Comparison of yield of 7 varieties of dry wheat in Sirvan city

In this study, a comparison plan using seven dryland wheat cultivars adapted to the climate of this region including Aseman, Savarez, Zahab, Zagros, Chamran, Koohdasht, and Sirvan in the form of a randomized complete block design (RCBD) with three replications was conducted during the crop year 2019 - 20 to evaluate the yield of wheat cultivars and select a high yielding and suitable cultivar in the central region of Sirvan, Ilam. The highest grain yield belonged to the Savarez wheat cultivar with an average grain yield of 4590 kg/ha and the Chamran cultivar with a 3476 kg/ha yield had the lowest grain yield. Among the compared cultivars, Savarez and Zahab cultivars have a higher Thousand Kernel Weight (TKW) than other cultivars in the climatic conditions of this region. But in the Zahab cultivar, the final yield decreased due to the low number of spikes per square meter. The results also showed that the Savarez cultivar had a higher biological yield and harvest index in addition to grain yield. The results indicated that the number of grains per spike, TKW, biological yield, and harvest index was the most effective variables on grain yield and one of the most important agronomic traits for selecting wheat cultivars with high grain yield. Finally, considering the results, Savarez was found suitable among the studied cultivars due to its higher production capacity in the central region of Sirvan, and its cultivation in similar climatic regions is recommended.