Doses de enraizante na germinação de sementes e desenvolvimento inicial de plântulas de gergelim (Sesamum Indicum).

Abstract

Sesame (Sesamum indicum L.), belonging to the Pedaliaceae family, is an oilseed plant of African origin, considered one of the oldest oilseeds that humanity has ever used. Its cultivation needs to be well prepared aiming at the productivity of the crop in the field, the application of rooters with macro and micronutrients such as zinc, in several crops has proven to be a good technology option to achieve increased productivity. From this, the present study aims to evaluate the germination of sesame seed (Sesamum indicum L.) and its root development, with application of rooting agent having in its composition micronutrients such as zinc and phosphorus, in different dosages. The project was carried out in the laboratory of the Federal Rural University of the Amazon, Campus Tomé-Açu/PA and in a greenhouse belonging to it, in a period of 22 days, between the months of February and March 2023. The experimental design was in completely randomized blocks, using the k3 variety of sesame, with five root treatments (0 ml, 2 ml, 4 ml, 6 ml, 8 ml) and three growth periods (7, 14, 21 days after sowing), and 12 replications. The collected data were submitted to analysis of variance, and by Tukey's test, both at the level of 5% significance, in order to compare the results between treatments, using the SISVAR® 5.7 software. Based on the data obtained, it was found that the seeds without dosage (T0) reached a higher percentage of germination with 63.33% and with an average of 4 cm of root length, being this the most efficient treatment for the seeds of the cultivar k3.