153 resultados para Variedades de trigo


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Pós-graduação em Agronomia (Produção Vegetal) - FCAV

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Pós-graduação em Agronomia (Genética e Melhoramento de Plantas) - FCAV

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Pós-graduação em Alimentos e Nutrição - FCFAR

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Improvement on yield potential of plants by crop management is the main research challenge due to the growing of food demand worldwide. The objective of this work was to study physiological and morphological traits and its relationship with yield components and yield of wheat as affected by sowing densities and plant growth regulators. The experimental design was a split-plot design with four replications. The plots were consisted by four sowing densities ( 30, 50 70 and 90 plants m(-1)) and the subplots were consisted by plant growth regulators [control, (IBA+GA+KT), Trinexapac-Ethyl e (IBA+GA+KT) + Trinexapac-Ethyl]. Dry matter accumulation, plant height, source-sink distance, gas exchange and yield were determined. Trinexapac-Ethyl application resulted in decreasing of plant height, source-sink distance and flag leaf length; however, the grain yield was not affected. The number of plants per unit area affected dry matter accumulation. Higher dry matter accumulation showed direct relationship with yield and yield components in lower plant densities.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The time, dose and applied nutrients in corn have a direct effect on its productivity. Therefore, the objective was to study the application of N and S in corn as ammonium sulfate, in succession to wheat and oats and evaluate different forms of fertilizer management. The experiment was conducted in a randomized block design in Oxisol (Hapludox). The five treatments with N, at a dose of 120 kg ha(-1) were applied in 20 plots (5x4), according to the management of fertilizer: T1-N (120 kg ha(-1)) full at sowing, T2-N (120 kg ha(-1)) total coverage; T3-N (40 kg ha(-1)) at sowing and N (80 kg ha(-1)) in coverage; T4-N advance in wheat sowing and sowing oats (120 kg ha(-1)), T5-(control). The S doses were corresponding to their concentrations in the fertilizer. Only wheat received a dose of 24 kg N ha(-1) at sowing all plots and oats received 24 kg N ha(-1) at sowing only the portions related to treatment with anticipation of corn N (T4). We evaluated the biomass production of winter crops (oats and wheat), according to the fertilization at sowing, and also the influence of winter crops and management of ammonium sulfate, the corn yield. The oats produced more dry matter in relation to wheat, positively influencing the corn yield, regardless of fertilizer management. The anticipation of ammonium sulfate, the sowing of oats, was favorable to corn yield, equating to other forms of management of fertilizer. Rotation corn and oats, forms management, ammonium sulphate, at seeding, topdressing or applied in split were equally efficient in corn yields.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Organizational change is occurring in the Brazilian agribusiness from sugar cane in recent decades. Aspects of management in this sector are being changed due to the importance of its products, especially ethanol and electricity. It is observed in the literature a lack of quantitative studies in this Brazilian sector, particularly the selection of sugarcane varieties for planting. This study proposes the use of Goal Programming (GP) with Data Envelopment Analysis (DEA) to select efficient varieties of sugarcane for planting in a sugar and ethanol milling company. The study allowed the identification of efficient sugarcane varieties. This way, it helped the company to make more reliable decisions, favoring the increase of productivity

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Buscando contribuir e mesmo incentivar novos e mais aprofundados estudos sobre o modo como os dialetos do português são tratados e apresentados à população brasileira, o presente trabalho procura realizar uma breve análise da construção e abordagem do humor nos dicionários de dialetos do português do Brasil, bem como classificar os tipos de dicionários existentes. Busca-se, sobretudo, estudar quais os mecanismos utilizados para provocar o riso, como se reproduz determinado modo de falar e se por traz disto tudo há alguma manifestação velada de preconceito linguístico

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Phenolic compounds represent one of the main groups of secondary metabolites. Due to their chemical diversity, they have a variety of functions in plants, such as protection against ultraviolet radiation, herbivores and pathogens, and attraction of pollinators or dispersers of fruits and seeds. For human, the phenolic compounds are used like food colorings and flavors and, due to their pharmacological properties, mainly to antioxidant activity, they are associated with several health benefits, such as delay senility, prevention and therapy of cardiovascular diseases and of some cancers. The grapes are considered one of the main source of phenolic compounds and the fruit and its products are consumed in Brazil and worldwide. Considering the phenolic compounds diversity and their different distribution in the grape parts, this work had like aims the extraction, identification and quantification of the main classes of phenolic compounds of 10 grape varieties. The content of total phenols, flavanols and anthocyanins were determined, respectively, according to the Folin-Ciocalteu, DMACA and comparison of pH spectrophotometric methods. The content of total phenols varied from 142.75 + 1.86 to 483.39 + 5.90 mg.L-1 in the peel and from 86.50 + 0.54 to 146.32 + 9.97 mg.L-1 in the pulp. The amount of total flavanols varied from 3.68 + 0.03 to 6.92 + 0.26 mg.L-1 in the peel and from 0.90 + 0.00 to 1.36 + 0.00 mg.L-1 in the pulp. The content of total anthocyanins varied from 7.00 + 0.99 to 406.56 + 39.50 mg.L-1 in the peel and from 2.88 + 0.28 to 46.36 + 1.89 mg.L-1 in the pulp. The phenolic compounds concentration was higher in the peel than in the pulp. The total phenols and anthocyanins varied a lot while the total flavanols were more constant. The flavanols represent the smaller portion of phenolic compounds

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Atualmente, os compostos bioativos presentes em alimentos in natura vem sendo amplamente estudados, já que cada vez mais fica comprovado sua importância para saúde do homem devido suas funções e ações biológicas. Hoje já associa-se a ingestão de frutas e vegetais e a diminuição do risco de diversas doenças, tais como câncer, inflamações, doenças cardiovasculares, degeneração macular e outras, sendo os carotenóides e compostos fenólicos alguns dos grupos de compostos bioativos aos quais são atribuídas tais ações.1As pimentas têm significativa importância nesse cenário, uma vez que desde a época do Brasil colônia, até hoje, são muito utilizadas na culinária, nas crenças, na medicina e inclusive com arma de defesa. Os compostos presentes na pimenta são utilizados como remédios para artrites (pomadas a base de capsaicina), dores musculares (emplastro ‘Sabiá’), má digestão, dor de cabeça e gastrite. O presente estudo teve como objetivo quantificar os teores de ácido ascórbico, acidez, flavonóides totais, fenólicos totais, carotenóides totais e atividade antioxidante de duas variedades mais comuns da espécie C. Baccatum: pimenta “Dedo-de-Moça” e pimenta “Cambuci”. Além disso, fez-se um estudo para analisar o efeito do cozimento versus compostos bioativos, a fim de avaliar possíveis perdas de atividade devido ao processamento das amostras. Em todos os ensaios, a pimenta Dedo-de-Moça apresentou valores maiores de todos os compostos bioativos, quando comparados aos da pimenta Cambuci. Após o cozimento em água fervente, a maioria dos compostos sofreu redução, exceto nos testes de quantificação de Flavonóides e Carotenóides, os quais demonstraram aumento na concentração após o processamento.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper aims to analyze and to characterize the structure of some linguistic expressions that, in the view of Functional Discourse Grammar (HENGEVELD; MACKENZIE, 2008), are called Interactive Acts because they show the Speaker, the Addressee and the Illocution positions filled in. To do so, we analyse data composed of representative texts of Portuguese spoken in Portugal, in Brazil, in African countries (those that have Portuguese as official language) and in East Timor