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| Registros recuperados: 238 | |
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| Barros,Nara Vanessa dos Anjos; Rocha,Maurisrael de Moura; Glória,Maria Beatriz Abreu; Araújo,Marcos Antônio da Mota; Moreira-Araújo,Regilda Saraiva dos Reis. |
| ABSTRACT The present study evaluated the effect of cooking on the levels of bioactives compounds and antioxidant activity in grains cowpea cultivars. The analysis were performed on the raw samples and after cooking in pressure cooker. Regarding the bioactive compounds present, the grain cultivar BRS Aracê exhibited the highest levels of total phenolic compounds (mg/100 g) both before and after cooking, 205.10 ± 2.89 and 150.62 ± 2.64, respectively. Spermine and spermidine were identified in the cultivars (mg/kg) BRS Milênio in the amount of 120.5 in crude and 50.4 in cooked grain, in the BRS Tumucumaque in the amount of 116.2 in crude and 47.9 in cooked grain, exhibited significant losses of these compounds after cooking. It was not detected the presence... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna unguiculata; Functional food; Antioxidants; Processing. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500824 |
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| Dutra,Alek Sandro; Bezerra,Francisco Thiago Coelho; Nascimento,Paulo Roberto; Lima,Denise de Castro. |
| Objetivou-se com este trabalho avaliar níveis e formas de aplicação de nitrogênio sobre a produtividade e a qualidade fisiológica de sementes de feijão caupi. O trabalho foi desenvolvido no Campus do Pici da Universidade Federal do Ceará. As parcelas foram constituídas por seis linhas de 5 m espaçadas em 0,5 m, sendo a área útil às quatro linhas centrais desprezando-se 0,5 m em ambas as extremidades. A densidade de semeadura foi de 12 sementes m-1. Nessa etapa obteve-se a produtividade de sementes. A qualidade fisiológica das sementes foi avaliada a partir dos testes: germinação, primeira contagem, emergência de plântulas, índice de velocidade de emergência e, massa seca da parte aérea. Os tratamentos consistiram na ausência de adubação nitrogenada e nas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna unguiculata; Produtividade; Germinação; Vigor. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902012000400025 |
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| Chagas Junior,Aloísio Freitas; Rahmeier,Wagner; Fidelis,Rodrigo Ribeiro; Santos,Gil Rodrigues dos; Chagas,Lillian França Borges. |
| A interação do feijão-caupi com bactérias fixadoras de N atmosférico pode aumentar a produtividade e diminuir os custos de produção. No presente trabalho, avaliou-se, no campo, a eficiência agronômica, através do acúmulo de biomassa da parte aérea, radicular, número e biomassa dos nódulos, eficiência relativa e produtividade de três cultivares de feijão-caupi (BRS Nova Era, BRS Pujante e Vinagre), em experimentos independentes, inoculadas com cinco estirpes de rizóbio, BR 3302 (UFLA 3-84), BR 3301 (INPA 03-11B), BR 3262, BR 3299 e BR 3267, mais dois controles, testemunha e adubado com nitrogênio (50 kg de N ha-1), em cada experimento, em blocos ao acaso. Para cada cultivar a resposta de cada estirpe inoculada variou dentro das características avaliadas.... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Vigna unguiculata; Fixação biológica do nitrogênio; Biologia do solo. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902010000400027 |
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| Rocha,Maurisrael de Moura; Damasceno-Silva,Kaesel Jackson; Menezes-Júnior,José Ângelo Nogueira de; Carvalho,Hélio Wilson Lemos de; Costa,Antônio Félix da; Lima,João Maria Pinheiro de; Santos,João Felinto dos; Bertini,Cândida Hermínia Campos de Magalhães; Passos,Adriana Rodrigues; Morais,Otoniel Magalhães. |
| ABSTRACT Cowpea is grown in different environmental conditions of the Northeast region of Brazil. Thus, selecting and developing cultivars with high yield, stability, and adaptability for this region is necessary due to the genotype × environment interaction. The objective of this work was to select cowpea lines of semi-prostrate plant simultaneously for high yield, adaptability, and genotypic stability in the Northeast region of Brazil by the REML/BLUP procedure. Twenty semi-prostrate genotypes-16 lines and four cultivars-were evaluated in 36 environments of the Northeast region from 2013-2015. The experiments were carried out under rainfed conditions in a completely randomized block design with four replications. The adaptability and genotypic stability... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna unguiculata; Grain yield; Genotype × environment interaction; Mixed models. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500879 |
