DESENVOLVIMENTO DE Copaifera langsdorffii EM UMA ÁREA DE CERRADO EM REGENERAÇÃO SOB A INFLUÊNCIA DE Melinis minutiflora
Author(s) -
J. R. de Freitas,
Maria Inês Salgueiro Lima
Publication year - 2010
Publication title -
floresta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.386
H-Index - 13
eISSN - 1982-4688
pISSN - 0015-3826
DOI - 10.5380/rf.v40i2.17828
Subject(s) - horticulture , biology , forestry , botany , geography
Development of Copaifera langsdorffii in a savanna regeneration area under Melinis minutiflora influence. Invasive species can interfere in the development o f neighboring plants through production and release of chemicals into the environment. This study aimed to test the interference of Melinis minutiflora P. Beauv. on the germination and early growth of Copaifera langsdorffii Desf. We established two experimental groups (seeds and youn g plants), which were submitted to two treatments in the field: presence or absence of gra ss. Ten circular plots with four meters of diameter were demarcated. Each group of five was subjected t o one treatment on field, with and without grass influence. In the control, all the grass was abolis hed and in the remaining we made halos of 2 meters of diameter with grass in the center. The height of the plants and emergence seeds of de C. langsdorffii were monitored at every 20 days, during six months . The averages of emergency were compared using Test T and the size of plants used t he de Mann-Whitney Test. The average of emergency of the control plots was 0.412 ( ±0.85) and the circles of grass was 0,529 ( ± 1.34). The Mann Whitney test showed 72% of similarity between the treatments. The comparison between the two treatments showed no significant differences.
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