Growth, morphological, metabolic and photosynthetic responses of clones of eucalyptus to glyphosate

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUnited States Department of Agriculture/NPURU - Natural Product Utilization Research Unit-
Autor(es): dc.creatorCerveira Junior, Wilson Roberto [UNESP]-
Autor(es): dc.creatorCosta, Yanna Karoline Santos da [UNESP]-
Autor(es): dc.creatorCarbonari, Caio Antonio [UNESP]-
Autor(es): dc.creatorDuke, Stephen Oscar-
Autor(es): dc.creatorAlves, Pedro Luis da Costa Aguiar [UNESP]-
Autor(es): dc.creatorCarvalho, Leonardo Bianco de [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:34:25Z-
Data de disponibilização: dc.date.available2022-02-22T00:34:25Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-08-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.foreco.2020.118218-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/201752-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/201752-
Descrição: dc.descriptionWe hypothesized that eucalyptus has clone-dependent responses to glyphosate, and such differential responses might be associated with morphological, metabolic and/or photosynthetic changes. Experiments were carried out under controlled conditions of temperature, photoperiod and nutrition, focusing on evaluating the response of Eucalyptus × urograndis clones (GG100 and I144) to increasing doses of glyphosate (0–1440 g ha−1 acid equivalent – AE) and to test whether a differential plant response would be associated to alterations in leaf morphology, plant and herbicide metabolism and photosynthesis. There was a significant reduction of plant height, stem diameter, number of leaves, leaf area and shoot dry mass caused by low doses of glyphosate (≤180 g AE ha−1, while a strong plant growth reduction (~60%) was caused by glyphosate field doses (≥720 g AE ha−1), in both clones. The GG100 clone was more susceptible to glyphosate field doses, while the I144 clone was more susceptible to glyphosate low doses. The stomatal index increased by 31% and the nervure thickness was reduced by 17% at 30 days after application of glyphosate at 180 g AE ha−1 (DAA) in the GG100 clone. Traces of glyphosate (<28 g mg−1 of dry mass) were found in leaf tissues of both clones at 1 DAA. Shikimic acid accumulated earlier (after 1 DAA) and in greater amounts (90%) in the I144 clone. Aminomethylphosphonic acid (AMPA) was not detected in either treated clone. The CO2 assimilation rate, transpiration rate and stomatal conductance were reduced earlier (after 1 DAA) and more intensely (65%) in the I144 clone. The clone-dependent response is apparently associated with changes in plant metabolism related to glyphosate mode of action and gas exchange response differences between the clones.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionSão Paulo State University (Unesp) School of Agricultural and Veterinarian Sciences-
Descrição: dc.descriptionSão Paulo State University (Unesp) School of Agriculture-
Descrição: dc.descriptionUnited States Department of Agriculture/NPURU - Natural Product Utilization Research Unit-
Descrição: dc.descriptionSão Paulo State University (Unesp) School of Agricultural and Veterinarian Sciences-
Descrição: dc.descriptionSão Paulo State University (Unesp) School of Agriculture-
Idioma: dc.languageen-
Relação: dc.relationForest Ecology and Management-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectDose-response-
Palavras-chave: dc.subjectEucalyptus urograndis-
Palavras-chave: dc.subjectHerbicide-
Palavras-chave: dc.subjectN-(phosphonomethyl)-glycine-
Palavras-chave: dc.subjectPlant metabolism-
Palavras-chave: dc.subjectPlant physiology-
Título: dc.titleGrowth, morphological, metabolic and photosynthetic responses of clones of eucalyptus to glyphosate-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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