A plant’s response to osmotic stress is a complex phenomenon that causes many abnormal symptoms due to limitations in growth and development or even the loss of yield. The present study was designed to investigate the morpho-physiological responses of different sugar beet cultivars (‘Shokofa’, ‘Sina’, ‘Paya’, ‘Turbata’, and ‘Aria’) to priming (non-priming, osmopriming, and hydro-priming) and salinity of irrigation water (>2, 8, and 16 dS/m). The experiment was conducted as a factorial split plot experimental based on a randomized complete blocks design (RCBD) implemented in three replications in a research farm in Saveh city, Iran, during 2019-2020. Results showed that non-priming of ‘Shokofa’ genotype, hydro-priming of ‘Aria’ genotype, and osmo-priming of ‘Paya’ genotype under non-salinity conditions had the highest total chlorophyll content (31.04, 32.80, and 28.50 µg/g FW, respectively). The highest proline content was related to the hydro-and osmo-priming of seeds under high salinity stress (1.91 and 1.23 μmol/g FW, respectively). Hydro-priming of ‘Shokofa’ seed showed the highest LAI under the high salt stress level. The highest root yield (62.9 tons/ha) was observed in the hydro-priming of ‘Aria’ genotype under without salt stress conditions. In addition, all sugar beet cultivars under non-stress and hydro-priming conditions had the highest root yield. Among the cultivars, ‘Sina’, ‘Torbata’, and ‘Aria’ and hydro-priming technique are recommended for planting in areas under soil or irrigation water salinity stress Manuscript profile

European hazelnut (Corylus avellana L.) is one of the most widely used nuts because of its nutritional and health-beneficial properties. This study was carried out to determine some biochemical kernel constituents including fatty acid composition and protein content in 25 different hazelnut cultivars collected from three regions in the north of Iran. The total saturated fatty acid content and the total unsaturated fatty acid content were significantly different. Also, the amounts of both main saturated and unsaturated fatty acids were found to be significantly different. Oleic and linoleic acids were the main unsaturated fatty acids existing in the studied cultivars. The highest (78.02%) and the lowest (72.89%) content of oleic acid were determined in the cultivars ‘Vartashenʼ and ‘Atrakʼ, respectively. Also ‘Ganjehʼ contained the highest (10.91 %) and ‘Bootkhanekiʼ contained the lowest (9.48%) levels of linoleic acid, respectively. The major saturated fatty acids were palmitic acid (ranging from 5.73% in ‘Alipourʼ to 6.87 % in ‘Atababaʼ) and stearic acid (ranging from 2.14% in ‘Atrakʼ to 3.62 % in ‘Nemsaʼ). In addition, protein content ranged from 14.75% (Kolaparak) to 17.74% (Gerde-Eshkevar). The results obtained from the studied cultivars can be important for establishing new orchards and also in breeding programs. Manuscript profile