Sexual and asexual propagation of Baccharis dracunculifolia DC., a dioecious medicinal Brazilian shrub

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dc.creatorMaíra Maciel Tomazzoli
dc.creatorWanderlei do Amaral
dc.creatorJéssica de Cássia Tomasi
dc.creatorAndreza Cerioni Belniaki
dc.creatorMaristela Panobianco
dc.creatorWalmes Marques Zeviani
dc.creatorCícero Deschamps
dc.date2023
dc.date.accessioned2026-07-07T03:53:58Z
dc.descriptionBaccharis dracunculifolia DC. is a pioneer plant native from Brazil that has great importance due to its secondary metabolites (essential oil and Brazilian green propolis) and its potential in the recovery of degraded areas. The main goal of this study was to evaluate the propagation techniques of B. dracunculifolia by sexual reproduction and asexual propagation of male and female stem cuttings. For reproduction, female individuals from a natural population were periodically monitored for their reproductive development and their diaspores were collected to evaluate the maximum dry mass accumulation to determine physiological maturity. The germination test was performed by testing four temperatures (20, 25, 30, and 20-30°C), in addition to the germination speed index (GSI) and first count. For vegetative propagation, stem cuttings (8 cm) of male and female individuals were treated with an indole butyric acid (IBA) solution at 0, 1,500, 3,000, 4,500, and 6,000 mg L−1. The cuttings were evaluated for mortality, survival, rooting, sprouting, leaf retention, callogenesis, number of roots, and average length of roots (cm) after 120 days. The physiological maturity of diaspores occurred at 40 days after anthesis, which was the best time for collection in the field. The temperatures of 25 or 20-30°C should be used in the germination tests of the species. The first count was identified four days after sowing and the last count after 11 days. The rooting of B. dracunculifolia cuttings is very low. Sex did not influence the evaluated parameters, but increasing IBA doses positively influenced rooting, number of roots, and average length of roots and negatively influenced calluses formation.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303075473014
dc.identifierhttps://www.redalyc.org/journal/3030/303075473014/
dc.identifierhttps://www.redalyc.org/journal/3030/303075473014/html/
dc.identifierhttps://www.redalyc.org/journal/3030/303075473014/303075473014.epub
dc.identifierhttps://www.redalyc.org/journal/3030/303075473014/movil
dc.identifier10.4025/actasciagron.v45i1.56750
dc.identifier.urihttp://hdl.handle.net/123456789/446649
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Vol.45
dc.subjectAgrociencias
dc.titleSexual and asexual propagation of Baccharis dracunculifolia DC., a dioecious medicinal Brazilian shrub
dc.typeartículo científico

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Acta Scientiarum. Agronomy - Universidade Estadual de Maringá