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Title: Growth and foliar contents of Na+ e C1- in genotypes of forage sorghum irrigated with salinized waters.
Authors: COELHO, D. S.
SOUZA, M. A. de
SANTOS, J. E. de
Affiliation: DANIELA SIQUEIRA COELHO, Instituto do Meio Ambiente e Recursos Hídricos, Juazeiro, BA; WELSON LIMA SIMOES, CPATSA; ALESSANDRA MONTEIRO SALVIANO, CPATSA; MOISÉS ALVES DE SOUZA, Universidade Federal de Lavras; JAIR ANDRADE LIMA, Estagário da Embrapa Semiárido; JOSÉ EZEQUIEL DE SANTOS, Universidade de Pernambuco.
Date Issued: 2018
Citation: Irriga, Botucatu, v. 23, n. 1, p. 108-120, jan./mar. 2018.
Description: Plant efficiency in developing specific mechanisms to survive under salt stress can vary significantly among genotypes, which implies different responses in growth and yield. The aim of this study was to evaluate the salt tolerance of forage sorghum genotypes by analysis of growth variables correlated with the levels of Na+ and Cl- accumulated in the leaves. The research was carried out in a greenhouse belonging to the Brazilian Agricultural Research Corporation (EMBRAPA) ? Semiarid, in Petrolina, Pernambuco state, Brazil. The treatments were arranged in a randomized block design with factorial arrangement 10x6 with ten genotypes (?F305?, ?BRS 655?, ?BRS 610?, ?Volumax?, ?1,015,045?, ?1,016,005?, ?1,016,009?, ?1,016,013?, ?1,016,015? and ?1,016. 031?), salt solutions with six levels of electrical conductivity (0, 2.5, 5.0, 7.5, 10 and 12.5 dS m-1) and three replications. The variables evaluated were dry mass and water content of the shoots and roots, plant height, stern diameter, leaf area and foliar concentration of Na+ and Cl-. It was found that the growth of forage sorghum genotypes is similarly affected due to the increase of Na+ and Cl- foliar contents. The growth of forage sorghum is reduced by 50% when the plants are submitted to the application of saline solution with electrical conductivity of 8 dS m-1.
Thesagro: Sorgo
Área Foliar
Sorghum Bicolor
Adubação Foliar
NAL Thesaurus: Sorghum bicolor subsp. bicolor
Salt stress
Dry matter content
Keywords: Massa seca
Estresse salino
ISSN: 1808-3765
DOI: 10.15809/irriga.2018v23n1p108-120
Type of Material: Artigo de periódico
Access: openAccess
Appears in Collections:Artigo em periódico indexado (CPATSA)

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