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| Cruz, Jailson Lopes; Coelho Filho, Mauricio Antonio; Coelho, Eugenio Ferreira; Santos, Andrade Alves dos. |
| This study was developed to evaluate the effects of salinity on the growth and gas exchange of cassava plants, cultivar Verdinha. The four concentrations of NaCl (mM) were as follows: 0, 20, 40, and 60. Under salinity, the lowest concentration of Na+ ions was observed in the tuberous roots; however, the dry matter of tuberous roots was reduced with an application of just 20 mM NaCl. The harvest index was reduced 50% with the highest salt concentration. Salinity reduced carbon assimilation (A), stomatal conductance (gs), transpiration, and the instantaneous water use efficiency. The correlation between gs and A was high and positive, showing that stomatal movement was one of the responsible for the lower A. Under salt stress, there was an increase in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.01.03.06-7 photosynthesis; Dry matter; Water use efficiency; Harvest index; Root:shoot ratio; Salt stress. fisiologia de plantas cultivadas. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32952 |
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| Amorim, Daniel Vieira; Mesquita, Alessandro Carlos; Marinho, Lígia Borges; Souza, Vanuza de; Aidar, Saulo de Tarso; Carvalho, Marília Mickaele Pinheiro. |
| The current scenario of increased water scarcity is due to climate change and directly affects food production. It is thus necessary to develop strategies to mitigate the impacts of low water availability. Therefore, the goal of the present study is to evaluate the physiological behaviour of melon cultivars under water stress. The experiment was conducted in a protected environment in the experimental Submedium region of the São Francisco River Valley in the period ranging from October to December. In this study, we used the melon cultivars 'Amarelo' and 'Piel de Sapo'. The experiment was conducted in a randomized block design with three replicates that were subdivided into plots, where the plots were comprised of four irrigation rates (50, 75, 100, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Photosynthetic adjustment; Tolerance; Dry matter; Cucumis melo L.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42686 |
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| Cruz, Simério Carlos Silva; UNESP; Pereira, Francisco Rafael da Silva; UNESP; Bicudo, Silvio José; UNESP; Albuquerque, Abel Washington de; UFAL; Santos, José Roberto; UFAL; Machado, Carla Gomes; UNESP. |
| O objetivo deste trabalho foi avaliar sistemas de consorciação entre milho e Brachiaria decumbens e seus efeitos sobre a nutrição mineral das culturas. O experimento foi conduzido no ano agrícola de 2005, na Área Experimental do Campus Delza Gitaí, pertencente ao CECA-UFAL. Os tratamentos consistiram do cultivo de um híbrido de milho BRS 3150, nos sistemas: Preparo Convencional do Solo, Cultivo Mínimo e Semeadura Direta (BRS 3150 em consórcio com Brachiaria decumbens). O experimento obedeceu ao esquema de blocos casualisados com parcelas subdivididas em quatro repetições. Durante o período de florescimento da cultura do milho, foram coletadas folhas da base da espiga para análise nutricional. Foram realizadas coletas de material vegetal da Brachiaria... |
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Palavras-chave: 5.02.01.07-7 Solos Florestais teores de macronutrientes; Massa seca; Material vegetal macronutrients levels; Dry matter; Plant matter. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5975 |
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| Amorim, Daniel Vieira; Mesquita, Alessandro Carlos; Marinho, Lígia Borges; Souza, Vanuza de; Aidar, Saulo de Tarso; Carvalho, Marília Mickaele Pinheiro. |
| The current scenario of increased water scarcity is due to climate change and directly affects food production. It is thus necessary to develop strategies to mitigate the impacts of low water availability. Therefore, the goal of the present study is to evaluate the physiological behaviour of melon cultivars under water stress. The experiment was conducted in a protected environment in the experimental Submedium region of the São Francisco River Valley in the period ranging from October to December. In this study, we used the melon cultivars 'Amarelo' and 'Piel de Sapo'. The experiment was conducted in a randomized block design with three replicates that were subdivided into plots, where the plots were comprised of four irrigation rates (50, 75, 100, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Photosynthetic adjustment; Tolerance; Dry matter; Cucumis melo L.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42686 |
