1st International Congress on Agricultural Structures and Irrigation, Antalya, Türkiye, 26 - 28 September 2018, ss.215-219
Worldwide, foods produced from wheat constitute the greatest food group consumed by humans. Therefore, wheat production should be increased both to catch up with the current nutritional needs and to meet ever-increasing demands. Irrigation is the most significant input in wheat production. It is quite significant that plant water requirement should be met on time, at proper quantities with quality irrigation water. Current climate change and demands exert serious pressured on water resources. Initially, water resources use should be optimized for sustainability of agricultural production, then low quality waters should also be used after taking relevant remedial measures. Undesired problems may be experienced wen such low quality waters were used in irrigation just based on ion composition and concentrations of these waters. High soluble salt contents of root zone solution negatively influence germination, water and nutrient uptake of plants. Germination is the vital stage in seed-propagated plants. In this study, new and old bread wheat cultivars (Triticum spelta and Triticum aestivum) were sown into petri dishes and germination tests were performed under irrigation waters with different salinity levels (0, 8, 10, 12, 15, 20 ve 30 dS/m) generated with different salt sources. Sodium absorption ratio (SAR) of irrigation waters were all below 3. The greatest germination rates (79%) was obtained from current hexaploid wheat and the lowest values (42%) were obtained from primitive hexaploid wheat. On the other hand, primitive cultivar had greater dry matter yields. In general, germination rates decreased with increasing irrigation water salinity (EC) levels.