VASE LIFE STUDIES ON CUT GERBERA (Gerbera jamesonii Hook.) CULTIVARS USING ESSENTIAL OILS
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Date
2013-08-10
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Abstract
A study on vase life studies on cut gerbera (Gerbera jamesonii
Hook.) cultivars using essential oils was carried out by conducting two
experiments at the Department of Horticulture, Gandhi Krishi Vignana
Kendra, Bengaluru during 2012-13. In the first experiment the vase life
of cultivar Shangria, was studied by keeping AgNO3 at 20ppm with
sucrose 4 per cent as standard. Three essential oils viz., patchouli,
rosemary and lemongrass oil of 25 and 50 ppm in order to know the best
amongest them. Eight treatments replicated thrice were taken using
Completely Randomized Design. In the first experiment 50 ppm proved to
be the best amongest the essential oils tried. The second experiment was
on effect of best concentration of essential oils from experiment I on vase
life of gerbera on four different cultivars Esmera, Damallen, Salvador and
Dune. The design was Completely Randomized Design with five
treatments replicated thrice.
The gerbera cut flowers were harvested when outer ray florets were
completely elongated or when the outer two rows of disc florets were
perpendicular to the flower stalk and treated with different essential oils
at 50ppm concentration. Among the cultivars, cultivar Damallen showed
better cumulative uptake of water (43.32g/ cut flower), cumulative water
loss (31.67g/ cut flower), cumulative water uptake: cumulative water loss
(1.36g/ cut flower), fresh weight(33.02g/ cut flower) in treatment
containing rosemary oil at 50ppm and 4 per cent sucrose showed better
vase life of 7.80 days.
The results revealed that the gerbera cut flowers, treated with
50ppm rosemary oil and sucrose at 4 per cent showed good vase life in
all the cultivars studied. Hence rosemary oil being natural, eco-friendly
and cost effective can replace other chemical floral preservatives.
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Keywords
genes, proteins, rna, animal husbandry, genetic techniques, livestock, biological phenomena, lipids, fats, cloning