Yield and Water Productivity of Bread Wheat Cultivars under Diversified Irrigation Regimes

Abstract

The growth and productivity of bread wheat cultivars is affected by deficit water irrigation. Therefore, field experiment was conducted at Agricultural Experiment and Research Station, Faculty of Agriculture, Shalakan, Kalubia, Egypt, during the winter season of 2015/16-2016/17 to study the effect of irrigation regime (I1: full irrigation 5 irrigations, I2: skipping 2nd irrigation, I3: skipping 3rd irrigation) on yield and water productivity of five wheat cultivars (Sids 13, Gemmeiza 12, Sakha 94 and Misr 2). A spilt-plot in a randomized complete block design with three replications was used. Plant growth parameters and yield parameters in addition to water productivity (WP) were determined. The results showed that skipping irrigation significantly decreased plant growth and yield parameters in both seasons. Wheat plants irrigated five times possessed maximum biomass weight, spikes plant−1, spike length, grain weight spike−1, and grain yield aradab fed−1 as compared to skip 2nd irrigation and skip 3rd irrigation. Among wheat cultivars, Masr 2 cultivar gave the highest value from plant growth and yield parameters. Moreover, the lowest value was produced by Sakha 94 cultivar. However, it is concluded that interaction of full irrigations and Masr 2 cultivar proved optimum for obtaining maximum grain yield and skipping 2nd irrigation treatment proved maximum water productivity with wheat cultivars.