Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1125480
Full metadata record
DC FieldValueLanguage
dc.contributor.authorSOUZA, C. A. de
dc.contributor.authorSILVA, A. O. da
dc.contributor.authorLACERDA, C. F. de
dc.contributor.authorSILVA, E. F. de F. e
dc.contributor.authorBEZERRA, M. A.
dc.date.accessioned2020-10-14T09:14:56Z-
dc.date.available2020-10-14T09:14:56Z-
dc.date.created2020-10-13
dc.date.issued2020
dc.identifier.citationSemina. Ciências Agrárias, v. 41, n. 6, p. 2555-2570, nov./dez. 2020.
dc.identifier.issn1679-0359eng
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1125480-
dc.descriptionWater scarcity and the use of brackish water are the main challenges for agricultural development. In view of this, the present study proposes to examine physiological responses of the broadleaf-cress crop in an NFT hydroponics system according to the use of brackish water and nutrient solution circulation times. The treatments were distributed in a randomized block design with five water salinity levels (ECw: 0.6, 1.6, 2.6, 3.6 and 4.6 dS m-1) and two nutrient solution circulation times (T1 = 10 min and T2 = 15 min), totaling 10 treatments with four replicates, which resulted in 40 experimental plots. The following variables were analyzed: net photosynthetic rate, stomatal conductance, transpiration, leaf proline content, shoot moisture content, stem diameter and root length. The maximum observed photosynthetic rates were 20.9 mmol m-2 s-1 (T1) and 20.0 mmol m-2 s-1 (T2). Maximum stomatal conductance was 0.44 mol m-2 s-1, which decreased by 63.4% at the highest salinity level. The increasing ECw levels in both growing cycles evaluated reduced gas exchanges, stem diameter and root length. The nutrient solution circulation time of 15 min provided the most satisfactory results for the analyzed variables.eng
dc.language.isoeng
dc.rightsopenAccesspt_BR
dc.subjectNasturtium officinalis
dc.subjectTrocas gasosas
dc.titlePhysiological responses of watercress to brackish waters and different nutrient solution circulation times.
dc.typeArtigo de periódico
dc.subject.thesagroCondutividade Eletrica
dc.subject.thesagroAgrião
dc.subject.nalthesaurusGas exchange
dc.subject.nalthesaurusElectrical conductivity
dc.subject.nalthesaurusHydroponics
riaa.ainfo.id1125480
riaa.ainfo.lastupdate2020-10-13
dc.identifier.doihttps://doi.org/10.5433/1679-0359.2020v41n6p2555
dc.contributor.institutionCAMILA ALVES DE SOUZA, UNIVERSIDADE FEDERAL DO CEARÁ
dc.contributor.institutionALEXSANDRO OLIVEIRA DA SILVA, UNIVERSIDADE FEDERAL CEARÁeng
dc.contributor.institutionCLAUDIVAN FEITOSA DE LACERDA, UNIVERSIDADE FEDERAL CEARÁeng
dc.contributor.institutionÊNIO FARIAS DE FRANÇA E SILVA, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCOeng
dc.contributor.institutionMARLOS ALVES BEZERRA, CNPAT.eng
Appears in Collections:Artigo em periódico indexado (CNPAT)

Files in This Item:
File Description SizeFormat 
ART20082.pdf774,98 kBAdobe PDFThumbnail
View/Open
Show simple item record

FacebookTwitterDeliciousLinkedInGoogle BookmarksMySpace