Study on agronomic characteristics and grain yield of wheat genotypes under different tillage methods in Hashtrood region

In this study, in order to show the crop capacity and production potential of wheat cultivars and advanced lines in farmers' fields under different tillage methods, 15 bread wheat genotypes in Joghool village of Hashtrood city during two cropping years 2018-2020 with the cooperation of provincial executives the food security project, Farmer, was evaluated under three scenarios: conventional, low tillage and direct cultivation. The results of analysis of variance of agronomic traits during two crop years (2018-20) showed that there was no significant difference between different tillage scenarios. The differences between the studied genotypes were significant for grain yield, number of fertile spikes per square meter, 1000-seed weight, biological yield and rainfall productivity index. The interaction of different tillage methods with genotype was not significant for the mentioned traits. The mean grain yield of wheat genotypes under conventional, low tillage and direct sowing methods were 1228, 1306 and 1482 kg / ha, respectively. In the conventional method, Baran and Jam cultivars with 1562 and 1404 kg/ha, in low tillage method, Jam cultivar and lines No. 12 and 13 with 1698, 1541 and 1604 kg/ha respectively, and under direct cultivation of Homa, Baran, Jam and line No. 11 with 1742, 1698, 1622 and 1681 kg/ha, they had higher grain yield respectively. In this study, the relationship between plant heights, number of fertile spikes per square meter, 1000-seed weight, rainfall productivity index and biological yield with grain yield was positive and significant.