Effect of spraying roselle extract (Hibiscus subdriffo L.)‎ and vitamin on growth parameters of carnations (Dianthus caryophllus L.)‎

الملخص EN

An experiment was conducted at the nursery of Agriculture Faculty/ University of Kufa during the growing season 2013 – 2014, to study the effect of spraying with Roselle extract and vitamin C on growth parameters of Carnation plant .

Results showed that spraying Roselle extract concentration at 10g.L-1 and vitamin C concentration at 30mg.

L-1 significantly increased the growth parameters (number of leaves to 75.87 leave.plant-1 and branches 9.87 branch.plant-1, total content of chlorophyll to 74.67 mg.100g-1 fresh weight and total soluble carbohydrates to 5.23 mg.g-1 dray weight) flowering parameters ( number of flowers to 12.67 flower.plant-1 , petals to 30.35 petals.

Flower-1, flower diameter of flower to 4.03cm, floret length stalk to 59.16cm, floret diameter stalk to 0.41mm and day to flowering to 120.22 day), compared with control which gave the least values (44.23 leave.plant-1, 3.00 branch.plant-1, 62.57 mg.100g-1 fresh weight, 3.23mg.g-1 dry weight, 4.33 flower.

Plant-1, 16.53 petals.

Flower-1 , 1.73cm, 35.20cm, 0.13mm, 0.16g and the longest day to flowering 147.69 day).