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| Dan, Hugo Almeida; FESURV; Carrijo, Murilo Sousa; Universidade de Rio Verde - FESURV; Carneiro, Daniela Fideles; Universidade de Rio Verde - FESURV; Costa, Katia Aparecida de Pinho; Universidade de Rio Verde - FESURV; Silva, Alessandro Guerra; Universidade de Rio Verde - FESURV. |
| O presente trabalho objetivou avaliar a influência do sombreamento sobre o desempenho de cultivares de sorgo granífero. O ensaio foi realizado em casa-de-vegetação, utilizando-se delineamento inteiramente casualisado, em esquema fatorial 4 x 2, correspondendo aos quatro híbridos de sorgo granífero (DKB 599, AG 1040, BRS 308 e AG 1040) submetidos a pleno sol e sombreado, com três repetições. Determinou-se a altura de planta, área foliar, matéria seca das folhas, caule, raízes e panícula, além do comprimento do pendão e da panícula. Os resultados obtidos permitiram constatar que o ambiente sombreado proporcionou maior altura de plantas de sorgo, porém menores valores de área foliar. A redução na luminosidade proporcionou ainda maior acúmulo de massa seca de... |
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Palavras-chave: Agronomia Sorghum bicolor; Radiação solar; Matéria seca; Características agronômicas 5.01.03.06-7 Sorghum bicolor; Solar radiation; Dry matter; Agronomic characteristics. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5508 |
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| Bosa, Ronaldo; Universidade Federal do Pará; Faturi, Cristian; Universidade Federal Rural da Amazônia; Vasconcelos, Helbilena Gildeli Rodrigues; Universidade Federal do Pará; Cardoso, Arilson Moraes; Universidade Federal Rural da Amazônia; Ramos, Aline Fernanda Oliveira; Universidade Federal Rural da Amazônia; Azevedo, Jorge Cardoso de; Universidade Federal Rural da Amazônia. |
| O trabalho foi realizado na Universidade Federal Rural da Amazônia com o objetivo de avaliar o consumo e digestibilidade aparente de ovinos alimentados com dietas contendo diferentes níveis de inclusão de torta de coco (25, 50 e 75%). Foram utilizados 12 ovinos, machos, da raça Santa Inês, com idade média de cinco meses e com peso médio de 19,5 kg, mantidos em gaiolas metabólicas individuais distribuídos em um delineamento inteiramente casualizado. Observou-se que o consumo de matéria seca decresceu com a inclusão de torta de coco, apresentando valores de 699; 405 e 373 g e 3,67; 2,15 e 2,00% do peso vivo para os níveis de 25, 50 e 75%, respectivamente. O mesmo comportamento foi observado para o consumo de proteína, entretanto não foram observadas... |
| Tipo: Análise laboratorial |
Palavras-chave: Ciência Animal; Produção animal; Nutrição de ruminantes extrato etéreo; FDA; FDN; Matéria seca; Proteína ether extract; NDF; ADF; Dry matter; Protein. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/11936 |
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| Santos, Rafael Dantas dos; Empresa Brasileira de Pesquisa Agropecuária (Embrapa Semiárido); Pereira, Luiz Gustavo Ribeiro; Empresa Brasileira de Pesquisa Agropecuária (Gado de Leite); Neves, André Luis Alves; Empresa Brasileira de Pesquisa Agropecuária (Gado de Leite); Rodrigues, José Avelino Santos; Empresa Brasileira de Pesquisa Agropecuária (Milho e Sorgo); Costa, Cleber Thiago Ferreira; Universidade Federal Rural de Pernambuco; Oliveira, Getúlio Figueiredo de; Universidade Federal de Sergipe. |
| Productive performance for silage production of five forage sorghum genotypes (BRS Ponta Negra, BRS 655, BR 601, BRS 506 and BRS 610) was evaluated through the yield of dry matter, digestible dry matter, and fresh matter, plant height, percentage of lodged and broken plants, and anatomical fractions in Brazilian semi-arid region. BRS 506 and BRS Ponta Negra varieties achieved the highest fresh forage yields (89.4 and 76.2 ton. ha-1), and BRS 506, stood out for dry and digestible dry matter yield (25.2 and 12.1 ton. ha-1, respectively). Regarding the participation of the plant fractions, BRS 655 and BRS 610 genotypes showed a higher percentage of panicles (50.2 and 41.0% respectively), while BRS 506 stressed out the stem participation (84.6%), and BRS Ponta... |
