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Campo DCValorIdioma
dc.creatorGarcia, Fernando Henrique Silva-
dc.creatorMendonça, Ane Marcela das Chagas-
dc.creatorRodrigues, Marcelo-
dc.creatorMatias, Filipe Inácio-
dc.creatorSilva Filho, Mário Pereira da-
dc.creatorSantos, Hugo Rafael Bentzen-
dc.creatorTaffner, Julian-
dc.creatorBarbosa, João Paulo Rodrigues Alves Delfino-
dc.date.accessioned2020-04-28T18:11:20Z-
dc.date.available2020-04-28T18:11:20Z-
dc.date.issued2020-01-
dc.identifier.citationGARCIA, F. H. S. et al. Water deficit tolerance in sugarcane is dependent on the accumulation of sugar in the leaf. Annals of Applied Biology, [S.I.], v. 176, n. 1, p. 65-74, Jan. 2020.pt_BR
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/full/10.1111/aab.12559pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/40408-
dc.description.abstractSugarcane productivity is severely affected by the occurrence of water deficit in the field, causing inhibition of growth and sugar production. Evaluating physiological responses of sugarcane under water deficit conditions is essential to understand physiological variables responsible for reaching homeostasis. Therefore, we analysed physiological traits of two sugarcane genotypes, RB835486 (Tolerant) and RB855453 (Susceptible), under water deficit conditions: well‐watered (WW‐Control), water deficit (WD) and rewatered (RW). The physiological response was evaluated using linear regression and multivariate analysis. Some characteristics such as water potential in leaves, photosynthesis, chlorophyll fluorescence, chlorophyll index, sucrose and starch contents did not show differences between the genotypes under water deficit conditions. However, the tolerant genotype showed increased reducing sugars content in the leaves, whereas the susceptible genotype had increased non‐photochemical quenching (qN). After rewatering, the susceptible sugarcane genotype showed higher electron transport rate (ETR) and efficiency of PSII (Y). Multivariate analysis revealed that non‐photochemical quenching and reducing sugars in the leaves were physiological variables responsible for reaching homestasis under water deficit conditions. Therefore, the reducing sugars concentration should be considered a physiological variable responsible for the adjustment made by the tolerant sugarcane genotype when submitted to water deficit.pt_BR
dc.languageenpt_BR
dc.publisherWiley Online Librarypt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceAnnals of Applied Biologypt_BR
dc.subjectAbiotic stresspt_BR
dc.subjectMultivariate analysispt_BR
dc.subjectPhotosynthesispt_BR
dc.subjectRewateringpt_BR
dc.subjectWater deficitpt_BR
dc.subjectEstresse abióticopt_BR
dc.subjectAnálise multivariadapt_BR
dc.subjectFotossíntesept_BR
dc.subjectDéficit hídricopt_BR
dc.subjectCana-de-açúcarpt_BR
dc.titleWater deficit tolerance in sugarcane is dependent on the accumulation of sugar in the leafpt_BR
dc.typeArtigopt_BR
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