Abstract
The present study was conducted with the aim of evaluating the effect of rizhospheric bacteria and biofertilizers on rooting leaf cuttings of African Violet (Saintpaulia ionantha Wendl). Rhizobacteria were used isolated from roots of mandarin lime, employed for the preparation of inoculant in liquid culture medium (Trypticase Soy Agar). The leaf cuttings were placed in contact with the inoculants for 15 minutes, and then with the aid of sterile clamp, these were transferred to the substrate-filled trays. The biofertilizer Vector 1000 and fertilizer CoMo were used on 1mL L -1 concentration of water, and the cuttings were treated for 5 and 10 minutes respectively. The delineation was completely randomized with 17 treatments and 12 repetitions. The experiment was conducted in growth chamber, with photoperiod of 16 hours light and constant temperature of 28 o C. It was evaluated the fresh and dry mass of the roots.The data obtained were tabulated and subjected to parametric variance analysis, complemented with the Tukey’s multiple comparison test. It was found that the rizhobacteria isolated from mandarin lime induced the root development and the formation of buds in the African Violet cuttings. The cuttings treated with Vector 1000 for 5 minutes did not show good root or buds development, while 10 minutes of treatment was positive for these variables; the fertilizer CoMo induced the formation of roots.
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