ABSTRACT
In order to study the diversity of related characteristics of bakery quality in 167 bread wheat genotypes (SeriM82 / Babax), along with their parents, were evaluated based on two replications. The measured traits including protein content, zeolite sediment volume, bread volume, moisture content, grain hardness, water absorption, wet gluten, gluten index, gluten elasticity, Sodium dodecyl sulfate (SDS) sedimentation volume and quantitative trait of 1000 seed weight according to standards International. After analysis of variance, the data of the experiments and the comparison of the meanings were performed using multivariate methods, cluster analysis and factor analysis, genotyping grouping and the relationship between the variables (traits). The result of variance showed that genotype was significant for protein, bread volume, wet gluten, gluten index, sedimentation of sodium dodecyl sulfate and 1000 grain weight at 1% level. Factor analysis from 11 traits examined, 4 factors with 60% variance, the first factor with variance of 27.48% including traits of protein content, zeolite sediment volume, bread volume, moisture content and water absorption, the second factor with variance of 4.8% Includes wet gluten characteristics, gluten elasticity, SDS sedimentation volume, third factor with 10.16% variance, including seed hardness and gluten index, and fourth factor with variance of 9.85% of 1000 seed weight. The results of factor coefficient evaluation indicate the importance of protein content traits, zeolite sediment volume, bread volume, moisture content and water absorption in selection of suitable genotypes for drought conditions. Based on cluster analysis (intra-group variance algorithm), genotypes were divided into eight groups, the fifth group had high baking quality and could be used in breeding programs to improve the quality of baking.
ABSTRACT
A disponibilização anual de genótipos de milho é grande, sendo necessária uma adequada avaliação desses genótipos para serem indicados para a produção de silagem. Objetivou-se avaliar as características bromatológicas da silagem produzida a partir de diferentes genótipos de milho, bem como, avaliar se a base genética ou a dureza dos grãos podem alterar a indicação de genótipos de milho para silagem. O experimento foi realizado na área experimental da Universidade Tecnológica Federal do Paraná, no delineamento blocos completos ao acaso, avaliando-se os 30 genótipos do ensaio Sul Super Precoce, organizado pela Embrapa. Avaliaram-se as características bromatológicas da silagem produzida com os diferentes genótipos, posteriormente eles foram agrupados segundo a base genética e a textura dos grãos. Verificou-se que os genótipos do ensaio Sul Super Precoce não podem ser diferenciados segundo a base genética ou a textura dos grãos para todas as características avaliadas. Porém, eles podem ser diferenciados pela matéria seca da silagem.
The annual availability of corn genotype is very large, requiring a proper assessment to be indicated for the production of silage. The aim of this study was to evaluate the chemical characteristics of corn genotypes for silage production, and assess whether the grain genetic basis or hardness may change the indication of corn cultivars for silage. The experiment was conducted at the experimental area of the Universidade Tecnológica Federal of Paraná, in the randomized block design, evaluating 30 genotypes of experiment Super Early South. It was evaluated the chemical characteristics of the genotypes and, after they were grouped according to the characteristics of genetic basis and of grain texture. It was found that the genotypes of the experiment South Super Early cannot be differentiated according to the genetic basis of grain and texture for all traits. However, they can be distinguished by the dry matter silage.
ABSTRACT
O objetivo deste trabalho foi avaliar as características bromatológicas e agronômicas dos genótipos de milho para a produção de silagem dos cultivares do Ensaio Centro Superprecoce da Rede Nacional de Genótipos de Milho, bem como avaliar se a base genética (híbridos simples, duplos, tripos, intervarietais e variedades cultivadas) ou a dureza dos grãos (duro, semiduro e dentado mole) alteram a indicação de cultivares de milho para silagem. O experimento foi realizado na área experimental da Universidade Tecnológica Federal do Paraná (campus Dois Vizinhos). Os trinta e dois genótipos avaliados foram colhidos quando os grãos encontravam-se no estádio pastoso a farináceo, ensilados em microssilos de PVC e desensilados após 53 dias. Avaliou-se a relação entre as bases genéticas, a dureza do grão e as características individuais dos genótipos quanto à aptidão para a produção de silagem. Não se verificaram diferenças significativas entre os contrastes formados entre as bases genéticas, bem como a dureza dos grãos, para os caracteres estudados. Porém, foi possível identificar genótipos superiores para a produção de silagem pela produção de matéria seca pelos genótipos AS 1555 YG, AS 1572 YG, 30A37, 30A77, 20A78, Dx 908, Dx 603, 2A550, 2B433, AL2007A, Embrapa 1F640, PRE 22T10, PREXT0109, PRE 22D11, DKB330 YG (Test).
The aim of this study was to evaluate the nutritive value and agronomic characteristics of maize genotypes for the silage production cultivars test center network of Super Early National Corn Genotypes; and to assess whether the genetic background (hybrids simple, doubles, triples, intervarieties and cultivated varieties) or the hardness of the grains (hard, soft flint and dent) may change the indication of maize cultivars for silage. The experiment was conducted at the experimental Federal Technological University of Paraná (Campus Dois Vizinhos). Thirty-two genotypes were harvested when the grains were in the dough soft dough stage, micro-ensiled in PVC silos, silage cutters and after 53 days after silage cutters. We evaluated the characteristics and chemical plant parameters of each genotype. We evaluated the relationship between genetic bases, hardness of the grain and individual characteristics of genotypes related to the production of corn silage. There was no significant difference between the contrast formed between the genetic and hardness of the grains for the characteristics studied. However, it was possible to identify superior genotypes for the production of silage whit bases in dry matter production by genotype YG AS 1555, AS 1572 YG, 30A37, 30A77, 20A78, DX 908, DX 603, 2A550, 2B433, AL2007A, EMBRAPA 1F640, PRE 22T10, PREXT0109, PRE 22D11, DKB330 YG (Test).