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| Melo,Natália Quaresma Costa; Moreira-Araújo,Regilda Saraiva dos Reis; Araújo,Marcos Antônio da Mota; Rocha,Maurisrael de Moura. |
| ABSTRACT The cowpea (Vigna unguiculata (L.) Walp.) is one of the most widely consumed legumes in the North and Northeast of Brazil, representing an important source of protein, energy, fibre and minerals, in addition to generating employment and income. The aim of this study was to determine the chemical composition, and the effect of thermal processing on the green grain from biofortified cowpea cultivars. Samples of green grain from four cowpea cultivars were analysed, only one not being biofortified (standard). Centesimal composition and total energy value (TEV) were determined before and after thermal processing. The mean values of the characteristics under evaluation were compared by Student's t-test and Tukey's test (. <0.05). Moisture and TEV... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna unguiculata; Nutritive value; Cooking. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500811 |
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| Melo,Francisco de Brito; Souza,Henrique Antunes de; Bastos,Edson Alves; Cardoso,Milton Jose. |
| ABSTRACT Proposing sufficiency ranges and critical levels is an important technique for correct evaluation of leaf nutrient diagnosis. In this study, the objective was to propose critical levels and sufficiency ranges of macro- and micronutrients for the diagnostic leaf of cowpea, collected at flowering, with the results of macro- and micronutrients and productivity in the Northeast of Brazil. The critical level was calculated by the reduced normal distribution and by the boundary line method, which was also used to generate sufficiency ranges. For the critical level by reduced normal distribution, the relationship of the nutrients with 90% of maximum productivity was adopted. For the boundary line, the relationship of the nutrients that are in the upper... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna unguiculata; Leaf content; Plant nutrition. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000400407 |
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| Bezerra,Antônio Aécio de Carvalho; Neves,Adão Cabral das; Rocha,Maurisrael de Moura; Brito,Lucélia de Cássia Rodrigues de. |
| ABSTRACT The aim of this study was to evaluate morpho-physiological and productive characteristics in four semi-erect cultivars of the cowpea under five plant populations. The experiment was conducted in the experimental area of Embrapa Meio-Norte in Teresina in the State of Piauí, Brazil (PI). The experimental design was of randomised complete blocks with four replications, in a 4 x 5 factorial scheme, for evaluating four cultivars (BRS Guariba, BRS Novaera, BRS Potengi and BRS Tumucumaque) and five plant populations (105, 2x105, 3x105, 4x105 and 5x105 plants ha-1). There were significant differences between cultivars for primary branch length (PBL), number of lateral branches (NLB), 100-grain weight (HGW), and dry-grain yield (GY). The maximum PBL of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna unguiculata; Growth; Production; Plant density. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000400625 |
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| Lima,Michella de Albuquerque; Castro,Victor Freitas de; Vidal,Jones Batista; Enéas-Filho,Joaquim. |
| Apesar de não ser um nutriente essencial, o silício pode aumentar o potencial produtivo de algumas culturas e tem sido utilizado para atenuar os efeitos tóxicos do estresse salino. Nesse sentido, objetivou-se avaliar o efeito do silicato de sódio aplicado sob dois modos diferentes em plântulas de milho e feijão-de-corda submetidas à salinidade. Em casa de vegetação, as plântulas receberam uma dose de Na2SiO3 a 1 mM, via aplicação foliar ou diretamente na solução nutritiva, e foram cultivadas na presença ou ausência de NaCl a 100 mM, durante 15 dias. Foram avaliados a matéria seca de folhas, caules e raízes, a área foliar e o vazamento de eletrólitos em folhas e raízes. De modo geral, a salinidade reduziu a matéria seca das folhas, caules e raízes e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Silicatos; Salinidade; Zea mays; Vigna unguiculata. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902011000200019 |
