Ação de promotor do crescimento na germinação e desenvolvimento inicial de plantas de lactuca sativa L. em diferentes temperaturas.

Abstract

The objective of this work was to evaluate, in laboratory conditions, the action of the growth promoter Viusid®Agro on the germination and initial development of plants of Lactuca sativa L. at different temperatures. The seeds were immersed in solutions with concentrations of Viusid®Agro (0.0, 0.2, 0.4, 0.6, 0.8 ml ) for 12 hours. After the immersion and drying period, they were seeded in Petri dishes and placed in a germination chamber, submitted to temperatures of 20 and 30 ° C, For seven days. It was analyzed the IVG, simultaneously with the germination test and morphological characteristics of the plant: shoot height (cm), root length (cm), fresh and dry mass of plant / plate (mg). Based on the experimental data of the present research, it was observed that the application of Viusid®Agro did not influence the germination, however, it acts on the initial development of the plant and has a positive action even at high temperature. He best development indexes were contacted at the concentration of 0.4 ml .