[Progress in breeding of protein high quality maize (opaque-2) [Zea mays L.]]

agronomic characters calidad caratteri agronomici color colore colour contenido de humedad contenido proteico contenuto proteico couleur crop losses crop yield ensayos de variedades field experimentation fitomejoramiento gene genes geni genotipi genotipos genotypes grain granella granos hybridation hybride hybridization hybrids ibridazione ibridi mais maize miglioramento genetico vegetale moisture content perdite colturali plant breeding protein content prove varietali quality rendement des cultures rendimiento de cultivos selection selezione teneur en eau variety trials zea mays