Effect of Different Levels of Chelated Iron on Growth, Flowering, Quantity and Quality of Aromatic Oil of Gardenia Plant Gardenia jasminoides Ellis

Haifaa Mohamed Abo- Komra, Jamal Ahmed Abbass

Abstract


This experiment was conducted at a private nursery in Babylon governorate during the growth season of 2007/ 2008 to study the effect of five levels of 6% Fe-EDDHA: 0, 40, 60, 80 and 100 mg.pot-1 on vegetative growth, flowering characteristics, quantity and quality of aromatic essential oil in gardenia plant (Gardenia jasminoides Ellis). The experiment was conducted in randomized complete block design (R.C.B.D.) with three replicates. Least significant differences test (L.S.D.) at a probability level of 5% was used to compare means.
Results revealed that the level 100 mg.pot-1 sequestrene resulted in a significant improvement of vegetative growth characteristics; i.e. (plant height, number of branches, number of leaves, leaf area, shoot dry weight and leaf contents of total chlorophyll), besides a significant increase in leaf carbohydrate and iron content, number of flowers and petals and the quantity of aromatic essential oil and its quality characteristics; i.e. (density and refractive index). The largest amount of aromatic oil was 0.45 mg.g-1 at the level 100 mg.pot1- of chelated iron as compared with the plant without chelated iron which gave the least amount of 0.28 mg.g-1.

Keywords


Fertilization, Chelated iron, Aromatic oil, Gardenia jasminoides Ellis

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