| Tipo: Pesquisa de campo |
Palavras-chave: 5.04.04.00-8; 5.04.04.01-6; 5.04.05.00-4 fforage; Dry matter; Nutrition; Ruminants; Sorghum bicolor (L.) Moench. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/13072 |
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| Goes, Rafael Henrique de Tonissi e Buschinelli de; UFGD; Souza, Kennyson Alves de; UFGD; Patussi, Rosiélen Augusto; UFGD; Cornelio, Tathiane da Cunha; UFGD; Oliveira, Euclides Reuter de; UFGD; Brabes, Kelly Cristina da Silva; UFGD. |
| Avaliou-se a degradabilidade ruminal in situ, em ovinos dos grãos e coprodutos de girassol, soja e crambe, em três ovinos da raça Santa Inês com peso de 40 kg, fistulados e providos de cânulas ruminais, mantidos em baias individuais. Os alimentos foram incubados em ordem decrescente de 72, 48, 24, 18, 6, 3 e 0h. A fração potencialmente degradável da MS para a torta de girassol foi 73,7% e da PB 34,6%, o que proporcionou média degradação ruminal para PB. O grão de girassol apresentou baixa degradabilidade ruminal para a MS e PB (33,55 e 25,98%). A torta de soja apresentou fração solúvel de 23,15 e 7,79%, para a MS e PB, com uma degradabilidade efetiva de 75,6 e 70,89%, enquanto que o grão de soja apresentou baixa fração solúvel para MS e PB (4,79 e 8,73%),... |
| Tipo: Pesquisa de campo |
Palavras-chave: 5.04.03.02-8 composição química; Matéria seca; Proteína; Sacos de náilon; Tempo de colonização Avaliação de Alimentos para Animais chemical composition; Dry matter; Protein; Nylon bags; Graining period. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/7913 |
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| Cruz, Rossini Sôffa da; UFT; Santos, Antonio Clementino dos; Universidade Federal do Tocantins.; Castro, José Gerley Diaz; UFT; Alexandrino, Emerson; UFT; Caraça, Diego Camargo; UFT; Diniz, Jociane Pereira; UFT. |
| Este estudo foi desenvolvido com o objetivo de avaliar o capim-elefante cv. Cameroon em função de doses de N em diferentes solos. Foi utilizado o delineamento experimental inteiramente casualizado em fatorial 5 x 2, sendo cinco doses de nitrogênio (0, 30, 60, 90, e 150 kg de N ha-1), testadas em duas classes de solo (Argissolo Vermelho eutroférrico típico e Neossolo Quartzarênico órtico típico), com quatro repetições. Os parâmetros avaliados foram: altura da planta, perfilhos, massa por perfilho, relação folha: colmo, matéria seca e pH do solo. Houve resposta positiva para ambos os solos, sendo a melhor resposta para o Argissolo. A massa dos perfilhos em gramas mostra efeito linear em função dos níveis de N e no Neossolo não houve diferença entre os... |
| Tipo: Pesquisa de campo |
Palavras-chave: Argissolo; Matéria seca; Número de perfilhos; Massa por perfilho Neossolo Quartzarênico Pennisetum purpureum Shum. Argissolo; Matéria seca; Massa por perfilho; Neossolo Quartzarênico; Pennisetum purpureum Forragicultura Oxisol; Dry matter; Mass per tiller; Entisol; Pennisetum purpureum. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6209 |
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| Teixeira, Fábio Andrade; UESB; Bonomo, Paulo; UESB; Pires, Aureliano José Vieira; UESB; Silva, Fabiano Ferreira da; UESB; Fries, Daniela Deitos; UESB; Hora, Diego Souto da; UESB. |
| O objetivo deste trabalho foi avaliar a produção de Brachiaria decumbens diferidos por períodos de 95 e 140 dias. Foram realizados dois ensaios experimentais (95 e 140 dias) e em cada ensaio foram estudadas quatro estratégias de adubação no início e no final do verão (0-0, 100-0, 50-50, 0-100 kg há-1 de N), respectivamente, com quatro repetições. A maior (p < 0,05) produção anual de matéria seca (MS) foi verificada para a estratégia de adubação com 100 kg ha-1 de N aplicados no início do verão (100-0), nos pastos diferidos com 95 dias. Entretanto, no outono, inverno e primavera, a estratégia de aplicação de 100 kg ha-1 de N no final do verão (0-100), proporcionou maiores (p < 0,05) produções de forragem. A produção diária de matéria seca, quando... |
| Tipo: Pesquisa de campo |
Palavras-chave: Forragicultura e pastagens Adubação nitrogenada; Diferimento; Matéria seca; Proteína bruta nitrogen fertilizer; Deferring; Dry matter; Crud protein. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10194 |
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| Pimentel, Leidiane Reis; Silva, Fabiano Ferreira da; Silva, Robério Rodrigues; Schio, Alex Resende; Rodrigues, Eli Santana de Oliveira; Oliveira, Paulo Andrade de. |
