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Germinação de sementes de espécies arbóreas nativas da caatinga em diferentes temperaturas
| Content Provider | Semantic Scholar |
|---|---|
| Author | Oliveira, Gilmara M. Barbosa, Laise Guerra Matias, Janete R. Silva, J. E. S. Ribeiro, Rafael Coelho Dantas, Bárbara França |
| Copyright Year | 2014 |
| Abstract | Native tree species of the Caatinga of northeastern Brazil have great economic importance due to their multiple uses, such as for the production of honey , fodder , timber, energy, ornamental and herbal products , resulting in serious problems for the most used species To obtain information about the seed behavior of native tree species of the Caatinga at different temperatures , this study was conducted at Embrapa Semiarid , Petrolina , Pernambuco , Brazil . Seeds Sideroxylon obtusifolium (Roem & Schult. ) Myracrodruon urundeuva (Fr. All.), Amburana cearensis (All.) and Schinopsis brasiliensis ( Engel. ) germinated on paper rolls at 20, 25, 30and 35°C in a completely randomized design with 5 replications of 10 seeds for S. obtusifolium , S. brasiliensis and A. cearensis and five replicates of 50 seeds of M. urundeuva . Germination was evaluated every 2 days, obtaining the germination curve, final germination ( % ) and germination speed index(GSI). Seeds of S. obtusifolium and M. urundeuva had higher germination percentage and speed at 20°C. Seeds of S. brasiliensis had higher germination, by about 50 %, at 25 and 30°C and higher GSI at 30°C. Among the seeds of A. cearensis the highest germination (96 %) was observed at 30°C, however, the GSI was higher at 35°C. These results indicate that each species has specific optimum temperature for the germination process. |
| File Format | PDF HTM / HTML |
| Volume Number | 10 |
| Alternate Webpage(s) | https://www.alice.cnptia.embrapa.br/bitstream/doc/995437/1/Barbara32014.pdf |
| Alternate Webpage(s) | https://www.scientiaplena.org.br/sp/article/download/1790/954 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
