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Soil water dynamics and litter production in eucalypt and native vegetation in southeastern Brazil Scientia Agricola
Silva,Paulo Henrique Muller da; Poggiani,Fabio; Lima,Walter de Paula; Libardi,Paulo Leonel.
High productivity of eucalypt plantations is the result of advances in research that have led to gradual improvements in intensive silvicultural technology. High productivity notwithstanding, eucalypt plantations remain the focus of environmental concerns. Our study aimed to compare the soil water regime, litter fall and nutrients dynamics either in a fragment of native forest or in an adjacent stand of growing eucalypt. We took field measurements during the first three years of eucalypt plantation in a sandy soil in the southeastern region of Brazil. Soil moisture and internal drainage were higher during the early stages of growth of the eucalypt stand, as compared with native vegetation. However, one and a half years after planting, available soil water...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Initial growth; Soil water flow; Soil solution; Nutrient cycling.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000500005
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Stability and adaptability for wood volume in the selection of Eucalyptus saligna in three environments PAB
Oliveira,Thiago Wendling Gonçalves de; Paula,Rinaldo Cesar de; Moraes,Mario Luiz Teixeira de; Alvares,Clayton Alcarde; Miranda,Aline Cristina; Silva,Paulo Henrique Muller da.
Abstract: The objective of this work was to evaluate the genotype x environment (GxE) interaction in open-pollinated Eucalyptus saligna progenies for simultaneous selection for greater stability and adaptability for wood volume, as well as to compare the selection strategies through combined and individual analyses in three environments. Three experiments were conducted in a randomized complete block design, with four replicates and six plants per plot, with 102 to 122 progenies. Three years after planting, survival rate and wood volume were evaluated. The genetic parameters were estimated by the maximum restricted likelihood and best linear unbiased prediction (REML/Blup) methods, and the stability and adaptability analysis was conducted using the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Forest breeding; Genetic selection; Genotype × environment interaction; REML/Blup.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000500611
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