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| Aumonde,Tiago Zanatta; Pedó,Tiago; Borella,Junior; Amarante,Luciano do; Villela,Francisco Amaral. |
| This work aimed to evaluate the effect that different intensities of light have on the physiological attributes of red rice seeds and seedlings. Before and after emergence, seedlings were exposed to light levels of 35%; 65% and 100% in a greenhouse. We evaluated shoots and roots, in terms of length and dry mass, as well as leaf area and content of chlorophyll (a,b and total). In leaves and roots, we quantified the activity of superoxide dismutase (SOD), ascorbate peroxidase (APX), catalase (CAT) and guaiacol peroxidase (POX). We determined the leaf area ratio (F A), leaf mass ratio (F W), specific leaf area (S A), and shoot/root ratio (P W). At higher light intensities, shoot length decreased, whereas root length, dry mass and number of tillers increased.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativa L.; Shading; Chlorophyll content; Antioxidant enzymes. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000200007 |
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| Szareski,Vinícius Jardel; Carvalho,Ivan Ricardo; Kehl,Kassiana; Levien,Alexandre Moscarelli; Nardino,Maicon; Dellagostin,Simone Morgan; Demari,Gustavo Henrique; Lautenchleger,Francine; Villela,Francisco Amaral; Pedó,Tiago; Souza,Velci Queiróz de; Aumonde,Tiago Zanatta. |
| Abstract: The objective of this work was to evaluate the adaptability and multi-trait stability of wheat (Triticum aestivum) genotypes according to the phenotypic index of seed vigor (PIV). Thirty wheat genotypes were grown in seven environments in the state of Rio Grande do Sul, Brazil, during one crop season. In each environment, a randomized complete block design with three replicates was used. The PIV was elaborated from the following traits: first germination count, germination percentage, accelerated aging, and electrical conductivity. The evaluated phenotypic index makes it possible to define macroenvironments for the production of wheat seeds with high physiological potential and to understand the implications of the genotype x environment... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum; Accelerated aging; AMMI; Electrical conductivity; Mixed models; Seed quality. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000600727 |
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