Abstract
We evaluated the phenodynamics of Solanum mauritianum Scop. in a forest plantation to check the ecological behavior of this species in restoration condition. Twelve trees were observed over 24 months, according to regrowth, flowering, fruiting and defoliation. The phenophases were correlated with the photoperiod, climatic variables, maximum, average, minimum temperature and precipitation through Pearson´s correlation. The species exhibited over the year highly synchronic, flowering and fruiting. The flowering occurred from January to December, with floral buds being observed simultaneously with ripe fruits, reaching a maximum dispersion in February. Temperatures below 10°C and frosts inhibited the leaf re-sprouts, promoting a leaf deciduous peak in March and June. The permanent availability of resources as flowers and fruits and the resilience of vegetative phenophases in response to severe frosts make S. mauritianum an adapted species of highly ecological potential to be used in regional restoration projects.
Highlights
Phenology is the study of the stages of plant life cycle events and their temporal occurrence throughout the year, according to the periodic biological events related to repetitive changes and interrelations in abiotic and biotic factors (MORELLATO et al, 2010)
Frosts were observed in July and August 2013, which caused the reduction of degrees Celsius in the average monthly minimum temperature (Figure 2)
The vegetative growth of S. mauritianum occurred during every month of the year (Figure 3A)
Summary
Phenology is the study of the stages of plant life cycle events and their temporal occurrence throughout the year, according to the periodic biological events related to repetitive changes and interrelations in abiotic and biotic factors (MORELLATO et al, 2010). According to Alves and Silva (2013), precipitation, minimum temperature, photoperiodism, and solar radiation would be related to the phenophases. Seasonality, periodism and synchrony are reported in phenological studies, where the rate of leaf loss is determined by the severity of the season (MORELLATO et al, 2000). Variations in the climatic patterns interfere in blooming, fructification, and in the vegetative stages of a particular species. The blooming and fruiting seasons may differ between individuals of the same species and between regions (FELIPPI et al, 2012)
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