Comportamento espacial dos atributos fisiológicos de sementes de soja de um campo de produção

Abstract

Soybean seeds may exhibit distinct quality levels when produced in different management zones. This study aimed to evaluate the physiological attributes of soybean seeds and identify their variability and spatial distribution using geostatistical tools. Data were collected at the Glória Farm (Uberlândia, MG) and analyzed at the Seed Analysis Laboratory of the Federal University of Uberlândia (Umuarama Campus). Soybean seeds were harvested from 48 georeferenced points to determine their physiological behavior and spatial dependence patterns. The variability of physiological quality attributes from different zones was assessed through germination, accelerated aging, seedling emergence, electrical conductivity, and seedling length tests. Previously analyzed soil attributes, along with initial plant stand and seed yield, enabled the validation of management zones. Physiological seed quality is not uniformly distributed across the production field; therefore, geostatistics is an effective tool for determining the spatial distribution of physiological quality attributes in soybean seed production areas.