GEOGRAPHICAL DISTRIBUTION AND CHEMICAL COMPOSITION OF "CHAPÉU DE COURO" (Echinodorus spp.) IN THE RIO GRANDE DO SUL STATE, BRAZIL

Ciência Rural

Nedel, Jorge Luis³  Correa, Claudia Tatiane¹  Zuanazzi, José Angelo¹  Bevilaqua, Gilberto Antonio Peripolli² 

[1] Universidade Federal do Rio Grande do Sul;Universidade Católica de Pelotas, Passo Fundo;Universidade Federal de Pelotas

关键词: phenology;    Echinodorus;    chromatography;    variability;    cropping;   

DOI  :  10.1590/S0103-84782001000200004

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

The aim of this research work was to describe the genetic and chemical variability of the medicinal specie "chapéu de couro" (Echinodorus grandiflorus and other species), which is found in Rio Grande do Sul State, Brazil. The plants had been collected at sixteen different sites and planted again in an experimental area at the Federal University of Pelotas (UFPel), in the town of Pelotas-RS. The plants have grown in waterlands, by keeping them underwater during the winter and adding water when the soil was dry. The plants have been fed up with lime, ash of rice waste and vermcomposite. The leaves and the seeds have been collected during spring and summer. The phenology of the different material has been observed to proceed the botanical and physiological description of ecotypes, through field parameters and in the experimental area. The chemical composition of the major chemical substances in the leaves of both native and non native plants was also analyzed. The evaluation led to conclude that: 1- the vailing specie in Rio Grande do Sul State is Echinodorus grandiflorus; 2 – the ecotypes from Cruz Alta and São Gabriel are prefered for cropping due to their early and dry matter production; 3 – the ecotypes from Arroio Grande and Jaguarão are prefered for cropping due to your rich chemical composition.

【 授权许可】

CC BY-NC