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| Delmondes,Bruna de Lima; Menezes Júnior,José Ângelo Nogueira de; Silva,Kaesel Jackson Damasceno; Rocha,Maurisrael de Moura; Neves,Adão Cabral das; Pereira,Cassiano Spaziani. |
| ABSTRACT The black-eyed cowpea, is consumed in Brazil and valued in various other countries, and for this reason, can be found on the domestic market, showing the potential for export. The aim of this study was to identify lines of the black-eyed cowpea having high productivity and quality commercial grain. Twenty-four lines of black-eyed commercial subclass of cowpea, taken from the breeding program of Embrapa Meio-Norte, and two controls (BRS Itaim and CB-27) were evaluated. The experiments were carried out in Nova Ubiratã, in the State of Mato Grosso, Brazil (MT) during 2014, and in Primavera do Leste MT and Sinop MT during 2015, in the off-season; planting was in February/March and harvesting in May/June. The experimental design was of randomised... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plant breeding; Vigna unguiculata; Grain quality; CIE L* a* b*. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500848 |
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| Moreira-Araújo,Regilda Saraiva dos Reis; Sampaio,Geni Rodrigues; Soares,Rosana Aparecida Manólio; Silva,Cintia Pereira; Arêas,José Alfredo Gomes. |
| ABSTRACT Dietary antioxidant compounds have been widely studied because of their ability to delay or inhibit oxidative damage, which allows them to play an important role in the prevention of diseases and the promotion of health. The identification and characterization of such compounds are required before their use in humans. This study aimed to identify and quantify antioxidant compounds in the cowpea cultivar, BRS Tumucumaque, and the cowpea strain, Pingo de Ouro 1-2, in view of their potential use in the development of new products with potent antioxidant activity. Here, we report the antioxidant activity and the phenolic compound content of the aforementioned cowpeas. The antioxidant extracts were analyzed by HPLC in a Shimadzu LC-20AT chromatograph... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phenolics; Bioactive; Vigna unguiculata. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500799 |
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| Gondim,Tarcísio Marcos de Souza; Beltrão,Napoleão Esberad de Macêdo; Pereira,Walter Esfrain; Oliveira,Ademar Pereira de; Silva Filho,João Luis da. |
| O arranjo espacial facilita o manejo e proporciona a eficiência da interceptação de luz pelas folhas, numa arquitetura da ramificação com ajuste ao índice de área foliar e incremento da rentabilidade da cultura. Objetivou-se com o presente trabalho, caracterizar o comportamento morfofisiológico da mamoneira cv. BRS Energia, consorciada com feijão caupi cv. Marataoã, sob diferentes arranjos espaciais. O experimento foi conduzido na Estação Experimental da Embrapa Algodão, em Missão Velha, CE, com adubação (55-40-20). O delineamento experimental foi o de blocos casualizados, em esquema fatorial 2³ x 3. A combinação dos fatores, dois espaçamentos entre as linhas (EL de 1,5 e 1,0 m) e entre as plantas de mamoneira (DM de 0,5 e 1,0 m) e duas densidades de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ricinus communis; Vigna unguiculata; Espaçamento; Ramificação. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000100016 |
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| Costa Junior,Manoel de Jesus Nunes da; Bastos,Edson Alves; Cardoso,Milton José; Andrade Júnior,Aderson Soares de. |
| ABSTRACT The cowpea is of great socioeconomic importance in the North, Northeast and Mid-West of Brazil, and its irrigated farming has recently been on the increase in these regions. The aim of this study was to evaluate the agronomic performance of the cowpea 'BRS Tumucumaque' for different row spacings and irrigation depths, under the conditions of soil and climate of Teresina, in the State of Piauí. The experiment was carried out from August to November 2014, in a Yellow Argisol at the Experimental Area of Embrapa Meio-Norte in Teresina. The experimental design was of randomised blocks in subdivided lots, with four replications. The treatments consisted of five irrigation depths (40% ETo, 70% ETo, 100% ETo, 130% ETo and 160% ETo) in the main plot, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna unguiculata; Grain yield; Irrigation management; Plant density; BRS Tumucumaque. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500774 |
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| Bastos,Edson Alves; Nascimento,Sebastião Pereira do; Silva,Everaldo Moreira da; Freire Filho,Francisco Rodrigues; Gomide,Reinaldo Lúcio. |
