Avaliação da qualidade fisiológica de sementes de trigo produzidas em solo com diferentes níveis de fósforo

Abstract

According to seed sector becomes more professional, the seeds production areas turn more technical and besides the high percentage of viable seeds, the market demands physiologic characteristics associated with vigor as quality and performance. Also have increased the monitoring of each phase in productive process, the appearance of a new technology, the precision agriculture, the rational use of that technology allows, among other activities, the distribution of fertilizers in agreement with the need of the each area fraction to be cultivated, allowing to determine when and where, the insume should be applied, based on the generation and analysis of productivity maps and soil attributes. Like this, the present work had as objective studies the physiologic and chemical alterations in wheat seeds, cultivated under no-till system, using precision agriculture technique. Areas with different phosphorus level and differentiated manuring generated seeds to development of this study, they went evaluate in the physiologic potential, chemical and mineral composition through the tests of first counting of the germination, germination, accelerated aging, tength of root and aerial part, phytomass, weight of thousand, electric conductivity, field emergency, soluble starch, protein, soluble sugar, macro and micronutrients, respectively, being in the subsequent generation evaluated only the physiologic quality. The obtained results allow conclude that the phosphorus application improves the physiologic quality of the wheat seed; however it doesn't influence the chemical composition.