Navegação Ciências Agrárias por Autor "Nava, Itamar Cristiano"

Resultados 1-9 de 9

    • Breeders’ work after cultivar development - the stage of recommendation 

      Federizzi, Luiz Carlos; Carbonell, Sérgio Augusto Morais; Pacheco, Marcelo Teixeira; Nava, Itamar Cristiano (2012) [Artigo de periódico]
      The development of new cultivars is the ultimate goal of breeding programs and is the result of many years of hard work and dedication of breeders and their teams. An important part of the process, often neglected by ...

    • Genetic control of agronomic traits in an oat population of recombinant lines 

      Nava, Itamar Cristiano; Duarte, Ismael Tiago de Lima; Pacheco, Marcelo Teixeira; Federizzi, Luiz Carlos (2010) [Artigo de periódico]
      Understanding the genetic control of phenotypic traits is essential to increase the efficiency of selection for adapted, high-yielding genotypes. The purpose of this study was to determine the genetic control of nine traits ...

    • Genetics and identification of markers linked to multiflorous spikelet in hexaploid oat 

      Pellizzaro, Kelly; Nava, Itamar Cristiano; Chao, Shiaoman; Pacheco, Marcelo Teixeira; Federizzi, Luiz Carlos (2016) [Artigo de periódico]
      The formation of naked grains is directly associated with the formation of multiflorous spikelets in oats. The objectives of this study were to determine the genetics of multiflorous spikelet and to identify molecular ...

    • Phenotypic variation and heritability of heading date in hexaploid oat 

      Mazurkievicz, Gustavo; Ubert, Itacir de Pierri; Krause, Felipe Augusto; Nava, Itamar Cristiano (2019) [Artigo de periódico]
      The onset of flowering is decisive to the reproductive success of plants. The objectives of this study were to characterize the phenotypic variation in heading date and estimate its heritability in segregating populations ...

    • Selectivity of Iodosulfuron-Methyl to Oat Cultivars 

      Queiroz, Andrew Rerison Silva de; Vidal, Ribas Antonio; Nava, Itamar Cristiano; Pacheco, Marcelo Teixeira; Federizzi, Luiz Carlos; Xavier, Elouize (2017) [Artigo de periódico]
      Weeds are among the main constraints to high grain yield on hexaploid oat (Avena sativa), but there are few herbicides registered for weed control on this cereal crop. The objectives of this study were to evaluate the ...

    • Tiller emission and dry mass accumulation of wheat cultivars under stress 

      Almeida, Milton Luiz de; Sangoi, Luis; Merotto Junior, Aldo; Alves, Antonio Carlos; Nava, Itamar Cristiano; Knopp, Armando Cristiano (2004) [Artigo de periódico]
      Os afilhos são importantes estruturas para as plantas de trigo (Triticum aestivum L.), porque podem contribuir para o aumento do número de espigas por área e aumentar o rendimento de grãos. Estresses na fase inicial da ...

    • Tolerância ao alumínio tóxico em germoplasma brasileiro elite de aveia 

      Herve, Cassio Barcellos; Calai, Fernanda Andressa; Nava, Itamar Cristiano; Delatorre, Carla Andrea (2013) [Artigo de periódico]
      A presença de alumínio (Al) reduz o rendimento em solos ácidos ou em áreas onde o subsolo possui pH abaixo de 5, pois limita o crescimento radicular e, consequentemente, a absorção de água e nutrientes. Genótipos elite de ...

    • URS Altiva – a new oat cultivar with high agronomic performance 

      Nava, Itamar Cristiano; Pacheco, Marcelo Teixeira; Federizzi, Luiz Carlos (2016) [Artigo de periódico]
      The oat cultivar URS Altiva, developed from the simple cross ‘UFRGS 995090-2 x URS 21’, and released by the Oat Breeding Program of the Federal University of Rio Grande do Sul (UFRGS) in 2015, presents high grain yield, ...

    • URS Brava – a new oat cultivar with partial resistance to crown rust 

      Federizzi, Luiz Carlos; Pacheco, Marcelo Teixeira; Nava, Itamar Cristiano (2015) [Artigo de periódico]
      The cultivar URS Brava, obtained from a simple cross between the line ‘UFRGS 995078-2’ and the cultivar ‘URS 21’, shows high grain yield and stability, high grain quality, desirable agronomical traits and partial resistance ...