| المستخلص : |
A field experiment was conducted at the nursery of Agriculture Faculty/ Kufa University during the growing season 2012 – 2013 to study the effect of spraying liquorice (licorice) roots extract Glyayrrhiza glabra L. and vitamin C on some vegetative and flowering parameters of Stock plant . The experiment was adopted in Randomized Complete Block Design (R.C.B.D) with two factors in three replicates: First was three concentrations of liquorice roots extract i.e. (0, 3 and 6) ml.L-1, second was three concentrations of vitamin C i.e. (0, 75 and 150) mg.L-1 and their interactions. Least significant differences (L.S.D) test was using to compare the means. Results showed that spraying with liquorice extract at a concentration 4 ml.L-1 or vitamin C at a concentration 50 mg.L-1 increased significantly plant height, number of leaves, shoots dry weight, content of total chlorophyll and total soluble carbohydrates in leaves, number of main roots, roots dry weight, number of inflorescence and floret, diameter of floret and inflorescence dry weight, compared to control treatment which gave the least values. Results also showed that: spraying with liquorice roots extract at a concentration 4 ml.L-1 and vitamin C at a concentration 50 mg.L-1 increased significantly plant height, number of leaves, shoots dry weight, total content of chlorophyll, soluble carbohydrates, number of main roots and roots dry weight, number of inflorescence per plant and floret per inflorescence to 8.67 and 48.67, inflorescence stalk diameter to 4.07cm and inflorescence dry weight to 2.92gm, compared to control treatment which gave the least values: 3.00 inflorescence. Plant-1, 27.00 floret. Inflorescence-1, 1.20cm and 0.22gm respectively. |