Publicações - ciências agrárias
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Aline Aparecida dos Santos;
Jorge L Moretti de Souza;
Stefanie Lais Kreutz Rosa
HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES,
v. 66,
n. 16,
p. 1-13,
2021
Palavra-chave:
evapotranspiração;
Modelo Matemático;
Componentes hídricas;
ciclo hidrológico
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Engenharia Agrícola; Engenharia de Água e Solo
resumo ...
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SOUSA, ROMAILDO SANTOS DE;
ANDRADE, ALAN SULATO DE;
Masson, Maria Lucia
Palavra-chave:
Biopolymers;
bleaching;
Nanotechnology;
chemical process;
Lignocellulosic;
Biomass
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Engenharia de Alimentos;
Engenharias; Engenharia Química; Bioprocessos;
CIENCIAS_AGRARIAS; Ciência e Tecnologia de Alimentos; nanotecnologia
resumo ...
Abstract This study aimed to evaluate the process of cellulose extraction from yacon stem using...
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SEABRA, JÉSSICA CARVALHO;
João Ricardo Dittrich;
VALE, MARCOS MARTINEZ DO
Palavra-chave:
Management techniques;
Stereotypies;
data mining
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Zootecnia; Produção Animal; Criação de Animais;
CIENCIAS_AGRARIAS; Zootecnia; Ecologia dos Animais Domésticos e Etologia
resumo ...
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SEABRA, JÉSSICA CARVALHO;
DITTRICH, JOÃO RICARDO;
Marcos Martinez do Vale
Palavra-chave:
data mining;
Equine nutrition;
Management techniques;
Stable;
Stereotypies
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Tecnologia de Alimentos;
CIENCIAS_AGRARIAS; Zootecnia; Bem-estar; Análise de som;
CIENCIAS_AGRARIAS; Zootecnia; Produção Animal; Criação de Animais
resumo ...
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FLORES JUNIOR, PAULO CESAR;
ISHIBASHI, VANESSA;
JORGE LUIS MONTEIRO DE MATOS;
MARTINEZ, DIEGO TYSZKA;
HIGA, ANTONIO RIOYEI
Palavra-chave:
genetic parameters;
REML/BLUP;
JUVENILE AGE
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Tecnologia de Alimentos;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Silvicultura; Genética e Melhoramento Florestal
resumo ...
(pt)
Forest species breeding programs require a long period-of-time for plants to reach the proper age to enable selecting superior genotypes, which is a critical factor in selection processes. Thus, the aims of the current study are to estimate genetic parameters in juvenile and adult plants (6, 10 and 20 years) in order to investigate genetic correlations between variables at different ages and at certain ages; as well as to determine whether it is possible performing efficient early selection in juvenile plants. The test was implemented in 1997; it comprised 120 progenies and followed a randomized block design, with five repetitions - linear plots comprised 5 plants at 2.5 m x 2.5 m spacing. DBH (cm), H (m) and VOL (m³) of all tested subjects were measured at the age of 6, 10 and 20 years. Variance components, genetic parameters, as well as genetic correlations between variables and between ages were estimated in Selegen REML/BLUP® software. Genetic parameter estimates have shown superiority at 10 years, in comparison to that estimated at 6 and 20 years. Variable ‘DBH’ has shown high genetic correlation to height (H) and volume (VOL), whereas DBH x VOL have shown high genetic correlation (0.98) in 10-year-old plants. With respect to genetic correlation between ages, 10-year-old plants have shown moderate correlation to 6- and 20-year-old plants. Early selection is indicated for 10-year-old plants, in 20-year cycles, since plants at this age have shown higher selection efficiency to predict gains in comparison to adult plants.
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CONSALTER, RANGEL;
MOTTA, ANTONIO CARLOS VARGAS;
BARBOSA, JULIERME ZIMMER;
Fabiane Machado Vezzani;
RUBILAR, RAFAEL ALEJANDRO;
PRIOR, STEPHEN A.;
NISGOSKI, SILVANA;
BASSACO, MARCOS VINICIUS MARTINS
Palavra-chave:
ciclagem biogeoquímica de nutrientes;
atributos químicos do solo
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Agronomia; Ciência do Solo; Fertilidade do Solo e Adubação
resumo ...
Brazil has extensive areas planted with Pinus taeda L. primarily in southern areas with poor soil fertility and nutritional management. Identifying optimal management practices can be difficult since forest floor litter, along with concomitant roots, may impact tree nutrition by interacting with fertilizer/lime applications. Seeking to evaluate this interaction, a nutrient omission experiment with seven treatments was designed to evaluate mid-rotation fertilizer/lime application to a P. taeda stand in southern Brazil. The seven treatments were: complete (N, P, K, B, Zn, Cu, Mo, and lime as a Ca and Mg source); NPK omission; micronutrient omission; K omission; Zn omission; lime omission; and control. Treatments were applied when the stand was five and seven years old, followed by harvest at twelve years. Pinus taeda responded positively, with commercial volume gains of 100% (60 to 122 m3 ha−1) when N and P were applied. Application of these nutrients also enhanced volume of logs in the 23–35-cm-diameter log class. No responses to K, lime (Ca and Mg), or micronutrient (Zn, Cu, B and Mo) amendments were observed. Nutrients and lime increased total litter accumulation, especially under omission of K. Roots were found in fragmented and humified forest floor layers, and omission of K enhanced total root mass (Mg ha−1), specific root length (m g−1), root length (km ha−1), and relative root mass (Mg Mg−1 of litter). Significant gains in P. taeda productivity on low fertility oxisols can be attained if the correct nutrients are applied at mid-rotation of these short-rotation forest systems.
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Valdecir Constantino;
Motta, Antonio Carlos Vargas;
Eloá Moura Araújo;
Flavio Zanette;
Julierme Zimmer Barbosa;
GUILHERME QUARESMA PEDREIRA
Palavra-chave:
Araucaria angustifolia;
Análise foliar;
adubação mineral
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Silvicultura; Nutrição Florestal;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Silvicultura; Solos Florestais
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Abstract Fertilization can be a sustainable management practice for the maintenance of the...
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REZNICK, JOÃO P. K.;
Volnei Pauletti;
BARTH, GABRIEL
Palavra-chave:
Triticum aestivum;
Vegetation index;
wheat genotype;
wheat flour quality;
precision agriculture
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Agronomia; Ciência do Solo; Nutrição Mineral de Plantas;
CIENCIAS_AGRARIAS; Agronomia; Ciência do Solo; Manejo e Conservação do Solo
resumo ...
HIGHLIGHTS: The active optical sensor was sensitive to the variation of nitrogen fertilization....
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KOVALSYKI, BRUNA;
Josamar Gomes da Silva Junior;
João Francisco Labres dos santos;
Tetto, Alexandre França;
Ronaldo Viana Soares;
Marta Regina Barrotto do Carmo;
Antonio Carlos Batista
BIODIVERSIDADE,
v. 20,
n. 2,
p. 125-136,
2021
Palavra-chave:
forest fires;
protected areas;
fire management;
fire regime
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Conservação da Natureza; Controle de incêndios florestais;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Silvicultura; Fisiologia Florestal;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Conservação da Natureza; Recuperação de Areas Degradadas
resumo ...
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Antonio Carlos Batista;
DANIELA BIONDI;
Angeline Martini
FLORESTA (ONLINE) (CURITIBA),
v. 51,
n. 1,
p. 192-200,
2021
Palavra-chave:
Interface urbano-rural (WUI);
espécies nativas;
epirradiador
resumo ...
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