Adaptive responses of millet (Pennisetum glaucum) and elephant grass (Pennisetum purpureum) at salinity
DOI:
https://doi.org/10.36560/1262019976Keywords:
Ãons, organic solutes, saline stress, grasses.Abstract
The Northeast region of Brazil is most affected by the reduction in water availability, contributing directly to the accumulation of salts at the soil surface. Therefore, this study aimed to evaluate the adaptive responses of Pennisetum glaucum and Pennisetum purpureum submitted to salinity. Seeds of two gramineous species, submitted to the saline treatment of 60 mM NaCl, were used in the nutrient solutions. K+ absorption, accumulation of organic solutes and ions were measured as tolerance indicators. The experimental design was completely randomized, in a factorial 2x2 scheme (P. glaucum and P. purpureum and two control treatments and saline stress). The soluble carbohydrate content as a response to salinity had a greater effect on P. purpureum plants grown in solution. Regard to the stress, the species that most stood out was P. purpureum, presenting a lower accumulation of salts, and increasing the carbohydrate content in the plant tissues, making the P. purpureum plants have a tolerance greater than P. glaucum.References
BASTOS, A. O.; MOREIRA, I.; FURLAN, A. C.; OLIVEIRA, G. C.; FRAGA, A. L.; SARTO, I. M. Efeitos da inclusão de nÃveis crescentes de milheto (Pennisetum glaucum (L.) R. Brown) grão na alimentação de suÃnos em crescimento e terminação. Revista Brasileira de Zootecnia, v. 35, n. 1, p. 98-103, 2006. DisponÃvel em: https://bit.ly/2KG9eRD. Acesso em: 08 mar. 2017.
DIAS, N. S.; BLANCO, F. F. Manejo da salinidade na agricultura: Estudos básicos e aplicados. Fortaleza: Instituto Nacional de Ciência e Tecnologia em Salinidade. p. 129-140, 2010.
DUBOIS, M.; GILLES, K.A.; HAMILTON, J.K.; REBERS, P.A.; SMITH, F. Colorimetric methods for determination of sugars and substances. Analytical Chemistry, v. 28, p. 350-356, 1956. DisponÃvel em: https://bit.ly/2tINr1M. Acesso em: 04 out. 2017.
FLOWERS, T. J.; LÄUCHLI, A. Sodium versus potassium: substitution and compartmentation. Encyclopedia of Plant Physiology, v. 15, p. 651-681, 1983.
GUTIERREZ, E. G.; FARIA, V. P.; SGRIGNERO, O.; OLIVEIRA, V. S. Variações diurnas no teor de carboidrato s solúveis de haste e folhas de capim napier (Pennisetum purpureum, Schum). Anais da E.S.A. "Luiz de Queiroz", v. 33, p. 267-278, 1976. DisponÃvel em: https://bit.ly/2tJ3rkb. Acesso em: 08 mar. 2017.
KERBAUY, G.B. Fisiologia vegetal. 2. ed. Guanabara Koogan, 2012. 432p.
KRAMER, P. J.; BOYER, J. S. Water Relations of Plants and Soils. London: Academic Press, 1995.
MALDONADE, I. R.; CARVALHO, P. G. B.; FERREIRA, N. A. Protocolo para determinação de açúcares redutores pelo método de Somogyi-Nelson. Comunicado Técnico, 86 (Embrapa Hortaliças). 2013. DisponÃvel em: https://bit.ly/2NdZHiM. Acesso em: 08 mar. 2017.
MILLER, G.L. Use of dinitrosalicylle acid for determination of reducing sugar. Analytical Chemistry, v.31, n. 3, p. 426-428, 1959.
MUNNS, R.; TESTER, M. Mechanisms of salinity tolerance. Annual Review of Plant Biology, v. 59, p. 651-681, 2008.
PEDROTTI, A.; CHAGAS, R.M.; RAMOS, V.C.; PRATA, A.P.do.N; LUCAS, A.A.T.; SANTOS, P.B..
PRISCO, J.T.; GOMES FILHO, E.; MIRANDA, R. de S. Fisiologia e bioquÃmica do estresse salino em plantas. In: GHEYI, H.R.; DIAS, N.S.; LACERDA, C.F. (Eds.). Manejo da salinidade na agricultura: Estudos básicos eaplicados.2.ed.INCTSal,Fortaleza,2016.DisponÃvel em: https://bit.ly/2Mgdftt. Acesso em: 10 jun. 2018. cap.12, p.163-176.
Downloads
Published
How to Cite
Issue
Section
License
The journal reserves the right to make changes to the original rules, spelling and grammatical order, in order to keep the language of worship default, respecting, however, the style of the authors. The finals will be sent to authors. Articles published are the property of Scientific Electronic Archives magazine, becoming its total or partial reprint, subject to the express authorization of the direction of the journal. The original source of publication should be retained. The originals will not be returned to the authors. Opinions expressed by authors of articles are solely your responsibility.
This journal uses the License Creative Commons Atribuição 4.0 Internacional.
1.png)
