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Physical Sciences and Mathematics Commons

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Plant Sciences

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Mixed models

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Full-Text Articles in Physical Sciences and Mathematics

Genotype-By-Environment Interaction In Interspecific Urochloa Hybrids Using Factor Analytic Models, R. N. Jauregui, L. M. Hernandez, J. S. Aparicio, L. J. Mazabel, J. A. Cardoso Arango, L. M. Atencio-Solano, S. L. Mejía Kerguelén, V. Castiblanco, M. Peters Jan 2024

Genotype-By-Environment Interaction In Interspecific Urochloa Hybrids Using Factor Analytic Models, R. N. Jauregui, L. M. Hernandez, J. S. Aparicio, L. J. Mazabel, J. A. Cardoso Arango, L. M. Atencio-Solano, S. L. Mejía Kerguelén, V. Castiblanco, M. Peters

IGC Proceedings (1997-2023)

Environmental factors can influence plant phenotypes shaping the expression of pastures. The ability to test genotypes in multiple environments is critical in a breeding program because important traits are heavily influenced by the environment. Nutritional quality is critical in forage breeding because it affects the rate of live weight gain in livestock as well as the quality of end products such as milk and meat. However, there is not much information on the environmental effect on agronomic and nutritional quality traits in tropical forages. For this reason, the objective of the present study was to investigate the genotype-by-environment interaction in …


Selecting New Brachiaria Humidicola Hybrids For Western Brazilian Amazon, Giselle M. L. De Assis, Cacilda B. Valle, Carlos M. S. De Andrade, Judson F. Valentim Dec 2019

Selecting New Brachiaria Humidicola Hybrids For Western Brazilian Amazon, Giselle M. L. De Assis, Cacilda B. Valle, Carlos M. S. De Andrade, Judson F. Valentim

IGC Proceedings (1997-2023)

Brachiaria humidicola is a perennial and stoloniferous forage grass, with excellent adaptation to infertile soils and waterlogging. Producers in northern Brazil have become interested in this species, especially after the degradation of large areas of lowly permeable soils sown with B. brizantha cv. Marandu, which is highly intolerant of soil waterlogging (Andrade and Valentim 2006). However, since only 3 cultivars of B. humidicola are registered in Brazil (Mapa 2013), there is a need to develop new cultivars adapted to the range of environmental conditions experienced. Recently, Embrapa Beef Cattle obtained intraspecific hybrids of B. humidicola that need to be evaluated …