Abstract
In Maranhão babassu forest, the decomposed babassu biomass (DBB) has been used empirically by several farmers for the production of Jacaranda mimosifolia seedlings. This study aimed to evaluate the potential of DBB as a substrate. The substrate compositions were S1: 100% soil (control); S2: 20% DBB; S3: 40% DBB; S4: 60% DBB; S5: 80% DBB and S6: 100% DBB. The experiment was carried out from October to December 2019 at Federal University of Maranhão, Chapadinha, Maranhão, Brazil. It was observed the use of DBB enhances the emergency speed index and germination percentage, besides resulted in the development of the aerial part and the root development. Thus, DBB may be used as an alternative substrate for the production of Jacaranda mimosifolia seedlings. It is recommended to include 40% babassu biomass with 60% soil in the composition of the substrate to improve the morphological development of Jacaranda mimosifolia seedlings.
Highlights
In Brazil, the population’s awareness of environmental problems boosted the demand for native forest seedlings for reforestation and recovery of deforested areas, allowing efficient recovery of vegetation cover, essential for the restoration of environmental balance (Gonçalves et al, 2015; Soares et al, 2017; Freitas et al, 2017).Among the forest species with the potential to be used in reforestation projects, Jacaranda mimosifolia D
The use of decomposed babassu biomass (DBB) resulted in the development of the aerial part of the Jacaranda seedlings, with effect for leaf area (LA) (P
This occurs due to the structure and capacity of aeration and water retention of the substrates analyzed in these DBB properties, since these characteristics influence the water absorption rate and the biochemical reactions related to germination (Martins et al, 2013; Oliveira et al, 2015)
Summary
In Brazil, the population’s awareness of environmental problems boosted the demand for native forest seedlings for reforestation and recovery of deforested areas, allowing efficient recovery of vegetation cover, essential for the restoration of environmental balance (Gonçalves et al, 2015; Soares et al, 2017; Freitas et al, 2017).Among the forest species with the potential to be used in reforestation projects, Jacaranda mimosifolia D. In Brazil, the population’s awareness of environmental problems boosted the demand for native forest seedlings for reforestation and recovery of deforested areas, allowing efficient recovery of vegetation cover, essential for the restoration of environmental balance (Gonçalves et al, 2015; Soares et al, 2017; Freitas et al, 2017). A tree native to Brazil, belonging to the Bignoniaceae family (Zaghloul et al 2011). This tree is widely distributed in tropical and subtropical regions of the world (Moharram & Marzouk 2007). It is used in urban afforestation and as an ornamental plant (Socolowski & Takaki, 2004). The production of quality forest seedlings is conditioned to the substrate used during leading and management since seed germination and the initial development of species are linked to the particularities of each substrate (Caldeira et al, 2012)
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