Research Article

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Nitrogen via solid urea is easily lost by volatilization and leaching. This element, due to its easy absorption and translocation, shows the possibility of foliar supply. Knowledge of the dynamics of urea dissolved in water and foliar spraying on oats can improve use efficiency. The bjective of this study was to assess the urea dlution time under non-linearity of ... more

C. .L.Peter; J.A.G. Da Silva; I.R. Carvalho; D.A. Magano; G.M. Conceição; O. Alessi; J.A. da Rosa; C.M. Babeski; P. Diel; M.V.R. Sarturi; L.B. Heusner; N.G. Zardin
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Avena sativa; Biometrics; correlation and path; food; Sustainability

Analysis of the relationship of oat grain chemical components with productivity can yield information that determines crop production strategies. The market values high protein grain, but production and other nutritional components may be affected in the effort to increase protein levels. The objective of this study was to determine how the dynamics of the ... more

R.D. Mantai; J.A.G. Da Silva; O.B. Scremin; I.R. Carvalho; D.A. Magano; J.M. Fachinetto; F. Lautenchleger; J.A. da Rosa; C.L. Peter; J.D. Berlezi; C.M. Babeski
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Avena sativa; Coverage; Dose; Seeding; Sustainability; Time

ABSTRACT. The productive performance of oats depends on proper management of nitrogen, a highly mobile element and of reduced efficiency in unfavorable cultivation conditions, generating productivity reduction with environmental pollution. This study aimed to find the most efficient and sustainable management of nitrogen in oats based on the ... more

D.C. Reginatto; J.A.G. Da Silva; I.R. Carvalho; D.A. Magano; O.A. Lucchese; N.C.F. Basso; J. Sgarbossa; V. Pansera; M.S. Jung; C.M. Babeski; L.B. Heusner; N.G. Zardin
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Air temperature; Avena sativa; Drechslera avenae; Multiple regression; Necrotic leaf area; Puccinia coronata; Rainfall

The aggressiveness of fungal diseases in oats compromises grain yield. Although fungicides are effective for control, there is a need for productivity with food and environmental safety. Thus, we seek cultivars responsive to more sustainable management. The objective of this study was to identify oat cultivars that are more responsive to reduced fungicide use and a ... more

A.H. Screminn; J.A.G. Da Silva; N.C.F. Basso; I.R. Carvalho; D.A. Magano; deF. Colet; J.A. da Rosa; C.L. Peter; M.S. Jung; M.G.L. Meotti; W.J.A. Bandeira; L.L. Schünemann
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Agaricus blazei; Aromatic compounds; Copper; Laccase; Nitrogen

Laccases are polyphenol oxidases produced by many fungi and have many applications in textile, food and beverage, and pulp and paper industries. Laccase production can be induced using aromatic or phenolic compounds that mostly affect the transcription of laccase-encoding genes. In this study, we analyzed laccase and biomass production by Agaricus blazei in the presence of ... more

J.S. Valle; L.P.S. Vandenberghe; A.C.C. Oliveira; M.F. Tavares; G.A. Linde; N.B. Colauto; C.R. Soccol
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Chrysanthemum; Nitrate transporter; Nitrogen

In this study, the nitrate transporter gene CmNRT1 was isolated from the chrysanthemum variety ‘Nannongxuefeng’. The full-length cDNA contains an open reading frame of 1761 bp encoding 587 residues. Using qRT-PCR, we found that CmNRT1 was induced by 10 mM NO3- in roots and shoots. Two Arabidopsis thaliana transgenic plants expressing ... more

C.S. Gu; X.X. Zhang; S.M. Chen; T. Li; Y. Chen; J.F. Jiang; F.D. Chen; C.S. Gu; X.X. Zhang; S.M. Chen; T. Li; Y. Chen; J.F. Jiang; F.D. Chen; C.S. Gu; X.X. Zhang; S.M. Chen; T. Li; Y. Chen; J.F. Jiang; F.D. Chen
05/31/2017
Azospirillum brasilense; Expressed sequence tags; Genotype; Glutamate-Ammonia Ligase; Nitrate reductase; Nitrogen; Plant Proteins; Zea mays

The relative quantitative real-time expression of two expressed sequence tags (ESTs) codifying for key enzymes in nitrogen metabolism in maize, nitrate reductase (ZmNR), and glutamine synthetase (ZmGln1-3) was performed for genotypes inoculated with Azospirillum brasilense. Two commercial single-cross hybrids (AG7098 and 2B707) and two experimental synthetic varieties (V2 and V4) were raised ... more

L. Pereira-Defilippi; E.M. Pereira; F.M. Silva; G.V. Moro
12/12/2023
Glycine max; Grain yield; Nitrogen; Plant nutrition; Seed vigor

Nitrogen use in soybeans is still not fully taken advantage of. Increased use of nitrogen fertilizer couldnot only increase agricultural productivity, but also strengthen food security in the context of the increasing global need for food. The objective of this study was to evaluate the performance and seed quality of soybeans supplemented with nitrogen. The ... more

J.R. Bagateli; J.J. Franco; G.E. Meneghello; R.M. Bagateli; I.R. Carvalho; M.V. Loro; H.C.F. Almeida
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Evaluation; Predation of chelonians; Sustainability; Testudines

The chelonians have historically played an important role as a natural resource, the Indians being the first consumers of their meat, eggs, fat and viscera. These animals have been hunted, fished and their eggs harvested for many generations in the Amazon. Currently, 60% of the species are considered threatened by trafficking of wild animals, predatory hunting and ... more

Z.M. Teixeira; V.S. Vasconcelos; T.L. Silva
07/29/2021
Meteorological condition; Regression; Succession systems; Sustainability; Triticum aestivum

The management of nitrogen in wheat based on biological and environmental indicators can ensure productivity with a reduction in environmental impact. The objective of the study was to develop a more sustainable management of nitrogen use in wheat, considering the dose as a fraction of the total supply based on an estimate of the maximum technical and economic ... more

A.P.B. Trautmann; J.A.G. Da Silva; J.A. da Rosa; I.R. Carvalho; F. Lautenchleger; C.F. Colet; M.S. Jung; E. Warmbier; N.C.F. Basso; A.K. Polanczyk; C.V. Argenta

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