Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1118998
Research center of Embrapa/Collection: Embrapa Semiárido - Artigo em periódico indexado (ALICE)
Date Issued: 2019
Type of Material: Artigo em periódico indexado (ALICE)
Authors: SIMOES, W. L.
COELHO, D. S.
MESQUITA, A. C.
CALGARO, M.
SILVA, J. S.
Additional Information: WELSON LIMA SIMOES, CPATSA; DANIELA SIQUEIRA COELHO; ALESSANDRO CARLOS MESQUITA; MARCELO CALGARO, CPATSA; JUCICLÉIA SOARES DA SILVA.
Title: Physiological and biochemical responses of sugarcane varieties to salt stress.
Publisher: Revista Caatinga, v. 32, n. 4, p. 1069?1076, 2019.
Language: en
Keywords: Estresse salino
Trocas gasosas
Description: Salt 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
Thesagro: Salinidade
Cana de Açúcar
Saccharum Officinarum
Carboidrato
NAL Thesaurus: Sugarcane
Data Created: 2020-01-20
ISSN: 1983-2125
Appears in Collections:Artigo em periódico indexado (CPATSA)

Files in This Item:
File Description SizeFormat 
PHYSIOLOGICALANDBIOCHEMICALRESPONSES2019.pdf592,55 kBAdobe PDFThumbnail
View/Open

FacebookTwitterDeliciousLinkedInGoogle BookmarksMySpace