Effect of superabsorbent and mycorrhiza strains on quantitative yield and remobilization rate of single cross704 hybrid maize under water deficit tension conditions

In order to investigate the effect of superabsorbent and mycorrhiza values on yield and remobilization rate of maize under water shortage tension, the present experiment was conducted in the form of split split plots in a randomized complete blocks design with three replications during the crop years 2016- 2017 and 2017-2018 at the research farm of Ahvaz Islamic Azad University. The main factor included water shortage tension including control (irrigation in all stages), lack of irrigation in 10-leaf stage (vegetative growth), lack of irrigation in pollination stage (flowering) and lack of irrigation in seed stage (milk paste) and superabsorbent polymer sub-plot included control or non-application of superabsorbent, application of 100 kilogram per hectare and application of 200 kilogram per hectare and mycorrhiza sub-sub-plot included control or (non-application) and application of mycorrhiza. The results of combined analysis of variance showed that the effect of water deficit and superabsorbent tension interaction on grain yield, one thousand-grain weight, number of grains per ear, number of grains per row, remobilization rate and remobilization share was significant. The highest grain yield (6674/29 kilogram per hectare) was related to irrigation treatment in all growth stages and application of 200 kilogram per hectare superabsorbent. Although with cessation of irrigation in 10-leaf stages, pollination and seeding reduced grain yield by 11, 14 and 12.5 percent, respectively, but this reduction was not significant in these treatments because the consumption of 200 kilogram per hectare in superabsorbent was able to compensate for the water deficit tension in these treatments. The interaction of water shortage and mycorrhiza tension on grain yield, number of grains per ear and number of grains per row was also significant. In general, due to the long-term stability of superabsorbent in soil, it can be said that the application of 200 kilogram per hectare of superabsorbent and mycorrhiza in irrigation conditions at all stages of growth can increase grain yield, corn yield components and overall production improvement.