Research Article

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Breeding; high temperature; Thermal stress; tolerance; Triticum aestivum

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Inter-relations; Triticum aestivum; Univariate and multivariate regression

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F.L. da Silva; I.R. Carvalho; V.J. Szareski; C. Troyjack; S.M. Dellagostin; F. Lautenchleger; A.B.N. Martins; H.E. Rodrigues; D. Boeno; S.M. Fachi; T. Pedó; F.A. Villela; V.Q. Souza
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I.R. Carvalho; J.A.G. Da Silva; L.L. Ferreira; V.E. Bubans; M.H. Barbosa; R.B. Mambrin; S.M. Fachi; G.G. Conte; V.Q. de Souza
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Agricultural security; Nitrogen fertilizer; Triticum aestivum

The application in a single or split dose of nitrogen in wheat affects the expression of ear components. Models that simulate these effects can help predict yield. Our objective was to identify wheat ear components that are responsive to the forms of nitrogen supply in a single versus split dose d. This was achieved by testing variables in the construction of a ... more

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C/N; Correlation and Path Analysis; N-dose; N-fraction; Triticum aestivum

Nitrogen management distinctly influences the expression and magnitude of relationships between wheat ear components and grain yield. We sought to determine the variables linked to wheat ear that are more responsive to changes in the dose and form of nitrogen supply and to determine the direct and indirect effects on grain yield by single and fractional nitrogen ... more

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Agronomic traits; Heat; Plant breeding; Plant yield; Sowing dates; Triticum aestivum

Wheat is considered a basic cereal for civilization with great economic importance for world agriculture. Currently, wheat is planted in the south, southeast and midwest regions of Brazil. Brazilian consumption of wheat will grow in the coming years due to population increase, which will require developing new cultivars for non-tradtional regions. We investigated ... more

G.H. Bevilacqua; A.P. Neto; B.H.P. Val; C.V.G. Azevedo; J.S. Sobrinho; P.H.S. Libório; WdeS. Leite; S.H. Unêda-Trevisoli
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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
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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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