Prolificacy and grain yield components in modern Argentinian maize hybrids

analisi statistica analyse statistique argentina argentine cantidad de semilla requerida criteri di selezione crop yield fitomejoramiento hybride hybrids ibridi infiorescenze inflorescence inflorescences inflorescencias miglioramento genetico vegetale peso plant breeding poids rendement des cultures rendimento rendimiento de cultivos selection criteria sowing rates statistical analysis weight zea mays