133, 3463, 1486-1487;
Masoabi M., Lloyd, J., Kossmann, J., Van Der Vyver, C., 2017. Ethyl Methanesulfonate Mutagenesis and In Vitro
Polyethylene Glycol Selection for Drought Tolerance in Sugarcane (Saccharum spp.). Sugar Tech. 20, 1, 50–59;
Ming, D. F.; Pei, Z. F.; Naeem; M. S., Gong, H. J.; Zhou, W. J., 2012. Silicon Alleviates PEG-Induced Water-Deficit
Stress in Upland Rice Seedlings by Enhancing Osmotic Adjustment. J. Agronomy & Crop Science., 198, 14-26;
Mohammadikhani, N.; Heidari, R., 2008. Water stress induced by Polyethylene glycol 6000 and Sodium Chloride in two
maize cultivars. Pakistan Journal of Biological Sciences. 11, n. 01, p. 92-97;
Monfared, S.H., 2016. The Effects of Metabolism in Response to Water Stress of three Poa species under Germinator and
Greenhouse Conditions. IIOABJ. 7, 2, 376–382;
Nelson, S.K., Oliver, M.J., 2017. A Soil-Plate based Pipeline for Assessing Cereal Root Growth in Response to
Polyethylene Glycol (PEG)-Induced Water Deficit Stress. Frontiers in Plant Science., 8, 1272;
Pereira, L.E.T.; Herling, V.R., 2016. A dinâmica do crescimento de plantas forrageiras e o manejo das pastagens.
Disponível em: <http://www.prp.usp.br/wp-content/uploads/sites/134/2014/05/Apostila-A-din%C3%A2mica-docrescimento-de-plantas-forrageiras-e-o-manejo-das-pastagens.pdf>. Acesso em 09.Jan.2016;
Pezzopane, C.G., Santos, P.M., Cruz, P.G., Altoé, J., Ribeiro, F.A., Valle, C.B., 2014. Estresse por deficiência hídrica em
genótipos de Brachiaria brizantha. Ciência Rural, Online. Disponível em:
<http://www.scielo.br/pdf/cr/2014nahead/0103-8478-cr-00-00-cr20130915.pdf>. Acesso em: 11.Jan.2016;
Pimentel, C., 1998. Metabolismo de carbono na agricultura tropical. Seropédica: Edur, 150 p.;
Nepumoceno, A. L.; Oosterhuis, D. M.; Stewart, J. W., 1998. Physiological responses of cotton leaves and roots to water
deficit induced by polyethylene glycol. Environmental and Experimental Botany. 40, 29–41;
REFLORA. 2017. Poaceae in Flora do Brasil 2020 em construção. Jardim Botânico do Rio de Janeiro. Disponível em:
<http://reflora.jbrj.gov.br/reflora/floradobrasil/FB86786>. Acesso em: 26.Jul.2017;
Ryan, R.G., 1991. Effects of Climate Change on Plant Respiration. Ecological Applications. 01, 02, 157-167;
Robin, A. H. K.; Uddim, M. J.; Bayazid, K. N., 2015. Polyethylene Glycol (PEG)-Treated Hydroponic Culture Reduces
Length and Diameter of Root Hairs of Wheat VarietiesAgronomy. 5, 506-518;
Salati, E.; Santos, A.A. dos; Nobre, C. 2002. As mudanças climáticas globais e seus efeitos nos ecossistemas brasileiros.
