Consulta: creatorFacets:"Riede,Carlos Roberto"
Registros recuperados: 5
Data/hora: 05/06/2024 04:21:05

Analysis of preharvest sprouting in three Brazilian wheat populations
Provedor de dados: 86
Autores: Bassoi,Manoel Carlos; Flintham,John; Riede,Carlos Roberto.
The objective of this work was to evaluate the possibility of obtaining recombinant inbred wheat lines more resistant to preharvest sprouting, independently of colour genes, in three red-grained Brazilian wheat populations. The results showed statistical significance among lines within all populations, which presented a normal distribution and transgressive segregation for preharvest sprouting. The normal distribution of the lines from all red-grained populations suggests that sprouting, excluding the genes expressing seed coat pigmentation, is, probably, controlled by many genes. These findings also indicate that it may be possible to improve resistance to preharvest sprouting, independently of the colour genes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Triticum aestivum; Dormancy; Grain colour; Genes; Genetic variation.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000400006

Parcelamento da adubação nitrogenada no desempenho produtivo de genótipos de trigo
Provedor de dados: 124
Autores: Costa,Luciana; Zucareli,Claudemir; Riede,Carlos Roberto.
Objetivou-se avaliar o desempenho produtivo de genótipos de trigo com diferentes qualidades industriais em resposta às proporções de parcelamento da adubação nitrogenada em cobertura. Foram avaliados seis genótipos de trigo, sendo estes: IPR 136 e LD 052114 (melhorador), IPR 130 e IPR 144 (pão) e BRS Louro e CD 105 (básico). A adubação nitrogenada em cobertura foi realizada na dose fixa de 80 kg ha-1 na forma de ureia, com cinco formas de parcelamento como segue: P1- dose total aplicada no perfilhamento aos 20 DAE (dias após a emergência); P2 - ¼ no emborrachamento e o restante aos 20 DAE; P3 - ½ aos 20 DAE + ½ no emborrachamento; P4 - ¼ aos 20 DAE e o restante no emborrachamento e P5 - dose total de N aplicada no emborrachamento. As proporções de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trigo; Cultivos de cobertura; Plantas; Efeito de Nitrogênio.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902013000200002

Timing and growing conditions of nitrogen topdressing influence the grain yield and protein content of four wheat cultivars
Provedor de dados: 53
Autores: Silva,Raphael Rossi; Zucareli,Claudemir; Fonseca,Cristina de Batista; Riede,Carlos Roberto; Benin,Giovani; Gazola,Diego.
ABSTRACT The application of an adequate rate and splitting of nitrogen is essential for wheat grain yield and protein content. The aim of this work was to adjust nitrogen management approaches regarding agronomic performance and protein content of wheat cultivars in various environments. Field experiments were conducted under no-tillage system on soybean mulch during the 2011 and 2012 growing seasons in Londrina and Pato Branco regions. The experimental design was a randomized block in split plot with four replicates. Four wheat cultivars (IPR Catuara TM, BRS Gaivota, Quartzo, CD 120) were tested with six nitrogen (N) management forms. Were evaluated: number of ears per unit area (NEA); plant height (PH); thousand-kernel weight (TKW); test weight (TW);...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ammonium sulphate grain yield nitrogen Triticum aestivum L; Urea.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000300361

Reaction of wheat genotypes to soil aluminum differential saturations
Provedor de dados: 52
Autores: Costa,Antonio; Campos,Luís Alberto Cogrossi; Riede,Carlos Roberto.
Ten wheat (Triticum aestivum) genotypes were evaluated in microplots with aluminum saturation of 0, 15, 30 and 45%, during 1994, in Londrina, Paraná, Brazil. The soil was a Distrofic Red Latosol (Typic Haplorthox), with 65% saturation of aluminum, amended with dolomitic lime. Variables evaluated included grain yield and yield components: ears.m-2, grains.ear-1 and the weight of 1000 grains. Genotypes differed in yield and yield components. Increasing aluminum saturation decreased yield, ears.m-2 and grains.ear-1, but did not alter thousand kernel weight. The genotypes reacted differently in relation to the toxic soil aluminum. Anahuac and IAPAR 29 were aluminum sensitive; OCEPAR 16, Trigo BR 18, and Trigo BR 23 were moderately sensitive; IAPAR 6, IAPAR 53,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Triticum aestivum; Aluminum tolerance; Aluminum soil saturation; Yield components.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000100004

Selection for grain yield and quality in segregating generations of wheat
Provedor de dados: 52
Autores: Andrade,Alessandro Ramos de; Riede,Carlos Roberto; Scholz,Maria Brígida dos Santos; Destro,Deonisio; Fonseca,Ines Cristina de Batista.
The objective of the work was to combine simultaneous selection for grain yield and technological quality in elite segregating populations of wheat developed by the breeding program of IAPAR. Thirteen populations were chosen according to their potentiality of genetic variability in the F2 generation of the 1997 crop season. One hundred heads were selected from each population and sown as F3 head-rows in the following season. Visual selection of individual head-rows or lines was done for yield potential and maturity. Seeds of the selected lines were evaluated for Sedimentation Values as well as Protein Content. The populations were identified as C1 to C13, representing the different crosses. The number of F2:3 lines selected within populations varied from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Triticum aestivum; Technological quality; Grain yield; Segregating generations.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000200010