| The genotypes selection for drought tolerance is very important for world food production, principally in arid regions or sites with irregular rain distribution. The objective of this work was to identify cowpea genotypes with drought tolerance and water stress sensitivity characteristics. Two experiments were carried out with 20 treatments and four replications, one under water deficit during reproductive phase and another one under full irrigation. The water deficit was obtained applying half the water depth required by cowpea. The leaf area index, chlorophyll content, grain components and grain yield were evaluated. The water deficit reduced 20% the leaf area index, 16% the chlorophyll content, 175% the pod number per plant and 60% the grain yield. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna unguiculata; Leaf area index; Chlorophyll content. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902011000100013 |
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| Oliveira,Diêgo Sávio Vasconcelos de; Franco,Luis José Duarte; Menezes-Júnior,José Ângelo Nogueira de; Damasceno-Silva,Kaesel Jackson; Rocha,Maurisrael de Moura; Neves,Adão Cabral das; Sousa,Francisco Mauro de. |
| ABSTRACT Biofortification is a strategy that aims to improve the nutritional quality of foods through genetic breeding. Zinc is an important mineral for human health. It is used in various physiological processes such as immune function, antioxidant protection, growth and development. Therefore, zinc is one of the most studied minerals in the biofortification of grains in cowpea. The objective of this study was to evaluate the adaptability and stability of zinc density in the grain of 12 cowpea genotypes in four environments in the states of Piauí (PI) and Maranhão (MA), Brazil, by using the GGE-Biplot method. A randomized complete block design with four replications was used. Grain samples of each genotype were ground and the resulting flour was subjected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna unguiculata; Micronutrient; Biofortification; Genotype × environment interaction. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500783 |
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| Batista,Éder Rodrigues; Guimarães,Salomão Lima; Bonfim-Silva,Edna Maria; Souza,Analy Castilho Polizel de. |
| ABSTRACT Biological nitrogen fixation (BNF) plays an important role in the cowpea cultivation. This study aimed to assess the foliar levels of chlorophyll and the yield components of cowpea subjected to combined inoculation of rhizobia in Cerrado soil. The experiment was carried out in field conditions, from December of 2014 to the march of 2015, in Rondonópolis, Mato Grosso, using randomized block design with ten treatments and three replicates. Were tested the single strains MT8 and MT15 (both of R. tropici), MT16 (R. leguminosarum), BR3267 (Bradyrhizobium japonicum), the strains combinations MT8+MT15, MT8+MT16, MT15+MT16, and MT8+MT15+MT16, nitrogen fertilization (70 kg ha-1 of N-urea), and absolute control (without inoculation of rhizobia and without... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Symbiotic N2 fixation; Inoculant; Rhizobium tropici; Vigna unguiculata. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500745 |
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| Favacho,Fernando Sarmento; Lima,Jailma Suerda Silva de; Bezerra Neto,Francisco; Silva,Josimar Nogueora da; Barros Júnior,Aurélio Paes. |
| ABSTRACT The aim of this study was to evaluate the agro-economic efficiency of intercropping carrot with cowpea-vegetable in relation to the amounts of biomass of Calotropis procera (Ait.) R.Br. (known locally as flor-de-seda) incorporated into the soil, and to different spatial arrangements. The study was carried out under field conditions from August to November of 2014, at the Experimental Farm 'Rafael Fernandes' of the Rural Federal University of the Semi-Arid (RFUSA), in Mossoró, in the State of Rio Grande do Norte, Brazil. The experimental design was a randomised complete blocks in a 4 x 3 factorial, consisting of a combination of four different amounts of flor-de-seda biomass incorporated into the soil (20, 35, 50 and 65 t ha-1 of dry matter) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Daucus carota; Vigna unguiculata; Calotropis procera; Intercropping. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000200337 |
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| Registros recuperados: 238 | |
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