ECOPHYSOLOGY OF GRAVIOLA (Annona Muricata) AND LEMON TAHITI (Citrus latifolia)
Graviola. Tahiti lemon. Ecophysiolog
Soursop (Annona muricata) is one of the most important crops in the Anonaceae family as well as the 'Tahiti' lemon (Citrus latifolia) within the Citrus genus in terms of production and cultivated area in Brazil. Interest in these crops has increased considerably in recent years because several studies have demonstrated the effectiveness of secondary metabolites from these plants against cancer and other diseases caused by oxidative stress. These crops, however, are characteristic of small rural properties, where in many orchards modern technology is not used, limiting the potential of cultivation, and there is little research carried out related to the ecophysiology of these species in the climate of the Amazon region. Therefore, the objective of this study is to characterize the ecophysiological behavior of soursop (Anona muricata) and Tahiti lemon (Citrus latifólia) on a property in the São Raimundo Community in the municipality of Santarém, Pará. For this, individuals will be selected at random, where 8 leaves will be chosen that are completely expanded and do not show pathologies, nutritional deficiencies or signs of herbivory. The following variables will be measured with the aid of a gas analyzer in the infrared range - IRGA (Infraed Gas Analyzer) model LCPRO + ADC: Photosynthesis (A µmol m-2s-1); Evapotranspiration (E mmol m-2 s-1); Stomatal conductance (gsmol m-2s-1); Leaf temperature (Tleaf ° C); Internal carbon, nitrogen demand index, chlorophyll index, flavonoids and anthocyanins so that the ecophysiological profile of these species in the microclimate in which they are planted will be known and thus, in this way contribute to the full development of soursop and lemon plantations in the region of Baixo Amazonas, specifically in the municipality of Santarém.