| This study aimed to evaluate the effect of including of palm kernel cake on feeding behavior of lactating crossbred cows. Twelve crossbred Holstein x Zebu cows were distributed in three 4 x 4 latin squares, with the following treatments: control; inclusion of 5%; inclusion of 10%; inclusion of 15% palm kernel cake in the diet dry matter. The animals were observed during four periods as to feeding behavior, 24 hours in each period. There was no effect of inclusion of palm kernel cake (p > 0.05) on time spent on eating, ruminating and idling. The feeding efficiencies of dry matter and corrected neutral detergent fiber, total digestible nutrients, and the rumination efficiency of corrected neutral detergent fiber were not influenced (p > 0.05). There... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Behavioral activities; Feeding; Feed efficiency; Dry matter; Idle; Rumination. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/23391 |
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| Timm, Luiz Carlos; Haygert-Velho, Ione Maria Pereira; Bolke, Delvacir Rezende; Antunes, Gustavo Veiverberg; Alessio, Dileta Regina Moro; Velho, João Pedro. |
| This study analyzed the behavior of the annual ryegrass (Lolium multiflorum) BRS Ponteio and dual-purpose wheat (Triticum aestivum) BRS Tarumã with different doses of ammonium sulfate as topdressing and evaluated the exponential growth model to explain the physiological development of both species. For each species, a completely randomized design was used with four replications per treatment with 9m2 area, in which the following treatments were distributed: 0, 150, 250, 350 and 450 kg nitrogen per hectare applied as ammonium sulfate. The cumulative and adjusted productions to the exponential growth model at the end of the cycle were, respectively: BRS Ponteio 150 = 5,620; 250 = 5,920; 350 = 7,585 and 450 = 8,491 and BRS Tarumã 150 = 3,922; 250 = 5,060; 350... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ciências Agrárias; Zootecnia; Pastagem e Forragicultura degree-days; Lolium multiflorum; Dry matter; Exponential model; Nitrogen; Triticum aestivum.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/44026 |
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| Barbeiro, Caroline; Firmino, Taysi Pereira; Novais, André Henrique Oler de; Romagnolo, Mariza Barion; Pastorini, Lindamir Hernandez. |
| Albizia niopoides (Bentham) Burkart, known as farinha seca, is an arboreal, deciduous and pioneer plant that can be found in the semi-deciduous forest in the Paraná basin. The study on the germination and growth of the plant is fundamental for better knowledge about the establishment and regeneration of the species. Aiming to verify the germination of A. niopoides and subsequent growth, green seeds and brown seeds were germinated in a germination chamber and growth parameters were evaluated at 60, 90, and 180 days after transplanting (DAT) in a greenhouse. There was no significant difference in germination percentage between green and brown seeds. However, lower levels of mean germination times and higher levels of germination speed index were observed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Botânica establishment; Dry matter; Green seeds; Brown seeds. Fisiologia Vegetal. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/39073 |
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| Teixeira,Matheus Pozetti; Campos,Cid Naudi Silva; Prado,Renato de Mello; Caione,Gustavo; Mingotte,Fábio Luiz Checchio; Agostinho,Flavia Bastos. |
| Abstract The method used to dry plant tissue samples may modify its nutrient content, and results in incorrect diagnostic of crop nutritional status. The hypothesis was that microwave drying method does not affect the nutrient content of leaves neither the interpretation of the results, as compared to oven-drying procedure. In this study we evaluated the effect of microwave drying of eucalyptus (Corymbia Citriodora (Hook.)) and rubber trees (Hevea brasiliensis Muell. Arg.) leaves on dry matter and macronutrient content, as compared to oven drying. The study was performed in a laboratory at the Department of Soils and Fertilizers of Universidade Estadual Paulista “Julio de Mesquita Filho”, UNESP, Jaboticabal-SP-Brazil. The experiments were: one using leaf... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical analysis; Dry matter; Nutritional status; Plant material; Plant nutrition. |
| Ano: 2017 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952017000500555 |
