|
|
|
|
|
| Monteiro, Renata Aparecida; Fioreze, Samuel Luiz; Novaes, Márcia Aparecida Gomes. |
| Erythrina speciosa is specie suitable for forest recuperation programm. As its seeds coats are impermeable to water absorption, the aim of this work was to study the change of biometric characters during seed germination and analyse the physiological quality of E. speciosa seeds from different sources. Therefore, seeds were collected from Capão Bonito and Ribeirão Grande, two municipilties of São Paulo State, Brazil, and were scarified. For each replicate were used 15 seeds. The germination test was conducted at 25 °C with photoperiod of 12 hours, using vermiculite packed in seedling boxes. We evaluated the germination percentage, germination speed index, seedling stem diameter and number of leaves. The results showed that the seeds of different sources... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Espécie nativa; Germinação; Caracteres biométricos; Fabaceae; Mulungu.. |
| Ano: 2016 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/10412 |
| |
|
| |
|
|
| MENEZES, K. A. S.; ESCOBAR, I. E. C.; FRAIZ, A. C. R.; MARTINS, L. M. V.; FERNANDES JUNIOR, P. I.. |
| Legume-rhizobia symbiosis is a cross-kingdom association that results in large mounts of nitrogen incorporated in food webs. For the Brazilian semi-arid region, data on genetic variability and symbiotic efficiency of Papilionoidae rhizobial communities are very scarce. The aim of this study was to evaluate the genetic variability and the symbiotic efficiency of eight rhizobial isolates obtained from ?mulungu? (Erythrina velutina Willd.) nodules. For 16S rRNA gene sequencing, the genomic DNA was extracted using a commercial kit, amplified with universal primers, and subjected to sequencing reactions. For the isolate ESA 71, PCR amplifications for nodC and nodA genes were attempted. Rhizobial efficiency was assessed by two greenhouse experiments. The first... |
| Tipo: Artigo de periódico |
Palavras-chave: Fixação biológica de notrogenio; Leguminosa arbórea; Planta nativa; Biological nitrogen fixation.; Variabilidade genética; Rizóbio; Caatinga; Mulungu.. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1062237 |
| |
|
|
|
