التفاصيل البيبلوغرافية
| العنوان: |
SURVIVAL EVALUATION AND SOIL REINFORCEMENT CAPACITY OF FIVE REOPHYTES SPECIES OF THE ATLANTIC RAINFOREST BIOME. |
| Alternate Title: |
Avaliação da sobrevivência e capacidade de reforço do solo de cinco espécies reófitas do bioma mata atlântica. (Portuguese) |
| المؤلفون: |
Dewes, Junior Joel, Belmonte Maffra, Charles Rodrigo, dos Santos Sousa, Rita, Jaques Sutili, Fabrício |
| المصدر: |
Floresta; jul-set2019, Vol. 49 Issue 3, p477-484, 8p |
| مصطلحات موضوعية: |
BIOMES, RAIN forests, TUKEY'S test, PLANT species, SPECIES, PLANT spacing |
| الشركة/الكيان: |
UNIVERSIDADE Federal de Santa Maria |
| Abstract (English): |
The aim of this study was to evaluate the survival rate, the vegetative development and vertical pullout resistance of Phyllanthus sellowianus, Salix humboldtiana, Gymnanthes schottiana, Cephallanthus glabratus and Ludwigia elegans propagated by live cuttings. The experiment was conducted at the Federal University of Santa Maria, RS. The experiment was installed in October 2015 and evaluated in June 2016. Experiment was conducted in randomized blocks design with use of 5 plant species and 3 replications. In each block were planted 3 live cuttings of each species, with the total of 45 cuttings for the 3 blocks. The space between plants was of 1 x 1 m. Live cuttings average diameter was 1.7 cm and 60 cm long. Were evaluated the survival rate, morphological variables from shoots, as well as the vertical pullout resistance for each species. The observed survival rates were: P. sellowianus (100%), S. humboldtiana (100%), G. schottiana (83%), %), C. glabratus (67%) e L. elegans (50%), which are statistically different among themselves by Chi-square test (χ ²) at 5% level of significance. The variables, length and diameter of shoots, as well as the vertical pullout resistance are statistically different between species by Tukey’s test at 5% level of significance, and the best results were observed for P. sellowianus and less favorable to L. elegans. The results showed that the evaluated species, excluding L. elegans, had from great to good survival rates. The species P. sellowianus and L. elegans had the major and minor soil mechanical reinforcement capacity, respectively. [ABSTRACT FROM AUTHOR] |
| Abstract (Portuguese): |
O objetivo deste trabalho foi avaliar a sobrevivência, o desenvolvimento vegetativo e a resistência ao arranquio de Phyllanthus sellowianus, Salix humboldtiana, Gymnanthes schottiana, Cephallanthus glabratus e Ludwigia elegans propagadas por estacas vivas. O experimento foi conduzido a campo na Universidade Federal de Santa Maria, RS. O experimento foi instalado em outubro (2015) e avaliado em junho (2016). O delineamento experimental utilizado foi blocos inteiramente casualizados com 5 espécies vegetais e 3 repetições. Cada bloco recebeu 3 estacas de cada espécie, totalizando 45 estacas. O espaçamento entre plantas foi de 1x1 m. Utilizaramse estacas com diâmetro médio de 1,7 cm e 60 cm de comprimento. Foi avaliada a taxa de sobrevivência, variáveis morfológicas da parte aérea, bem como a resistência ao arranquio para cada espécie. As taxas de sobrevivência observadas foram: P. sellowianus (100%), S. humboldtiana (100%), G. schottiana (83%), C. glabratus (67%) e L. elegans (50%), as quais diferiram estatisticamente entre si pelo teste Qui-quadrado (χ²) a 5 % de probabilidade de erro. As variáveis, comprimento e diâmetro de brotos, assim como a resistência ao arranquio diferiram estatisticamente entre espécies pelo teste de Tukey a 5% de probabilidade de erro, sendo que os melhores resultados foram observados para P. sellowianus e os menos promissores para L. elegans. Conclui-se que as espécies estudadas, exceto L. elegans, apresentaram de ótimas a boas taxas de sobrevivência. As espécies P. sellowianus e L. elegans apresentaram a maior e menor capacidade de reforço mecânico do solo, respectivamente. [ABSTRACT FROM AUTHOR] |
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