Aspectos quantitativos e qualitativos do grão de trigo influenciados por nitrogênio e lâminas de água

Boschini, Ana P. M.; Silva, Cícero L. da; Oliveira, Carlos Alberto da Silva; Júnior, Manuel Pereira de Oliveira; Miranda, M. Z. de; Fagioli, Marcelo

doi:10.1590/s1415-43662011000500003

Cited by 18 publications

(12 citation statements)

References 10 publications

(12 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In general, increasing N rates caused an increase in kernel protein and in flour gluten contents, as already described elsewhere (DUCSAY;LOŽEK, 2004;CAZETTA et al, 2008;BASSOI;FRANCESCHI et al, 2009;PENCKOWSKI et al, 2010;BOSCHINI et al, 2011;FOLONI, 2012). Although previously reported in the literature (CAZETTA et al, 2008;FRANCESCHI et al, 2009;PENCKOWSKI et al, 2010), an alveographic W value increase with higher N rates was not evident in the present study (Table 1).…”

Section: Resultssupporting

confidence: 75%

<b>Wheat technological quality as affected by nitrogen fertilization under a no-till system

Rodrighero¹,

Caires²,

Lopes³

et al. 2015

Acta Sci. Technol.

View full text Add to dashboard Cite

ABSTRACT. Wheat is a major cereal crop cultivated worldwide that plays a strategic role in human nutrition. Differently from several other crops, wheat's technological properties are essential for its commercialization and utilization. Its reserve protein, known as gluten, presents unique rheological properties that can enable the raw material to be used for different industrial uses, mainly for bread making, pasta, cookies and cakes. In the current work, a field trial examined the effects of three ureabased fertilizers and four nitrogen (N) rates on selected physical, physicochemical and rheological characteristics of kernels and flour of wheat grown under a no-till system. The results showed no differences among the three fertilizers but the highest N rates produced changes, decreasing the thousand kernel weight and test weight (PH) and increasing kernel protein content and the gluten content of the flour. Multivariate statistical analysis techniques (principal component analysis and hierarchical cluster analysis) were also effective in differentiating the fertilizers based on the evaluated responses.Keywords: Triticum aestivum, flour rheology, urea, multivariate statistics.Qualidade tecnológica do trigo influenciada pela adubação nitrogenada em sistema de plantio direto RESUMO. O trigo é um dos mais importantes cereais cultivados no mundo, com grande importância na alimentação humana. Diferentemente de muitas outras matérias-primas agrícolas, as propriedades tecnológicas do trigo são fundamentais para a sua comercialização e utilização. Sua proteína de reserva, conhecida como glúten, apresenta as propriedades reológicas únicas que possibilitam que o trigo seja usado em diferentes aplicações industriais, principalmente para obtenção de pães, massas alimentícias, biscoitos e bolos. No presente trabalho, um experimento foi realizado com o objetivo de avaliar os efeitos de três fertilizantes à base de ureia e quatro doses de nitrogênio (N) sobre as características físicas, físico-químicas e reológicas de grãos e farinha de trigo cultivado em sistema de plantio direto. Os resultados mostraram que os três fertilizantes à base de ureia não ocasionaram alterações nas características avaliadas, mas as maiores doses de N diminuíram o peso de mil grãos e o peso hectolítrico (PH), e aumentaram o conteúdo de proteína nos grãos e de glúten nas farinhas. Técnicas de estatística multivariada (análise de componentes principais e análise hierárquica de agrupamentos) também foram efetivas na diferenciação dos tratamentos, considerando-se as variáveis estudadas.Palavras-chave: Triticum aestivum, reologia da farinha, ureia, estatística multivariada.

show abstract

Section: Resultssupporting

confidence: 75%

<b>Wheat technological quality as affected by nitrogen fertilization under a no-till system

Rodrighero¹,

Caires²,

Lopes³

et al. 2015

Acta Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…In other studies were also found increases in wheat grain yield with nitrogen fertilization (ZAGONEL et al, 2002;BOSCHINI et al, 2011). However, it stands out in our study, that the wheat yield achieved in the plots without topdressing nitrogen fertilization was relatively high in order of 4500 kg ha -1 of grains.…”

Section: Resultscontrasting

confidence: 43%

Use of active canopy sensors to discriminate wheat response to nitrogen fertilization under no-tillage

2016

View full text Add to dashboard Cite

Spectral reflectance sensors may be useful in discriminating biomass and nitrogen status in plants. A field experiment was carried out on a loamy Typic Hapludox under no-tillage in Ponta Grossa, Parana State, Brazil, aiming to evaluate the efficiency of active canopy sensors (GreenSeeker 505 and Crop Circle ACS-470) to discriminate wheat response to nitrogen fertilization by determining the dry mass, nitrogen status, and grain yield. A randomized complete block design was used and four treatments were replicated 12 times. The treatments consisted of nitrogen application, as urea, at the rates of 0, 50, 100, and 150 kg ha -1 . The nitrogen rates were applied in topdressing at tillering of wheat crop. The readings from the sensors were sensitive to changes caused by nitrogen rates application and yet had close and significant correlations with the dry biomass production and nitrogen uptake by wheat plants. GreenSeeker 505 and Crop Circle ACS-470 sensors showed similar efficiency in discriminating biomass production and the nutritional status in the wheat crop related to nitrogen. Wheat grain yield was high and it did not follow the gains in the production of dry mass in the shoot.

show abstract

“…The greatest range of values was found in Population 1 with a value of 74, and the smallest range was in Population 2 with 35 grains per ear (Table 1 and 2). In this study, it was observed that an increase in the number of grains per ear caused by increased nitrogen doses (Cazetta et al 2007, Boschini et al 2011.…”

Section: Resultsmentioning

confidence: 78%

Dynamic characters involved in grain yield and variability of wheat segregating populations

Thurow¹,

Silva²,

Carbonari³

et al. 2018

Commun. Plant Sci.

View full text Add to dashboard Cite

Wheat is the main source of carbohydrate for humanity, being the second most-produced cereal in the world. Brazil is not self-sufficient in this crop, and the Country needs to import wheat to supply the national demand. The objective of this study was to analyze the performance of agronomic traits in wheat segregating populations in the F2 generation, and to estimate the genetic distance between the parents and the segregating populations , number of grains per ear (NGE), grain mass per ear (GME), grain yield per plant (GYP) and ear harvest index (EHI) were measured. The population 5 showed the greatest stature and population 4 showed less variability for the trait. All populations showed averages of NFT and GYP higher than the parents, indicating the presence of transgressive segregants, or presence of dominance in these traits. The grain mass per ear is the trait that contributes most to the distance between the genotypes. There was the formation of four groups by Tocher's grouping method and the population 3 is the most different to the parents, when considering all traits. Highlighted ConclusionThere is genetic variability for traits within wheat segregating populations.

show abstract

Aspectos quantitativos e qualitativos do grão de trigo influenciados por nitrogênio e lâminas de água

Cited by 18 publications

References 10 publications

<b>Wheat technological quality as affected by nitrogen fertilization under a no-till system

<b>Wheat technological quality as affected by nitrogen fertilization under a no-till system

Use of active canopy sensors to discriminate wheat response to nitrogen fertilization under no-tillage

Dynamic characters involved in grain yield and variability of wheat segregating populations

Contact Info

Product

Resources

About