The Effect of Foliar Thiamine and Roselle Extract on NPK Content and Some Chemical Parameters inof Mathiola Plant
Abstract The experiment was conducted in the Directorate of Agriculture in Najaf during the agricultural season 2020-2021 to know the effect of Foliar application of thiamine and Roselle extract on the chemical parameters of the Mathiola plant(Matthiola incana L).The experiment included two factors, the first is thiamine at four concentrations (90,60,30,0) mg.L-1. The second is Roselle extract at four concentrations (0,2,4,6) g.L-1, a factorial experiment was conducted consisting of three replicates, the experiment was conducted based on the Randomized Complete Block Design (R.C.B.D) 4×4×3=48, The results can be summarized that thiamine at a concentration of 90 mg.L-1 with Roselle extract at a concentration of 6.4 g.L-1 when sprayed on the plant led to a significant increase in the study parameters as the leaves content of total chlorophyll and nitrogen phosphorous potassium, boron and the total soluble carbohydrate content of the leaves and the anthocyanin content of the flowers were increased reached to 57.27 mg.100 g-1 and 2.45% and 0.29% and 2.96% and 13.72 mg.kg-1 and 18.10 mg.g-1 respectively.