Priming and stress under high humidity and temperature on thephysiological quality of Brachiaria brizantha cv. MG-5 seeds
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| Format: | Artículo científico |
| Sprache: | en |
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Universidade Estadual de Maringá
2016
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| _version_ | 1876441393535123456 |
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| author | Thiago Barbosa Batista |
| author_facet | Thiago Barbosa Batista |
| contents | Priming and stress under high humidity and temperature on thephysiological quality of Brachiaria brizantha cv. MG-5 seeds Thiago Barbosa Batista Eliana Duarte Cardoso Flávio Ferreira da Silva Binotti Edilson Costa Marco Eustáquio de Sá Agrociencias nitrate Palisade grass seed deterioration expression of vigor Palisade grass is a forage plant that is widely used in pasture cropping in the Braziliansavannah. The aim of this experiment was to evaluate palisade grass (Brachiaria brizantha cv. MG–5) seedssubjected to priming and stress at high humidity and temperature (before and after conditioning). Theexperimental design was completely randomized in a 2x5 factorial arrangement. Seeds were exposed tostress under high humidity and temperature (before and after conditioning) and five priming treatments[Water (Control), potassium nitrate (KNO3) at 0.2%, calcium nitrate Ca(NO3)2 at 0.2%, gibberellin (GA3)at 0.2% and glucose at 10%] with four replications. Two experiments were performed: Experiment I - seedwith chemical scarification using H2SO4 and Experiment II - without scarification. The stress on the seedwas applied using artificial aging at 41°C for 96 hours. Seed priming was accomplished by immersion at25°C for 2 hours. Thereafter, the seeds were oven-dried at 35°C until they regained hygroscopicequilibrium. Seed germination and vigor were evaluated. Priming using KNO3 and Ca(NO3)2 producedseeds with high tolerance to stress under high temperature, and this process is efficient to overcomedormancy. 2016 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303044042014 https://www.redalyc.org/journal/3030/303044042014/ https://www.redalyc.org/journal/3030/303044042014/html/ https://www.redalyc.org/journal/3030/303044042014/303044042014.epub https://www.redalyc.org/journal/3030/303044042014/movil en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Num.1 Vol.38 |
| format | Artículo científico |
| id | redalyc_303044042014 |
| institution | Redalyc |
| language | en |
| publishDate | 2016 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Priming and stress under high humidity and temperature on thephysiological quality of Brachiaria brizantha cv. MG-5 seeds Thiago Barbosa Batista Agrociencias nitrate Palisade grass seed deterioration expression of vigor Priming and stress under high humidity and temperature on thephysiological quality of Brachiaria brizantha cv. MG-5 seeds Thiago Barbosa Batista Eliana Duarte Cardoso Flávio Ferreira da Silva Binotti Edilson Costa Marco Eustáquio de Sá Agrociencias nitrate Palisade grass seed deterioration expression of vigor Palisade grass is a forage plant that is widely used in pasture cropping in the Braziliansavannah. The aim of this experiment was to evaluate palisade grass (Brachiaria brizantha cv. MG–5) seedssubjected to priming and stress at high humidity and temperature (before and after conditioning). Theexperimental design was completely randomized in a 2x5 factorial arrangement. Seeds were exposed tostress under high humidity and temperature (before and after conditioning) and five priming treatments[Water (Control), potassium nitrate (KNO3) at 0.2%, calcium nitrate Ca(NO3)2 at 0.2%, gibberellin (GA3)at 0.2% and glucose at 10%] with four replications. Two experiments were performed: Experiment I - seedwith chemical scarification using H2SO4 and Experiment II - without scarification. The stress on the seedwas applied using artificial aging at 41°C for 96 hours. Seed priming was accomplished by immersion at25°C for 2 hours. Thereafter, the seeds were oven-dried at 35°C until they regained hygroscopicequilibrium. Seed germination and vigor were evaluated. Priming using KNO3 and Ca(NO3)2 producedseeds with high tolerance to stress under high temperature, and this process is efficient to overcomedormancy. 2016 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303044042014 https://www.redalyc.org/journal/3030/303044042014/ https://www.redalyc.org/journal/3030/303044042014/html/ https://www.redalyc.org/journal/3030/303044042014/303044042014.epub https://www.redalyc.org/journal/3030/303044042014/movil en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Num.1 Vol.38 |
| title | Priming and stress under high humidity and temperature on thephysiological quality of Brachiaria brizantha cv. MG-5 seeds |
| topic | Agrociencias nitrate Palisade grass seed deterioration expression of vigor |
| url | https://www.redalyc.org/articulo.oa?id=303044042014 https://www.redalyc.org/journal/3030/303044042014/ https://www.redalyc.org/journal/3030/303044042014/html/ https://www.redalyc.org/journal/3030/303044042014/303044042014.epub https://www.redalyc.org/journal/3030/303044042014/movil |