Resumo O objetivo deste trabalho foi avaliar a influência de doses nitrogênio em cobertura e das palhadas milho, milho consorciado com braquiária sobre produtividade qualidade grãos do feijoeiro. experimento realizado área irrigada, no cultivo inverno, após cinco anos da implantação sistema plantio direto, Latossolo Vermelho eutroférrico textura argilosa. Utilizou-se o delineamento blocos ao acaso parcelas subdivididas três repetições. As foram constituídas por palha braquiária; enquanto as...

ABSTRACT The no-tillage system can change the nitrogen dynamics in soil, being necessary to adjust fertilization order provide this nutrient during critical phases of common bean growth. This study aimed at evaluating agronomic and qualitative traits grown under different straw types, as a function topdressing splitting. A randomized block experimental design, split-plot arrangement, with four replications, was used. plots consisted three types (maize, maize intercropped brachiaria...

Selections via the mixed model and multivariate analysis approach can be powerful tools for selecting cultivars in plant breeding programs.Therefore, this study aimed to compare use of models, traditional phenotypic selection identify superior maize (Zea mays L.) genotypes.Seventy-one (71) Topcrosses three commercial were evaluated using these methods.Plant height, ear placement, stalk lodging breakage, grain yield evaluated.There was a difference between methods, as with models based on...

Abstract Maize intercropping with forage crops and N under no‐tillage management have led to discrepant results regarding the impact on crop yield. Therefore, understanding various production systems is necessary assist producers in decision making. The aim of this experiment was evaluate whether maize ( Zea mays L.) Urochloa ruziziensis (R. Germ. C.M. Evrard) Crins promotes differences agronomic performance if split top‐dressing fertilization previous (common bean [ Phaseolus vulgaris L.])...

The high nitrogen nutrient requirement of maize is a major production constraint in areas that have low availability soil nitrogen. A 2-year field experiment was conducted to characterize open-pollinated varieties by identifying possible sources variability targeting N environments. Twelve experimental and two checks, AL Avaré Ipanema, were cultivated under levels evaluated for chlorophyll content index, lodging, prolificacy grain yield. results indicate the applied resulted differences...

The current methodologies used to evaluate environmental similarities do not allow the simultaneous analysis and categorization of environments. objective this study was verify possibility using Bayesian network (BN) detect between environments for plant height, lodging, grain yield in maize. Thirteen experimental varieties were grown six measure traits yield. BN constructed each trait, Hill-Climbing algorithm. Results compared with simple part genotypes x interaction, clustering by Lin's...

Breeding new maize varieties that take up more N from the soil and increase fixation is a crucial source of combined nitrogen in agricultural systems. Thus, this study aimed to select superior parental lines efficient use Azospirillum brasilense. Three experiments were conducted two seasons aiming allocate all diallel hybrids three different conditions. The performed RCB design with replications, was analyzed using mixed model approach. general combining ability efficiency applied best line....

Nitrogen (N) is the most absorbed nutrient by common bean, and availability of this element changes according to crop residues present on soil surface. The aim study was assess effect top-dressed doses N residue (maize alone, maize intercropped with brachiaria alone) performance irrigated bean. experiment conducted in a split-plot arrangement, where plots consisted brachiaria, alone subplots applied bean (0, 40, 80, 120, 160 kg ha-1). Brachiaria provided full coverage C/N ratio higher than...

Os consumidores de feijão são exigentes quanto às características grão, demandando baixo tempo cozimento, alta capacidade hidratação e qualidade proteica. Entretanto esses atributos durante o armazenamento podem ser alterados, levando à perda qualidade. O objetivo deste trabalho foi avaliar os qualitativos cultivares feijoeiro do grupo comercial carioca armazenamento. delineamento utilizado inteiramente casualizado, em esquema fatorial 13x3, constituído por (Pérola, BRSMG Majestoso, BRS...

New bean cultivars, in addition to having high productivity, should meet requirements regarding the physiological attributes of seeds, maintaining them during storage, minimising their deterioration and guaranteeing producer a crop that is quickly uniformly established. The aim this study was evaluate seeds thirteen cultivars (Phaseolus vulgaris L.) from carioca commercial group, produced winterspring harvest North state São Paulo, at two different times: after eighth month storage....

The choice of a cultivar can significantly affect grain yield and quality common bean crops in production systems. objective this work was to evaluate the effect cultivars carioca commercial group on system, assess correlation between their variables. experiment carried out Southeast region Brazil, winter-spring crop season. A randomized block design used, with 13 treatments four replications per treatment. were consisted (Pérola, BRSMG-Majestoso, BRS-Estilo, BRSMG-Madrepérola, IPR-Campos...