Loading...
Please wait, while we are loading the content...
Similar Documents
Sobrevivência e crescimento de espécies nativas do Cerrado após semeadura direta na recuperação de pastagem abandonada
| Content Provider | Semantic Scholar |
|---|---|
| Author | Oliveira, Maria Cristina De Leite, Jussara Barbosa Galdino, Olga Porto Da Silva Ogata, R. S. Silva, Dulce Alves Da Ribeiro, José Felipe |
| Copyright Year | 2019 |
| Abstract | Considering that studies on the survival and growth of native species via direct seeding in Brazilian savannas are still scarce, the present work adds information for this technique with 36 native tree species of the Cerrado biome in relation to emergence, survival and growth in the field over three years. Thus, 11,550 seeds were sown in 2,520 pits, spaced 1×1 m, in two areas of 5,000 m2 each, in an abandoned pasture area on a Neossolo Regolítico soil at Fazenda Entre Rios, Federal District, in central Brazil, to evaluate emergence, survival and growth. Each pit received from two to ten seeds of a species, without any treatment of dormancy breaking. The emergency rate was evaluated after 120 days, and the survival of the emergents after one, two and three years. In addition, its height growth was evaluated after three years. Of the 36 species, four presented between 10% and 20% emergence and four (Copaifera langsdorffii, Hymenaea courbaril, Eugenia dysenterica and Stryphnodendron adstringens) above 20% and survival >80% after one year. In this same period, 24 of the tested species presented survival rate >60%. In general, the average survival rate of individuals in the three years was low (53%). Due to the typical slow growth in height of the individuals of the Cerrado species considered (average of 10.8 cm in three years), in the recovery of similar areas, it is also important to consider the planting of other forms of life (herbaceous and shrub) of native species, perhaps even at higher densities, to occupy the soil more quickly and thus seek to compete with exotic grasses. Palavras-chave bioma Cerrado, diásporo, restauração ecológica |
| Starting Page | 313 |
| Ending Page | 327 |
| Page Count | 15 |
| File Format | PDF HTM / HTML |
| DOI | 10.3897/neotropical.14.e38290 |
| Volume Number | 14 |
| Alternate Webpage(s) | https://neotropical.pensoft.net/lib/ajax_srv/generate_pdf.php?document_id=38290&file_id=0&readonly_preview=1 |
| Alternate Webpage(s) | https://doi.org/10.3897/neotropical.14.e38290 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
