| Abstrakt: |
Background & Objective: This study was conducted to evaluate the effect of biofertilizer application on the performance of barley common cultivars and new line in the Tabriz plain. Materials & Methods: The factorial experiment was conducted based on a randomized complete block design in the lands of Mamaghan city, East Azerbaijan Province. Experimental factors include: biofertilizer treatment at two levels, application of Barvar 2 with an approximate population of 1*108 bacteria cells per gram of inoculum suspension and non-application. The investigated barley cultivars were SE-96-4- a new promising line, which was selected from the evaluation test of the performance of advanced lines in cold regions, Jolghe and Qara-arpa cultivars. Results: Based on the results of analysis of variance, the interaction of cultivar and biofertilizer had a significant effect on barley grain yield. The highest seed yield was obtained with 5.9 tons per hectare in the new promising line and with Barvar 2 biofertilizer application. In Qararpa variety, the use of Barvar 2 did not have a significant effect on barley grain yield, but in the new promising line and Jolghe cultivar, with the use of Barvar 2 bifertilizer, an increase in grain yield was observed by 36.6% and 55.2%, respectively. Therefore, Barvar 2 fertilizer caused a significant increase in barley grain yield, especially the new promising line. The yield components showed a better response to the application of Barvar 2 biofertilizer. This new line had more leaf area index (6.67), chlorophyll content index (51.17) and number of days to maturity (278) compared to the other two cultivars, so it had more photosynthetic capacity to produce yield. Conclusion: Using Barvar 2 biofertilizer at the rate of 0.5 (lit. ha-1 ) in the new promised and improved lines increased the yield in the semi- arid and low potential Tabriz plain, but it did not show an effect on the yield of the native cultivar, so the use of Barvar 2 biofertilizer for the new promising line can increase the yield of barley seeds. [ABSTRACT FROM AUTHOR] |
