EFFECT OF PLANT GROWTH REGULATORS AND PHYTOEXTRACTS ON GROWTH AND YIELD OF THREE BREAD WHEAT CULTIVARS Triticum aestivum L.

Abstract

ABSTRACT : A field experiment was carried out in a private field in Babylon governorate / Mashrooa-Al-Mussseib region during winter season of 2013-2014, in a sandy , loam soil to find out the effect of some plant growth regulators and phytoextracts on growth and yield on three cultivars of wheat bread. A factorial experiment in Randomized Complete Block Design (R.C.B.D) was followed with three replicates, using plant growth regulators (Salicylic acid and Kinetin) with a concentration of 100 mg.L-1 , and two phytoextracts (Liquorices and Willow bark) with 100% concentration. Distilled water was used as a control in this study. Results showed that treatment with Kinetin (R4) resulted in significant difference in growth characters(number of tillers.m-2, flag leaf area) and yield characters(grains number.spike-1 and total grain yield) when compared with distilled water (R0). Spray stage at the start of tillering (S1) dominated significantly in many of studied characters while no difference was noted among cultivars.