Disponível em: <www.comciencia.br/reportagens/clima/clima14.htm> Acesso em: 25 Jul. 2017;
Sánchez, E., Gil, S., Azcón-Bieto, J., Nogués, S., 2016. The response of Arundo donax L. (C3) and Panicum virgatum
(C4) to different stresses. Biomass and Bioenergy. 85, 335–345;
Santos, P.M., Cruz, P.G. da, Araujo, L.C. de, Pezzopane, J.R.M., Valle, C.B. do, Pezzopane, C. de G., 2013. Response
mechanisms of Brachiaria brizantha cultivars to water deficit stress. Brazilian Journal of Animal Science. 42, 767-773;
Santos, R.F., Carlesso, R., 1998. Déficit hídrico e os Processos Morfológico e Fisiológico das plantas. Revista Brasileira
de Engenharia Agrícola e Ambiental. 52, 3, 287-294;
Seixas, A.A.; Gomes, V.M.; Serafim, V.F.; Viana, W.A., 2015. Déficit Hídrico em Plantas Forrageiras – revisão de
literatura. Revista Científica Eletrônica de Medicina Veterinária. 8, 1-14;
Shao, H.; Chu, L.; Jaleel, C. A.; Zhao, C., 2008. Water-deficit stress-induced anatomical changes in higher plants. C. R.
Biologies., 331, 215-225;
Souza, S. M. L.; Jank, L.; Laura, V. A., 2018a. Evaluación preliminar de cuatro cultivares de Megathyrsus maximus
(Jacq.) B. K. Simon & S. W. L. Jacobs al estrés hídrico en solución nutritiva. In: REUNIÓN ARGENTINA DE
FISIOLOGÍA VEGETAL, 32.; CONGRESO LATINOAMERICANO DE FISIOLOGÍA VEGETAL, XVI., Córdoba,
Argentina. Conocimiento para el desarrollo sustentable, equitativo y soberano: libro de resumenes... Córdoba, Argentina:
Sociedad Argentina de Fisiología Vegetal - SAFV, 2018.;
Souza, S. M. L.; Jank, L.; Silva, M. F.; Laura, V. A., 2018b. Avaliação de dois genótipos e duas cultivares de
Megathyrsus maximus ao estresse hídrico sob polietileno glicol 6000 (peg-6000). In: JORNADA CIENTÍFICA
EMBRAPA GADO DE CORTE, 14., 2018, Campo Grande - MS. [Resumos dos trabalhos]. Brasília, DF, Embrapa, 115
p. (Embrapa Gado de Corte. Documentos, 258).;
Sutcliffe, J.F., 1980. As Plantas e a Água. São Paulo: EPU, Ed. Da Universidade de São Paulo, Temas para Biologia, 23,
126 p.;
Turner, N.C., 2018. Turgor maintenance by osmotic adjustment: 40 years of progress. Journal of Experimental Botany.
69, 13, 3223–3233;
Vialet-Chanbrand, S.; Dreyer, E.; Brendel, O., 2013. Performance of a new dynamic model for predicting diurnal time
courses of stomatal conductance at the leaf level. Plant Cell Environ. 36, 1529–1546;
Villela, F.A.; Filho, L.D.; Sequeira, E.L., 1991. Tabela de Potencial Osmótico em função da concentração de Polietileno
Glicol 6000 e da Temperatura. Revista Pesquisa Agropecuária Brasileira. 26, 1957-1968;
Zandalinas, S.I.; Mittler, R.; Balfagón, D.; Arbona, V.; Gómez-Cadenas, A., 2017. Plant adaptations to the combination
of drought and high temperatures. Physiologia Plantarum. 162, 01, 2-12;
Oksanen, J.; Blanchet, F. G.; Friendly, M.; Kindt, R.; Legendre, P.; McGlinn, D.; Minchin, P.R.; O'Hara, R. B.; Simpson,
G.L.; Solymos, Stevens, P.M.H.H.; Szoecs, E.; Wagner, H. vegan: Community Ecology Package. R package version 2.4-
4, 2017. Available online: <https://CRAN.R-project.org/package=vegan>. (accessed on 20 Set 2018).
R Core Team. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna,
Austria, 2018. Available online:<https://www.R-project.org/>. (accessed on 20 Out 2018).
Wickham, H. ggplot2: Elegant Graphics for Data Analysis. Springer-Verlag New York, 2009.
Wang, W.; Zong, Y.; Zhang, S., 2016. Hydraulic regulation strategies for whole-plant water balance of two maize inbred
lines differing in drought resistance under short-term osmotic stress. Acta. Physiol. Plant. 38, 1.