3.9 Article

TECNICAS DE PRODUCAO DE MUDAS DE ESPECIES ARBOREAS E USO DE MULCHING EM AREA ALTERADA

Journal

REVISTA ARVORE
Volume 45, Issue -, Pages -

Publisher

UNIV FEDERAL VICOSA
DOI: 10.1590/1806-908820210000020

Keywords

Plastic bag; Tubs; Morphological and physiological attributes

Categories

Funding

  1. Coordination for the Improvement of Higher Education Personnel (CAPES)
  2. Environmental Fund of the Caixa Economica Federal (AC FSA CAIXA) [015,007/2012]

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The study showed that using plastic bags and mulching can promote the growth of Casearia sylvestris, Handroanthus heptaphyllus, and Parapiptadenia rigida seedlings in altered areas. However, there was no significant impact on physiological parameters among different treatments.
Among the methods used for the restoration of altered areas, the planting of native tree seedlings is one of the most traditional ones. The objective of this study was to evaluate the survival and initial growth of Casearia sylvestris Sw, Handroanthus heptaphyllus Vell. Mattos and Parapiptadenia rigida Benth. Brenan seedlings in altered areas, according to containers used in nursery seedlings production and use of mulching on planting, using morphological and physiological attributes. The experiment was conducted in a 2x2 factorial scheme. The type of containers used (plastic bag and tube) was considered, and the presence or absence of mulching around the seedlings. The three species presented similar survival averages at 24 months. The rates between the treatments were 72.5; 85.0 and 80.0%, respectively. The use of plastic bags had a positive impact on the height (IncH) and stem collar (IncDC), crown area (CA) and shoot dry mass (SDM) for C. sylvestris and H. heptaphyllus, while for P. rigida, the use of plastic bags favored the CA and the SDM. The presence of mulching favored the attributes IncH, IncDC, AC, and MSPA of H. heptaphyllus, as well as CA and SDM of C. sylvestris. Regarding the physiological parameters (relative levels of chlorophyll a and b and fluorescence of chlorophyll a), no difference was observed between the treatments tested. It is recommended that for the planting of seedlings of C. sylvestris, H. heptaphyllus, and P. rigida, in altered areas by anthropization, they be produced in a 1.5 L plastic bag, aiming at greater field growth. Also, in the planting of C. sylvestris and H. heptaphyllus the mulching should be used to favor their growth.

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