Effect of Spraying with Different Levels of Salicylic and Humic Acid in Some Growth Characteristics and Yield of Wheat Triticum Aestivum

Abstract

Fieldexperiment carried out in Falluja /Anbar/ Iraq, during the winter season2012-2013 to determine the effect of spraying in three concentrations ofsalicylic acid (37.5, 75, 112.5) mg/L and humic acid with concentrates (0, 600,800 and 1000) gr/d in growth characteristics and yield of wheat (eebaa99) type.In this study split plots system with Randomized complete Block, Design (RCBD)has been used in the experiment, the humic acid concentrations placed in themain plots and the salicylic concentrations in the sub-plots. Highconcentration of humic and salicylic acid showed the most significant responseto most studied traits, salicylic with a concentration of 112.5 was the best inthe average area of the flag leaf, number of tillers, number of spikes 448.9Spikes/m2, the number of grains in spike 43.26 grains/plant, yield of grains5.13 tons/H and the highest protein contents 8.23%. Wherever, 1000 gr/ D ofhumic acid was the earliest one to reach 100% flowering, the average area ofthe flag leaf, number of tillers and number of spikes 473 Spikes/m2 but did notdiffer significantly with level 800 gr/ D in the number of grains in spike, theyield of grains and protein contents. The Interference between concentrationsof Salicylic and humic acid significantly affected most of the properties ofthe yield and characteristic growth.