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| Ramos-Trejo,O. Santiago; Victoria-Graniel,C. Arturo; Sandoval-Gío,J. José. |
| Pennisetum purpureum has an extended use as forage and further knowledge related to the seasonal influence and fertilization could improve its cultivation. The effects of dry and rainy season and application of fertilizers (200-60-00), on the yield of four varieties of P. purpureum (Taiwan, OM-22, Maralfalfa, CT-115), and a homogeneous mixture of them were evaluated. The study, with four replicates, was conducted at Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias, Tizimín, México, and lasted 10 months. Dry matter (DM), crude protein, leaf/stem ratio, stalks per cluster, and plant height, were assessed. Mean values of DM of all treatments in rainy season were significantly different with respect of dry season (36 and 28 t ha-1). Dry... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical composition; Dry matter; Tropical forages; King Napier grass; Yield. |
| Ano: 2015 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952015000800002 |
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| Ordóñez-Santos,Luís E.; Martínez-Álvarez,Gloria M.; Vázquez-Riascos,Andrea M.. |
| Mammee apple (Mammea americana L.) fruits are promising sources of various bioactive compounds such as carotenoids, vitamin C, and phenolic compounds, and offer great potential for use in agro-industrial processing and to meet the requirements desired for consumer health. The objective of this study was to evaluate physicochemical and sensory changes of mammee apple after syrup and jam processing. Fruits were washed, cut, pulped, blanched, and the pieces of fruit blanching were stored in 125 mL glass jars, and covered with 18 °Brix boiling sugar syrup. The mixture was pasteurized and cooled. Jam contained 50 % fruit, 50 % sugar, and 3 % pectin; sugar was added and the mixture boiled to a final concentration of 60 to 62 °Brix. The experimental design was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Exotic fruit; Carotenoids; Ascorbic acid; PH; Dry matter. |
| Ano: 2014 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952014000400003 |
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| Buso,W.H.D.; França,A.F.S.; Miyagi,E.S.. |
| The bromatological composition and in vitro dry matter digestibility of millet cultivars were assessed for different nitrogen doses and two sowing seasons in the Ceres municipality of Goiás state, Brazil. The treatments consisted of three millet cultivars (ADR-7010, ADR-500 and BRS-1501), four nitrogen (N) doses (0, 50, 100 and 200kg ha-1 of N) and two sowing seasons. Three replicates and a randomised block design with a 3 x 4 x 2 factorial scheme were used. Two cuttings were performed in each season when plants reached an average height of 0.70 cm. No significant interactions were observed between or among cultivars for N doses and dry matter (DM), crude protein (CP), neutral detergent fibre (NDF) and acid detergent fibre (ADF) contents. The DM, CP, NDF... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fibres; Forage; Dry matter; Pennisetum glaucum; Protein; Urea. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000300887 |
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| Marques,Douglas José; Ferreira,Mozart Martins; Lobato,Allan Klynger da Silva; Freitas,Wellington Alves de; Carvalho,Jacinto de Assunção; Ferreira,Ewerton Dilelis; Broetto,Fernando. |
| ABSTRACT The aim of this study was to evaluate the potential of calcium silicate to mitigate the effects of water deficiency in maize plants yield. A completely randomized factorial design, consisting of five combinations of calcium silicate (0, 25, 50, 75, and 100%) and five different soil moisture levels (30, 70, 100, 130, and 160%), was adopted. The following parameters were evaluated: soil matric potential, xylem water potential, silicon concentration, leaf dry weight, and dry mass production. Matric potential monitoring confirmed that the irrigation depths employed resulted in different environments for maize plant development during the experiment. Confirming the hypothesis of the study, at the lower irrigation depths, the maize production has... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dry matter; Irrigation; Silicon; Stress. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000300275 |
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