Agro morphological characterization of fifteen (15) new lines of yellow maize obtained after gamma irradiation of seeds of the EV8728 variety in Daloa, Côte d’Ivoire

Maize (Zea mays L.) is one of the cereals with many economic and nutritional interests. However, maize cultivation faces challenges climate change. This phenomenon leads to soils unproductivity crops including maize. Thus, address this problem, fifteen new yellow lines were evaluated in field on basis their agromorphological characteristics (pre-flowering flowering). Descriptive analysis collected data revealed significant diversity among studied lines. based growth parameters, L95A, L95B, L30, L72A L91 showed large larger photosynthetic area compared control line (L1). In contrast, L48 L54 small size shape. Regarding flowering a very late inflorescence (62 days average for both organs) 50 early (L99, L89, L1, L95B L95A). The other intermediate. time appearance 50% pollen silk varied (1 3 days) from lineage another same plant (monoecious plant). panicle dominated by purple green color, respectively. majority had spikes well covered spathes except L46, L99 where spike tip remained open revealing grains. roots are mostly stilt type (adventive) two insertion nodes (underground above ground).