Artigo
Influence of physical protectors with different filters on the initial development of Peltophorum dubium (Spreng.) Taub seedlings
Registro en:
African Journal of Agricultural Research, v. 9, n. 42, p. 3126-3132, 2014.
1991-637X
10.5897/ajar12.2156
ISSN1991-637X-2014-09-42-3126-3132.pdf
4211432128816409
Autor
Klein, Jeferson
Rodrigues, João Domingos [UNESP]
Guimaraes, Vandeir Francisco
Rampim, Leandro
Kestring, Debora
Schwantes, Daniel
Fey, Rubens
Aleixo, Valdemir
Richart, Alfredo
Ferronato, Michelli Carline
Borsoi, Augustinho
Resumen
The use of physical protectors has been considered as an efficient technique for tillage farming of different species, mainly native ones. Based on the importance of the species, Peltophorum dubium for revegetation of degraded areas, this study evaluated the emergence, survival and initial development of P. dubium seedlings under the influence of physical protectors with different filters. Thus, the following treatments were adopted: absence of physical protector (APP), transparent physical protector (TPP), transparent physical protector + blue cellophane (BPP) and transparent physical protector + red cellophane (RPP). The evaluated characteristics were: emergence velocity index (EVI), seedling survival and emergence percentage, plant height, leaf area and root collar diameter. All of these physical protectors increased the mean values of EVI and survival. In conclusion, the emergence speed and initial development of P. dubium (Spreng.) seedlings grown in the interior of physical protectors, independent on the filters, presented positive results. The reduction on the light intensity interferes positively in the initial growth of these plants. Pontifical Catholic University, PUC, City of Toledo, Parana state, Brazil Universidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Botânica, Instituto de Biociências, Botucatu, AC Rubião Junior, Jardim Santo Inácio (Rubião Junior), CEP 18618970, SP, Brasil State University of West Parana, Unioeste, CCA/PPGA, Pernambuco Street No. 1777, P.O. Box 9, Zip Code 85960-000, city of Marechal Candido Rondon, Parana State, Brazil Federal University of South Border - UFFS, city of Laranjeiras do Sul, Parana State, Brazil Universidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Botânica, Instituto de Biociências, Botucatu, AC Rubião Junior, Jardim Santo Inácio (Rubião Junior), CEP 18618970, SP, Brasil