Populational Diversity on Leaf Morphology of Maté (Ilex paraguariensis A. St.-Hil., Aquifoliaceae)

Brazilian Archives of Biology and Technology

Geraldo Ceni Coelho²  Jorge Ernesto De Araujo Mariath¹  Eloir Paulo Schenkel¹ 

[1] ,Universidade de Ijuí Departamento de Biologia e Química Ijuí RS ,Brazil

关键词: Ilex paraguariensis;    Aquifoliaceae;    plant morphology;    leaf morphology;    population variability;    rectangular area index;   

DOI  :  10.1590/S1516-89132002000100008

来源: SciELO

【 摘 要 】

Maté (Ilex paraguariensis A. St.-Hil.) is a native plant from southern Brazil and a raw material for beverages. To research on population variability of the species, we compared leaf morphology of three populations from Mato Grosso do Sul (MS), Paraná (PR) and Santa Catarina (SC) States. Lamina measurements included area (A), perimeter (P), length (l), maximum width (w), distance between maximum width and lamina base (dw), base angle (BÂ), biomass (m), and the indexes: relative distance of maximum width (dw/l), ratio length/width (l/w), relative perimeter (RP= P / (l + w), rectangular area index (RAI = A / (l x w)) and leaf mass/area (m/A). We verified differences among populations on A (MSSC) and m/A (MS>PR, MS=SC, PR=SC). The lowest RAI of SC could be explained, at least partially, by a positive correlation between RAI and BÂ (r= 0.6043, p<0.01).

【 授权许可】

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