Efeitos de biofertilizantes na germinação de sementes no crescimento inicial de lavada (Lavandula angustifolia)

Abstract

The production of lavender (Lavandula ssp.) in Brazil has the potential of expansion, and its use is specially directed to the extraction of essential oil, being used in the cosmetics, food, pharmaceutical and perfumery industries, among others. In this sense, the species poses itself as an alternative to compose the diversification of the productive matrix in family units. Therefore, among the potential options of application in the productive systems of lavender, in order to improve production, is the use of biofertilizers, which are easy to access, low cost of obtaining and with the possibility of production on the property, with known application for some plant species. Therefore, the objective of this research was to evaluate the germination of seeds and the initial development of Lavanda (Lavandula angustifolia) with the application of different biofertilizers, sterilized and non-sterilized, in different concentrations. For this, an experiment was conducted in two stages, one in the laboratory and the other in individual seedlings, in both stages were conducted in a factorial scheme 2 x 2 x 2 + 1, fully casualized, with 4 repetitions.The treatments were composed by two biofertilizers, the Supermagro® and the efficient microorganism, by two forms of sterile and non-sterilized application, in two concentrations 2 and 5%, plus the control with water, totaling 9 treatments. The seeds used were purchased in the trade, being of the species Lavandula angustifolia. The results showed that, in general, in laboratory variables, the best biofertilizers was Supermagro, at a concentration of 5%, both in sterile and non-sterilized form. On the other hand, the results in the variables of the individual seedlings in general, the best biofertilizers was the supermagro, in the sterile form and in the concentration of 5%.