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| Ferraz, Denes; Ramalho, Werther Pereira; Vale, Luís Sérgio Rodrigues. |
| The production of forest species that present seedlings with exogenous dormancy is limited by low germination rates, which can be overcome by rupturing or weakening the tegument. This study aimed to evaluate the efficiency of low-cost methods of overcoming dormancy and determine the effect of storage on the seeds of Enterolobium contortisiliquum. Four storage periods were used, freshly collected seeds (0), stored for 6, 12 and 18 months, and four methods were applied, mechanical scarification and immersion in water (EI), mechanical scarification (ES), immersion in water (IM) and control (TE). We obtained the percentage values of seedling emergence (EP) and the mean emergence time (TME). Conductivity and moisture were obtained as indicators of the physical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Exogenous dormancy; Immersion; Mechanical scarification; Leguminous plants; Seedling production; Pacara earpod tree.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42602 |
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| Ferraz, Denes; Ramalho, Werther Pereira; Vale, Luís Sérgio Rodrigues. |
| The production of forest species that present seedlings with exogenous dormancy is limited by low germination rates, which can be overcome by rupturing or weakening the tegument. This study aimed to evaluate the efficiency of low-cost methods of overcoming dormancy and determine the effect of storage on the seeds of Enterolobium contortisiliquum. Four storage periods were used, freshly collected seeds (0), stored for 6, 12 and 18 months, and four methods were applied, mechanical scarification and immersion in water (EI), mechanical scarification (ES), immersion in water (IM) and control (TE). We obtained the percentage values of seedling emergence (EP) and the mean emergence time (TME). Conductivity and moisture were obtained as indicators of the physical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Exogenous dormancy; Immersion; Mechanical scarification; Leguminous plants; Seedling production; Pacara earpod tree.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42602 |
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| Santos,J.B.; Ferreira,E.A.; Fialho,C.M.T.; Santos,E.A.; Galon,L.; Concenço,G.; Asiazú,I.; Silva,A.A.. |
| Biodegradation of glyphosate was evaluated in rhizospheric soil cultivated with Glycine max (soybean, var. BRS245-RR), Canavalia ensiformis and Stizolobium aterrimum. After these species were cultivated for 60 days, soil samples were collected, placed in flasks and treated with 14C-glyphosate. After 30 days of incubation, the total release rate of C-CO2 was determined along with microbial biomass (MBC), metabolic quotient (qCO2), and degradation percentage of the radio-labeled glyphosate released as 14C-CO2. A higher mass of rhizosphere-associated microorganisms was verified in the soil samples from pots cultivated with soybean, regardless of glyphosate addition. However, in the presence of the herbicide, this characteristic was the most negatively... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil microbial activity; Leguminous plants; Transgenic soybean. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582009000400016 |
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