Tratamento de sementes de trigo com diferentes tipos e doses de bioestimulantes a base de algas

Abstract

Wheat is one of the main cultivated species in the world, being important for both human and animal nutrition. One of the important phases in wheat cultivation is the initial phase, germination, to obtain a suitable plant stand for crop implementation. Seed treatment can contribute to better germination rates and initial plant development in wheat. One way of treating seeds is through the use of biostimulants; There are several compounds that can have a biostimulant effect on plants, and among these are algae extracts. Therefore, this work aimed to evaluate the effect of treating wheat seeds with different algae-based biostimulants. The experimental design used was completely randomized, in a 2 x 4 factorial scheme (types of biostimulants x doses) with four replications. Two biostimulants were used: Proplex®, which is a product composed of brown algae (Ascophyllum nodosum) and C-Weed Plus® composed of brown and red algae (Ascophyllum nodosum and Solieria chordalis); the doses used were 0, 1, 2 and 4 ml/kg of seed. The evaluations were carried out using the following tests: first germination count, germination and seedling length. The results obtained were subjected to analysis of variance and regression (p<0.05). The treatment of wheat seeds from the Tbio Noble cultivar, from the batch used, with different biostimulants based on algae extract did not affect seed germination. The treatment of wheat seeds, cultivar Tbio Noble, from the batch used, with the biostimulant based on Ascophyllum nosum and Solieria chordalis (C-Weed Plus®) at doses of 2 and 4 mL/kg of seeds obtained better performance for seed length. aerial part, and the dose of 4 mL/kg higher in root length of seedlings