Allelopathy of Joanesia princeps Vell. and Casearia sylvestris Sw. on the cultivated species

Revista Brasileira de Farmacognosia

Faculdade de Minas, Muriaé, Brasil¹  Capobiango, Rafael Aguiar¹  Bittencourt, Alexandre Horácio Couto¹  Vestena, Silvane¹ 

关键词: Joanesia princeps;    Euphorbiaceae;    Casearia sylvestris;    Salicaceae;    allelopathy;    germination;    growth.;   

DOI  :  10.1590/S0102-695X2009000600023

来源: Sociedade Brasileira de Farmacognosia

【 摘 要 】

Secondary metabolites produced in some plant species can provoke development changes in other plants or even in other organisms. The objective of this work was to identify the possible allelopathic effects of the aqueous extracts of Joanesia princeps and Casearia sylvestris leaves in the germination and initial growth of Brassica oleracea cv. capitata, Lactuca sativa cv. grand rapids and Lycopersicum esculentum seedlings. Six concentrations of each extract (10, 30, 50, 70, 90 and 100%) were tested besides distilled water control. The aqueous extracts of J. princeps and C. sylvestris significantly reduced the seed germination percentage, initial growth of the aerial section and root system of all cultivated species in which they caused severe seedlings damage. The results indicate existence of allelopathic potential in J. princeps and C. sylvestris.

【 授权许可】

Unknown