Phenotypic patterns of vegetative-reproductive plasticity in maize inbred lines and their derived hybrids

LUTZ, S.; HISSE, I.; GALIZIA, L.; LOPEZ, C.G.; MADDONNI, G. A. ; D´ANDREA, K.E.

Rosario

Congreso; XXXIV Reunion de la Sociedad Argentina de Fisiología Vegetal; 2023

SAFV

Prolificacy and tillering in maize (Zea mays L.) are important sources of vegetative-reproductive plasticity, particularly in restrictive environments; however, the analysis of their plasticity patterns remains unexplored. We evaluated the phenotypic expression of 25 traits linked to vegetative-reproductive plasticity, and associations among them on a set of inbred lines and their derived hybrids. A field experiment was conducted during 2022-23 growing season at FAUBA, following a complete diallel mating design composed by six inbred lines of INTA Pergamino and their 15 derived single-cross hybrids (reciprocals excluded). For most traits, there were significant (P0.80, P0.80, P0.73, P