Essential oil yield in Salvia officinallis L. under the action of plant growth regulators

Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:21:54Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:29:37Z : No. of bitstreams: 1 2-s2.0-34347391114.pdf: 119250 bytes, checksum: 32bb29bf2a5a4f5b96801bee2943940f (MD5) Made available in DSpace on 2014-05-27T11:21:54Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-07-01 This study aimed to evaluate the effect of different plant growth regulators on essential oil yield in Salvia officinalis L. plants. The experiment was held in a greenhouse and the experimental design was completely randomized, with 5 treatments and three replications. The Treatments consisted in the application of gibberellic acid (GA3), benzylaminopurine (BAP), 2-chloroethyl phosphonic acid (ethephon), and Stimulate at 2%, compared with control plants (water). Applications of plant growth regulators were performed in three consecutive periods, in turn, 15, 25 and 35 days after transplanting of seeding germinating in the light at 25°C. The dry mass yield of the aerial part and the oil essential content were determined 131 days after the transplant. The aerial part of the plants was dried in an oven at 35°C; after dry mass determination, the oil was extracted by hydrodistillation and its volume was determined. Plants treated with GA 3 and Stimulate showed increase in essential oil content, while plants treated with BAP and ethephon showed decrease in essential oil volume when compared with the control plants. Departamento de Botânica Instituto de Biociências Universidade Estadual Paulista, Cx. Postal 510, 18618-000, Botucatu, São Paulo Departamento de Botânica Instituto de Biociências Universidade Estadual Paulista, Cx. Postal 510, 18618-000, Botucatu, São Paulo