Substrate in the emergence and initial growth of seedlings of Caesalpinia pulcherrima

Caesalpinia pulcherrima is an exotic species belongs to the Fabaceae family commonly known as flamboyant-mirim, and widely used for urban forestry. This study aimed to evaluate the effect of different substrates on the emergence and early seedlings growth of C. pulcherrima . The experiment was condu...

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Bibliographic Details
Published in:Ciência rural 2017, Vol.47 (3)
Main Authors: Alves, Magnólia Martins, Alves, Edna Ursulino, Araújo, Luciana Rodrigues de, Lima, Maria de Lourdes dos Santos
Format: Article
Language:eng ; por
Subjects:
AGRONOMY
Caesalpinia pulcherrima
Design of experiments
Dust
espécie ornamental
Experimental design
Fabaceae
Flamboyant mirim
Forestry
Germination
Introduced species
Laboratories
Rice
Sand
Sandy soils
Seedlings
Seeds
sementes
Shoots
Soils
Straw
Substrates
Vegetables
Vermiculite
vigor
Wood
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Summary:Caesalpinia pulcherrima is an exotic species belongs to the Fabaceae family commonly known as flamboyant-mirim, and widely used for urban forestry. This study aimed to evaluate the effect of different substrates on the emergence and early seedlings growth of C. pulcherrima . The experiment was conducted in a greenhouse belonging to the Centro de Ciências Agrárias, Universidade Federal da Paraíba. The experimental design was completely randomized and treatments had 14 substrates: sand, vegetable soil, vermiculite, wood dust, carbonized rice straw, vegetable soil + sand 1:1, sand + wood dust 1:1, sand + carbonized rice straw 1:1, earth + wood dust 1:1, vegetable soil + carbonized rice straw 1:1, vermiculite + sand 1:1, vermiculite + wood dust 1:1, vermiculite + earth 1:1 and vermiculite + carbonized rice straw 1:1. Evaluation of the effect of the treatments was through the following determinations: percentage of emergency, first count, index of germination speed, length and dry weight of roots and shoots. The vermiculite, vegetable soil + sand 1:1, vermiculite + sand 1:1, vermiculite + saw dust 1:1, are suitable for emergence and early growth of seedlings of Caesalpinia pulcherrima . Substrates saw dust and carbonized rice straw were responsible for the worst performers on emergence and seedling development. RESUMO: Caesalpinia pulcherrima é uma espécie exótica que pertence à família Fabaceae vulgarmente conhecida como flamboyant-mirim, e amplamente utilizadas para arborização urbana. O objetivo do trabalho foi avaliar o efeito de diferentes substratos sobre a emergência e crescimento inicial de plântulas de C. pulcherrima . O experimento foi conduzido em casa de vegetação pertencente ao Centro de Ciências Agrárias da Universidade Federal da Paraíba. O delineamento experimental foi inteiramente casualizado e os tratamentos foram compostos por 14 substratos: areia, terra vegetal, vermiculita, pó de madeira, palha de arroz carbonizada, areia + terra vegetal 1:1, areia + pó de madeira 1:1, areia + palha de arroz carbonizada 1:1, terra vegetal + pó de madeira 1:1, terra vegetal + palha de arroz carbonizada 1:1, vermiculita + areia 1:1, vermiculita + pó de madeira 1:1, vermiculita + terra vegetal 1:1 e vermiculita + palha de arroz de carbonizada 1:1. A avaliação do efeito dos tratamentos foi através das seguintes determinações: porcentagem de emergência, primeira contagem, índice de velocidade de emergência, comprimento e massa seca de raízes e parte aérea. A ver
ISSN:0103-8478
1678-4596
0103-8478
1678-4596
DOI:10.1590/0103-8478cr20150433