A multivariate approach to the physical and physiological quality of hybrid corn seeds affected by Molicutes and MRFV

This study aimed to assess physical and physiological seed quality attributes and seed vigor in different hybrids presenting different corn stunt complex severity levels, molicutes and Maize rayado fino virus (MRFV). This was performed through a multivariate approach, in order to select high vigor seeds and more disease-tolerant hybrids, as well as identify the main vigor variables. Seeds from three corn hybrids (H1, H2 and H3) obtained from seed production fields were assessed, each presenting three levels of corn stunt complex ear severity (healthy, medium and high). Seed quality was assessed using physical and physiological quality attributes. The data were subjected to an analysis of variance and, when significant, assessed through factor analysis, Scott–Knott test (p