Análise de características morfológicas e fisiológicas em veredas com diferentes níveis de secamento

Abstract

Plants under the effect of water stress can present morphological and physiological changes, making the plant species able to survive in this type of stress condition. The objective of this work was to investigate whether Copaifera oblongifolia (Fabaceae) and Macairea radula (Melastomataceae) species in paths under different levels of dryness show differences in plant architecture, leaf compound levels and leaf fluctuating asymmetry. Sampling took place in northern Minas Gerais in two areas of palm swamp, one in an advanced stage of drying and the other in an early stage of drying. Data on morphological characteristics (height, circumference above the breast and crown width), leaf compounds (chlorophylls, nitrogen and flavonols) and leaf fluctuating asymmetry of 15 individuals of each species in each area were collected in each area. The results showed that the structural characteristics of the studied species did not differ between the palm swamp. Similarly, the foliar compounds did not show significant differences in their concentrations between the plants of the two studied paths. Finally, both species also did not show significant results in relation to leaf asymmetry. This work indicates that the water stress present in the vereda does not seem to influence the morphological characteristics and leaf compounds of C. oblongifolia and M. radula due to rain.