Effect of skipping irrigation and sowing methods on yield and its components of four bread wheat cultivars [electronic resource].

Includes references.

Two field experiments were conducted at Gemmeiza Agric. Res. Stat. during 2011/12 and 2012/13 growing seasons, to study the influence of different irrigation regimes i.e. irrigation at tillering stage (I1), at tillering and heading stage (I2) and at tillering , heading and grain filling stage (I3) with three methods of sowing i.e. broadcasting, drilling and beds sowing on yield and its components of four wheat cultivars namely Gemmeiza-11, Misr-1, Shandaweel-1 and Sids-12.A significant reductions in grain and straw yields in both seasons was obtained as a result to subjecting wheat plants to drought-stress. Results showed that three irrigations increased significantly number of spikes/m2, number of grains/spike, 1000-grain weight, grain weight/spike, biological yield and harvest index except protein content. It could be noticed beds sowing method gave highest yield components. Gemmeiza-11 wheat cultivar surpassed the other tested cultivars concerning with the above mentioned traits, except number of spikes/m2 and straw yield. While, Misr-1 surpassed in no. of spikes in both seasons and harvest index in the second season, however, Shandaweel-1 produced the highest protein content. Keywords: Bread wheat cultivars, number of irrigations, water stress, sowing methods, grain yield and its components.

Summary in Arabic.

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