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Avaliação Fisiológica De Sementes Visando Projetos De Restauração Ecológica Com Semeadura Direta De Espécies Nativas Do Cerrado
| Content Provider | Semantic Scholar |
|---|---|
| Author | Teles, Thiago Sousa Barreira, Sybelle |
| Copyright Year | 2018 |
| Abstract | The deforestation in the Cerrado have not ceased over the last decades, ocurring mainly due to the starting of new agricultural and cattle raising areas, sometimes neglected after years of cultivation. It is necessary to restore those areas and the physiological quality of the seeds is a decisive fator for the success of the activity. Thus, this research aimed to evaluate the physiological quality of seeds of Myracrodruon urundeuva Allemão., Dipteryx alata Vogel, Jacaranda cuspidifolia, Handroanthus heptaphyllus (Vell.) Mattos, Handroanthus impetiginosus (Mart. ex. DC), Hymenaea courbaril L., Qualea grandiflora Mart. and Enterolobium contortisiliquum (Vell.) Morong (minimum of 2 matrices), obtaining the germination rate (%) and humidity (%) of the seeds. Furthermore, there have been carried out the weighing of one thousand seeds (WTS) and calculated the index of the germination speed (IVG). In order to attain the germination rate, a test with four repetitions of 25 seeds for each evaluated matrix was performed. During the humidity and PMS analyses, the RAS procedures (2009) were taken into account. The results of the analysed parameters were submitted to the analysis of variance and the diferences among the average of each matrix were evaluated by the Tukey test, with significance level of 5%. The accomplished results for the germination and humidity rate varied from 93,5% 63,5% and 11,2% 5,6%, respectively and did not present a significant difference among matrices. The same aspect was observed for the IVG, the values of which varied from 3,96 to 1,36. Differently, the PMS presented significant difference among matrices being the Hymenaea courbaril the one that showed the greatest variation among the matrices. |
| Starting Page | 192 |
| Ending Page | 199 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.18677/encibio_2018a18 |
| Volume Number | 15 |
| Alternate Webpage(s) | http://www.conhecer.org.br/enciclop/2018a/agrar/avaliacao%20fisiologica.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
