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Master's Dissertation
DOI
https://doi.org/10.11606/D.87.2012.tde-26112012-090832
Document
Author
Full name
Simone Ichiwaki
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2012
Supervisor
Committee
Barbosa, Heloiza Ramos (President)
Buckeridge, Marcos Silveira
Salatino, Maria Luiza Faria
Title in Portuguese
Efeitos da inoculação de Enterobacter sp. ICB481 sobre o crescimento e acúmulo de nitrogênio em plântulas de cana-de-açúcar (Saccharum sp.) submetidas a fertilização orgânica e convencional.
Keywords in Portuguese
Enterobacter
Adubação
Bactérias
Cana-de-açúcar
Fertilizantes
Nitrogênio
Abstract in Portuguese
A interação da bactéria diazotrófica Enterobacter sp.ICB481 com plântulas de cana-de-açúcar foi avaliada em culturas com adubação orgânica ou convencional. As plântulas foram separadas em grupos: orgânico, convencional e sem adubação (inoculadas e não inoculadas com a bactéria). Após 60 dias, os fertilizantes orgânico e convencional atuaram de forma semelhante nos parâmetros de crescimento: comprimentos foliar, volume radicular, massas fresca e seca em folhas, concentrações de nitrato, amônio, aminoácidos, proteínas, açúcares e teor de clorofila. O parâmetro de massa fresca radicular foi maior no grupo orgânico. A inoculação de Enterobacter promoveu maior volume e massa fresca radicular nos grupos orgânico e convencional. No grupo sem adubação, a inoculação aumentou todos os parâmetros de crescimento, clorofila total, incremento protéico e conteúdo de nitrogênio.
Title in English
Effects of the inoculation of Enterobacter sp. ICB481 on the growth and nitrogen content of sugarcane plantlets submitted to organic and conventional fertilization.
Keywords in English
Enterobacter
Bacteria
Fertilization
Fertilizers
Nitrogen
Sugarcane
Abstract in English
The interaction of diazotrophic bacterium Enterobacter sp. ICB481 in sugarcane plantlets was evaluated in cultures with organic or conventional fertilization. Plantlets were separated into groups: organic, conventional and no fertilization (inoculated or not with the bacterium). After 60 days, the organic and conventional fertilizers presented similar growth parameters for: leaf length, root volume, fresh and dried matter of leaves, concentrations of nitrate, ammonium, amino acids, proteins, sugars and chlorophyll content. The parameter of fresh matter was higher in the organic group. The inoculation of Enterobacter promoted greater root volume and fresh matter in organic and conventional groups. In the group without fertilizer, inoculation increased all growth parameters, chlorophyll, protein and nitrogen content.
 
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Publishing Date
2013-02-19
 
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