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| Batista,Michelli Fernandes; Moscheta,Ismar Sebastião; Bonato,Carlos Moacir; Batista,Marcelo Augusto; Almeida,Odair José Garcia de; Inoue,Tadeu Takeyoshi. |
| Aluminum (Al) toxicity is one of the most limiting factors for productivity. This research was carried out to assess the influence of Al nutrient solution on plant height, dry weight and morphoanatomical alterations in corn (Zea mays L.) roots and leaves. The experiment was conducted in a greenhouse with five treatments consisting of Al doses (0, 25, 75, 150, and 300 µmol L-1) and six replications. The solutions were constantly aerated, and the pH was initially adjusted to 4.3. The shoot dry matter, root dry matter and plant height decreased significantly with increasing Al concentrations. Compared to the control plants, it was observed that the root growth of corn plants in Al solutions was inhibited, there were fewer lateral roots and the development of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dry matter production; Height; Toxicity; Zea mays L.. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000100018 |
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| Cunha,Márcio Vieira da; Lira,Mario de Andrade; Santos,Mércia Virginia Ferreira dos; Freitas,Erinaldo Viana de; Dubeux Junior,José Carlos Batista; Mello,Alexandre Carneiro Leão de; Martins,Kalina Gerciane Rodovalho. |
| The objectives in this work were to study the association between the morphological and productive characteristics in Pennisetum sp. clones, and to identify the morphological characteristics responsible for the productivity in Pennisetum cp. clones. The canonical correlations were evaluated and the path analysis was made from the simple genotypic correlation matrix between the morphological and productive characteristics of eight Pennisetum sp. clones (Taiwan A-146 2.37, Taiwan A-146 2.27, Taiwan-146 2.114, Merker México MX 6.31, Mott, HV-241, Elefante B and IRI-381). The canonical correlations were significant at 1% probability by the Chi-square test. The first pair of canonic factors, with correlation of 0.9999, related the plants with the highest dry... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Canonic correlation; Dry matter content; Dry matter production; Millet; Path analysis; Pennisetum sp. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000300004 |
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| Strassburger, André Samuel; Universidade Federal de Pelotas; Peil, Roberta Marins Nogueira; Universidade Federal de Pelotas; Fonseca, Leandro Andrade da; Universidade Federal de Pelotas; Aumonde, Tiago Zanatta; Universidade Federal de Pelotas; Mauch, Carlos Rogério; Universidade Federal de Pelotas. |
| O objetivo deste trabalho foi quantificar os índices de crescimento, a produção e a distribuição de matéria seca da cultura da abobrinha italiana cultivada em substrato de casca de arroz in natura com solução nutritiva recirculante, em duas épocas de cultivo: primavera-verão de 2005 e verão-outono de 2006, caracterizadas, respectivamente, como períodos de alta e baixa disponibilidades de radiação solar. Cada tratamento correspondeu a uma época de amostragem, sendo a produção de matéria seca quantificada aos 0, 18, 32, 46 e 68 dias após o transplante (DAT) no cultivo de primavera-verão, e aos 0, 15, 29, 43 e 55 DAT no cultivo de verão-outono. A produção de matéria seca foi maior quando a disponibilidade de radiação solar foi mais elevada. Nessa situação... |
| Tipo: Pesquisa de Campo |
Palavras-chave: 5.00.00.00-4; 5.01.00.00-9 Cucurbita pepo L.; Produção de matéria seca; Hidroponia; Área foliar; Radiação solar; Análise de crescimento 5.01.03.00-8 Cucurbita pepo L.; Dry matter production; Hydroponics; Leaf area; Solar radiation; Growth analysis. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5952 |
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| Ducati,Camila; Neres,Marcela A; Castagnara,Deise D; Oliveira,Paulo S. R; Weirich,Daiane; da Silva,Gustavo M; Sunahara,Samantha M. M. |
| C. Ducati, M.A. Neres, D.D. Castagnara, P.S.R. Oliveira, D. Weirich, G.M. Silva, and S.M.M. Sunahara. 2015. Forage potential of oat Iapar 61 alone or in association with birdsfoot trefoil. Cien. Inv. Agr. 42(3): 341-351. The objective of this study was to evaluate the structural characteristics, dry matter production, residual mass, chemical composition and in vitro dry matter digestibility of Iapar 61 black oat (Avena strigosa cv Iapar 61) pasture, both in isolation and in association with birdsfoot trefoil (Lotus corniculatus L., cv. St. Gabriel), under different forms of management in three growth cycles. A randomized block design was used with split plots in time with four treatments: conventional tillage oats, oat tillage, oats associated with... |
| Tipo: Journal article |
Palavras-chave: Apical meristem; Crude protein; Dry matter production; Winter legume. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000300003 |
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| Carvalho, Zaqueu Gonçalves; Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Vianna, Maria Celuta Machado; Silva, Edilane Aparecida; Queiroz, Domingos Sávio. |
| his study aimed to evaluate the effect of different doses of nitrogen fertilization on the morphogenic, structural, productive and chemical composition of Urochloa decumbens (Stapf) R. D. Webster cv. Basilisk in a silvopastoral system with eucalyptus. The experimental treatments consisted of pastures of Basilisk cultivar, fertilized with 0, 100, 200, 300 and 400 kg ha-1 year-1 of N, and intercropped with eucalyptus, clone GG 100 (Eucalyptus grandis x E. urophylla). The experimental arrangement followed a randomized block design with four replicates. The evaluated characteristics were: foliar appearance rate, phyllochron, leaf length, leaf elongation rate, leaf life span, foliar senescence rate, number of green leaves per tiller, number of senescent leaves... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ciências Agrárias; Zootecnia; Forragicultura e Pastagens chemical composition; Dry matter production; Eucalyptus; Leaf elongation rate; Urochloa decumbens.. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/39190 |
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| Lajús,Cristiano Reschke; Scheffer-Basso,Simone Meredith; Miranda,Mario; Denardin,Rosiane Berenice Nicoloso; Valls,José Francisco Montenegro. |
| In this study, the phenotypic diversity of five accessions of giant missionary grass (Axonopus jesuiticus × A. scoparius) was evaluated by using morphophysiological traits. Accessions V 14337, V 14403, V 14404, V 14405 and V 14406 are hybrids derived from spontaneous crossing that occurred in Vale do Itajaí, Santa Catarina, Brazil. Plants were cultivated in greenhouse and evaluated at 60, 90, 120, 150, 180, 210 and 240 days of growth. Variation was observed for dry matter production, phenology and morphological traits, showing the possibility of selection. Flowering started at 210 days of growth and only in accessions V 14337 and V 14404. The Mahalanobis distance among accessions ranged from 35.64 (V 14403 and V 14405) to 183.38 (V 14337 and V 14405), and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: A. catharinensis; Dry matter production; Growth analysis; Phenology. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100004 |
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