In the context of accelerated climate change, characterized by rising average temperatures and decreasing water resources, modern agriculture is compelled to adopt sustainable and adaptive technologies. This study evaluates the agronomic performance of three winter wheat varieties (Avenue, Glosa, and Artico) cultivated under a no-till system, in rainfed conditions, in the semi-arid area of Mereni, Constanța County, during the 2021–2024 period.The research integrated relevant climatic data (precipitation, average temperature, number of hot days) with agronomic parameters (plant density at emergence and harvest, number of grains per spike, thousand-kernel weight – TKW, and theoretical yield). The results highlighted the superior performance of the Avenue variety, with consistent yields and high adaptability to abiotic stress. Glosa showed good stability under moderate conditions, while Artico, although promoted as drought-tolerant, exhibited a significant decline in performance during dry years.Regression and correlation analyses revealed a negative relationship between temperature and TKW, as well as between the number of hot days and yield per hectare. The no-till technology played an important compensatory role, supporting plant density and yield maintenance under unfavorable climatic conditions. The study confirms the importance of selecting adapted varieties and implementing conservation technologies to sustainably maintain production in areas at high risk of aridification.

wheat, minimum tillage, climate change, drought, technology

agronomy

Presentation: poster