Potassium effect on the morphology, nutrition and production of Carthamus tinctorius L. under water deficiency and rehydration

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dc.contributor.authorSilva, Dayane Mercia Ribeiro [UNESP]
dc.contributor.authorSantos, Jania Claudia Camilo dos [UNESP]
dc.contributor.authorChristensen, Nicholas [UNESP]
dc.contributor.authorSilva, Marcelo de Almeida [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-11-30T13:46:56Z
dc.date.available2022-11-30T13:46:56Z
dc.date.issued2022-11-01
dc.description.abstractWater deficit affects safflower development, but its effects can be mitigated by potassium fertilization. We use morphological, nutritional and production components to evaluate the effect of potassium fertilization in safflower response to water deficiency and subsequent rehydration. The experimental design used was completely randomized in a 3 x 3 factorial scheme, consisting of doses (0, 80, 160 kg ha(-1)) of potassium chloride (KCl) and water tensions in the soil, - 10 kPa (without water deficiency), - 50 kPa (moderate water deficiency) and - 70 kPa (severe water deficiency), with four repetitions. Plant height, number of leaves, number of branches, number of capitula and stem diameter were evaluated at 30 days after the imposition of water regimes and at 20 days after rehydration. The nutritional status of leaves and grains was evaluated after rehydration and at harvest, respectively, through the levels of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg). Potassium fertilization positively influenced morphology, nutrition and safflower production, and the effects were accentuated with the application of 160 kg ha(-1) of KCl without water deficiency and under moderate water deficiency. Under severe water deficiency, there was no recovery of safflower. Therefore, the dose of 160 kg ha(-1) of KCl is adequate to mitigate the effects of only moderate water deficiency in safflower.en
dc.description.affiliationSao Paulo State Univ UNESP, Sch Agr Sci, Lab Ecophysiol Appl Agr, Botucatu, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ UNESP, Sch Agr Sci, Lab Ecophysiol Appl Agr, Botucatu, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdCNPq: 305952/2018-8
dc.format.extent15
dc.identifierhttp://dx.doi.org/10.1007/s11738-022-03454-y
dc.identifier.citationActa Physiologiae Plantarum. Heidelberg: Springer Heidelberg, v. 44, n. 11, 15 p., 2022.
dc.identifier.doi10.1007/s11738-022-03454-y
dc.identifier.issn0137-5881
dc.identifier.urihttp://hdl.handle.net/11449/237862
dc.identifier.wosWOS:000853025200002
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofActa Physiologiae Plantarum
dc.sourceWeb of Science
dc.subjectSafflower
dc.subjectWater deficit
dc.subjectPotassium chloride
dc.subjectDry matter
dc.subjectProductivity
dc.titlePotassium effect on the morphology, nutrition and production of Carthamus tinctorius L. under water deficiency and rehydrationen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer

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