Avaliação de diferentes tratamentos de sementes no potencial fisiológico de trigo

Abstract

The wheat (Triticum aestivum L.) is an excellent alternative for crop rotation in southern Brazil, and is mostly intended for daily human food, because it is rich in sources of calories and protein, forming the basis of the diet. This culture presents sensitivity to high precipitation, which implies quality losses after physiological maturity. The objective of the present work was to evaluate the physiological potential of wheat seeds, submitted to different types of treatments used, seeking the reduction of seed-associated pathogens and increments in the germination, shoot length, root length, shoot green mass, shoot dry mass, root green mass and crop root dry mass, where the following treatments were used: Trichoderma harzianum Rifai (2g / kg), Fipronil (2ml / kg), Azospirillum brasilense (4ml / kg), Azospirillum brasilense (4ml / kg) + Fipronil (2ml / kg), Trichoderma harzianum Rifai (2g / kg) + Fipronil (2g / kg) ), Trichoderma harzianum Rifai (2g / kg) + Azospirillum brasilense (4ml / kg) and control (without any treatment). The experiment was developed at the Federal University of Fronteira Sul (UFFS), Erechim-RS campus, next to the Agroecology Laboratory. The experiments consisted of 4 repetitions containing 100 seeds in each repetition, being a total of 7 treatments. Through the analysi of Tukey the results, it can be concluded that the association between Azospirillum brasilense and Fipronil, provided increments in shoot length, shoot green mass, shoot dry mass, root green mass, root dry mass and not differing, statistically significant of the other treatments, good seed germination.