ALTERNATIVE CONTROL OF MICROFLORA ON Pseudobombax marginatum SEEDS WITH ESSENTIAL COPAIBA OIL (Copaifera sp.)

作者：Mondego Janaina Marques^*; Fernandes Rodrigues de Melo Paulo Alexandre; Silva Pinto Kedma Maria; do Nascimento Luciana Cordeiro; Alves Edna Ursulino; Batista Jacinto de Luna

来源：Bioscience Journal, 2014, 30(2): 349-355.

• Imbiratanha
• Microflora
• Physiological quality

This study aimed to evaluate the efficiency of copaiba oil in reducing the fungi incidence on seeds of Pseudobombax marginatum and interference on physiological quality. The experimental design was completely randomized with six treatments consisting of copaiba oil at different levels (0%, 0.5%, 1.0%, 1.5% and 2.0%) behind seeds treated with fungicide Captana. The seeds were immersed in treatments for 5 minutes. The seeds sanity was performed by Blotter test being evaluated pathogens incidence seven days after incubation. Observation of fungal structures was performed by observation in stereoscopic and optical microscopes. The evaluation of physiological seeds quality was performed by sowing boxes type Gerbox (R) containing vermiculite. The variables analyzed were germination (G), first count, seedling dry weight (MSP), root dry weight and, germination speed index (GSI). Copaiba oil at a concentration of 1% was effective against Aspergillus sp. and at concentrations of 1 and 1.5% against Chaetomium sp. and Curvularia sp., seeds of P. marginatum. Os treatment with copaiba oil at levels of 0.5, 1.0, 1.5 and 2.0% did not affect negatively in the physiological quality of seeds.

• 出版日期2014-4