THE BEHAVIOR OF SOME PERSPECTIVE CORN HYBRIDS CREATED AT ARDS LOVRIN UNDER THE CURRENT CLIMATE CHANGE CONDITIONS

Abstract

During the current climatic conditions, the breeders of crop species, Zea mays L. (maize) seek to provide growers with solutions to combat the effects of drought and scorching heat, as well as reducing losses caused by these phenomena, by creating hybrids of corn, with different periods of vegetation, belonging to different FAO groups, from early and semi-early hybrids to late hybrids, fulfilling in this way the requirement of farmers to obtain stable yields, regardless of the growing area and climatic conditions. Therefore, taking into account these requirements, the breeders of maize laboratory from the Lovrin Research and Development Station, obtain every year some new perspective hybrids, hybrids that meet the market requirements and that face the competition on the market. In 2019, a year quite favorable for corn cultivation, 160 simple corn hybrids were sown, created at ARDS Lovrin, in 8 comparative cultures, each culture having 3 hybrids as witnesses. From those 8 comparative cultures, we studied, in this paper, only 3 cultures that we considered representative, the average production of crops being between 9,686 kg stas / hectare and 10,334 kg stas / hectare. The hybrids Lv 57 and Lv 59 were noted with productions of 14,695 kg /ha, respectively 14,298 kg /ha, hybrids that exceeded the average production of the culture, their production being statistically assured as very significant.