2019
DOI: 10.1590/0100-5405/184112
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Fitossanidade e qualidade de mudas de Eucalyptus urophylla x Eucalyptus grandis em função da aplicação de fosfito e silício

Abstract: RESUMO O setor florestal é um dos que mais contribui em termos sociais, econômicos e ambientais para o Brasil. Dentro deste setor, a eucaliptocultura pode ser apontada como a mais importante do segmento, com o plantio que representa 5,56 milhões de hectares. A primeira etapa do processo de implantação de florestas de eucaliptos é a produção de mudas, que no Brasil é feita por meio da clonagem, garantindo qualidade das mudas plantada no viveiro. Porém, um dos principais desafios em viveiros, é o controle de pat… Show more

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“…Souza et al (2016) and Bonifácio et al ( 2018) evaluated the Dickson quality index of seedlings of the guava cultivars Crioula and Paluma and observed that each unit increase in ECw decreased the DQI by 12.24 and 13.37%, respectively, while seedlings irrigated with 3.5 dS m -1 achieved values 0.14 (Crioula) and 0.17 (Paluma), lower than those of seedlings irrigated with the ECw of 0.3 dS m -1 . Even though it is an important parameter to assess the quality of seedlings, the DQI must be evaluated in conjunction with other factors, such as plant health and uniformity (SILVA et al, 2019b).…”
Section: Resultsmentioning
confidence: 99%
“…Souza et al (2016) and Bonifácio et al ( 2018) evaluated the Dickson quality index of seedlings of the guava cultivars Crioula and Paluma and observed that each unit increase in ECw decreased the DQI by 12.24 and 13.37%, respectively, while seedlings irrigated with 3.5 dS m -1 achieved values 0.14 (Crioula) and 0.17 (Paluma), lower than those of seedlings irrigated with the ECw of 0.3 dS m -1 . Even though it is an important parameter to assess the quality of seedlings, the DQI must be evaluated in conjunction with other factors, such as plant health and uniformity (SILVA et al, 2019b).…”
Section: Resultsmentioning
confidence: 99%
“…Silicon is efficient in plant development, morphology, and structure during growth, mainly in plants that accumulate this element (Silva et al 2019), as well as tolerance to water stress, saline stress, and decreased perspiration (Oliveira et al 2019;Zhang et al 2020;Zuffo and Aguilera 2020). Silicon is used as a biologically active and important element in agriculture due to leaf application in the form of potassium silicate (Coskun et al 2019), as the benefits of K 2 SiO 3 for plants are known (Debona et al 2017).…”
Section: Methodsmentioning
confidence: 99%