GERMINAÇÃO E VIGOR DE SEMENTES DE GERGELIM TRATADAS COM ESTIMULANTE DE CRESCIMENTO

Abstract

Sesame (Sesamum indicum l.) is a crop that adapts well to different climates and can be managed very well in hot and water-deficit conditions, as well as being used in various areas such as human food, the pharmaceutical and medicinal industries. In this work, germination and vigor tests were carried out on sesame seeds with the application of the growth stimulant "Agressive Desperta", tested in 6 treatments with 4 repetitions (0; 1, 2, 3, 4 and 5 ml kg-1 of seeds), with solutions adjusted and diluted in 10 ml and distilled water for 10 g of seeds. The germination percentage, germination speed index (GVI), seedling length and seedling dry mass tests were carried out. Treating the seeds with the growth stimulant did not provide any statistical difference in terms of the percentage of the first germination count, but there was an increase in the percentage as the doses tested increased (Figure 1B). Treatments with doses above 2 ml kg-1 reduced the number of abnormal seedlings. The treatment with a dosage of 3 ml kg-1 had the potential to benefit and generate a better response in terms of seedling length, aerial part and total seedling length. Seeds treated with 4 ml kg-1 of seeds had a higher germination percentage when compared to the other doses. The 5 ml kg-1 dosage resulted in phytotoxicity for the seeds, but the variable dry matter of the aerial part increased. The results obtained in this study show that the treatment with 3ml kg1 of seeds was satisfactory in response to the data analysis after treatment with the growth stimulant Agressive Desperta. Using a dosage of 3 ml kg-1 of seeds is the most recommended because the variables germination, number of abnormal seedlings and germination speed index were more significant than the dosages evaluated (0.0 - 5.0 ml kg-1 of seeds) in a controlled environment. The data obtained was significantly acceptable, as it was possible to quantify the best dose for treating sesame seeds. Taking the studies to the field and cross-checking the data will give greater certainty to the data obtained in this research.