Physiological performance of wheat seeds coated with micronutrients

• Main Authors: Lizandro Ciciliano Tavares, Cassyo de Araújo Rufino, André Pich Brunes, Felipe Freire Friedrich, Antonio Carlos Souza Albuquerque Barros, Francisco Amaral Villela
• Format: Article
• Language: English
• Published: Associação Brasileira de Tecnologia de Sementes
• Series: Journal of Seed Science
• Subjects: triticum aestivum l.; crescimento inicial; qualidade fisiológica; rendimento de sementes
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000100004&lng=en&tlng=en

The objective of this study was to evaluate the physiological performance of wheat seeds coated with micronutrients. The treatments were combinations of two products based on micronutrients, product "A": 780.0 g.L-1 of zinc and product "B": 182.4, 7.6 and 45.6 g.L-1 of zinc, boron and molybdenum, respectively, with five dosages of the products: 0, 1, 2, 3 and 4 mL. kg-1 seed, totaling 10 treatments with four replications. Physiological quality of the treated seed was evaluated from germination and vigor tests and the early plant growth from determinations of shoot dry weight, plant height and leaf area at 10, 20 and 30 days after emergence (DAE), as well as the rate of crop growth, relative and net assimilation. Seed yield and physiological quality were determined after harvest. It was concluded that coating wheat seeds with the product "A" , based on zinc and "B", consisting of zinc, boron and molybdenum, respectively, up to a dosage of 4 mL.kg-1 seed, did not adversely affect the physiological quality of the treated seeds or those produced. Both products tested resulted in increases in leaf area, plant height and shoot dry weight up to 30 DAE, as well as a higher seed yield.