Fenologia da Luetzelburgia auricula (Allemão) Ducke

Abstract

The study of the behavior of plant phenophases in relation to meteorological changes in terrestrial ecosystems contributes to the understanding of changes on the planet. The objective of this study was to investigate the phenology of the species Luetzelburgia auriculata and its correlation with meteorological data in an area of Caatinga, in the municipality of Solânea, Paraíba. The study covered 19 individuals, with reproductive and vegetative phenological estimates obtained fortnightly, evaluated by the Fournier Index and correlated with meteorological data and the Synchrony Index. During the seven years of follow-up, five phenological phenomena were recorded. Reproductive phenophases, such as buds, anthesis and fruiting, occurred moderately, with low synchrony or being asynchronous. In contrast, the budding and senescence phenophases showed a statistically significant relationship with the period of greater or no rainfall. These data show that climatic and environmental factors influence the behavior of the species in the region studied.