Response of Medicinally Active Compounds Quercetin and Hibistin and the Concentration of Nitrogen and Potassium in Sepals Leaves on Roselle Plant

Abstract

A field experiment was conducted at Hussainyah Province of Karbala /Iraq to study the effect of the concentration of medically active Quercetin and Hibistin and the concentration of nitrogen and potassium in sepals leaves on Roselle plant. The experiment included studying two factors. First factor included concentrations nano organic fertilizer(Optimus plus), which are (0, 1, 2 and 3) ml L^-1. the second factor included three spraying dates of the nano organic fertilizer (Optimus Plus), which is (spraying after a month of planting, spraying after two months of planting, and spraying after three months of planting). The experiment was designed as RCBD.

The result showed the following points:

• Spray date fertilizer S3 has significant effect on the concentration of medically active compounds Quercetin and Hibistin and concentration of nitrogen and potassium.
• The effect of a concentration of (2 ml L^-1) was significant in increasing the concentration of medically active compounds Quercetin and Hibistin and (3 ml  L^-1) concentration of nitrogen and potassium  Sepal leaves.