Physiological and biochemical responses of sugarcane varieties to salt stress.

Vista sencilla de ítem
dc.contributorWELSON LIMA SIMOES, CPATSA; DANIELA SIQUEIRA COELHO; ALESSANDRO CARLOS MESQUITA; MARCELO CALGARO, CPATSA; JUCICLÉIA SOARES DA SILVA.
dc.creatorSIMOES, W. L.
dc.creatorCOELHO, D. S.
dc.creatorMESQUITA, A. C.
dc.creatorCALGARO, M.
dc.creatorSILVA, J. S.
dc.date2020-01-20T18:06:59Z
dc.date2020-01-20T18:06:59Z
dc.date2020-01-20
dc.date2019
dc.date2020-01-20T18:06:59Z
dc.date.accessioned2026-07-07T05:55:40Z
dc.descriptionSalt stress is one of the most limiting environmental factors for agricultural yields in the Semiarid region of Brazil. Considering the expansion of areas with sugarcane crops in this region, the selection of more adapted plant varieties to this environment is an essential tool for the sustainability of this activity. Thus, the objective of the present work was to evaluate the physiological and biochemical responses of plants of ten sugarcane varieties to salt stress. The experiment was conducted in a greenhouse using a randomized block design, in a 6×10 factorial arrangement consisting of six salinity levels in the irrigation water (0, 1.0, 2.0, 4.0, 6.0, and 8.0 dS m-1) and ten sugarcane varieties (VAT 90212, RB 72454, RB 867515, Q 124, RB 961003, RB 957508, SP 791011, RB 835089, RB 92579, and SP 943206), with three replications. Salt waters were applied every two days to increase the soil moisture to field capacity and promote leaching. The gas exchange, chlorophyll content, and total soluble and reducing sugars of leaves were evaluated at 90 days after planting. The highest chlorophyll contents were found in plants of the varieties Q 124, RB 96103, RB 835089, and SP 943206. The effect of salinity on the sugarcane plants affected their leaf gas exchanges and total soluble and reducing sugar contents, denoting the adaptability of plants to the stress conditions evaluated. The decrease of stomatal conductance resulted in decreases in photosynthetic rates in plants of all sugarcane varieties evaluated, except for RB 867515
dc.identifierRevista Caatinga, v. 32, n. 4, p. 1069?1076, 2019.
dc.identifier1983-2125
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1118998
dc.identifier10.1590/1983-21252019v32n423rc
dc.identifier.urihttp://hdl.handle.net/123456789/502754
dc.languageeng
dc.rightsopenAccess
dc.subjectEstresse salino
dc.subjectTrocas gasosas
dc.subjectSalinidade
dc.subjectCana de Açúcar
dc.subjectSaccharum Officinarum
dc.subjectCarboidrato
dc.subjectSugarcane
dc.titlePhysiological and biochemical responses of sugarcane varieties to salt stress.
dc.typeArtigo de periódico

Archivos

Colecciones

Embrapa Semi-Árido (CPATSA)