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

Abstract

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.

Water availability and substrate in the emergency and initial development of Bauhinia scandens L.

“…In the nursery, the substrate is one of the most important external factors from germination to seedling development (Dutra et al, 2012). An ideal substrate has desirable chemical, physical, and biological characteristics for the growth of the root system, ensuring the supply of water, nutrients and root support during the entire period of seedling formation (Alves et al, 2017).…”

Emergence and Early Seedling Growth of Dilodendron Bipinnatum Radlk in Different Substrates

“…Several studies have evaluated suitable substrates for early seedling growth of different native species, such as vegetable soil for Zizyphus joazeiro (Rhamnaceae) (BRAGA JUNIOR et al, 2010) and Anadenanthera colubrina (Fabaceae) (RODRIGUES et al, 2007), sand for Erythrina velutina (Fabaceae) (ALVES et al, 2008), and washed sand + humus for Odorous sicana (Fabaceae) (LIMA et al, 2010). Each species has requirements regarding substrate that promotes seedling emergence and development, therefore, it is extremely important to study substrates for the propagation of forest species, in order to identify the one that provides the best emergence and early seedling development (ALVES et al, 2017).…”

Seed position and influences on Caesalpinia pulcherrima germination and reserve proteins

“…However, despite of having so many applications, C. pulcherrima does not have sufficient information to subsidize large-scale seedling production , since there are few studies involving the morphometric characteristics of fruits and seeds, or Ornamental Horticulture ISSN 2447-536X | httpS://orNameNtalhortIculture.emNuveNS.com.br/rbho information which can be used in germination tests (Araújo Neto et al, 2014). Thus, some seed propagation studies of the species have begun to emerge in recent years (Alves et al, 2017). However, according to Oliveira et al (2010) there is a great lack of germination of the species at the time of production of seedlings.…”