EFFECT OF PACKAGING MATERIALS AND ZEOLITE ON SEED LONGEVITY OF ONION SEEDS (Allium cepa L.)
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Date
2017-08-01
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
A laboratory experiment was conducted to study the effect of packaging materials
and zeolite on seed longevity of onion seeds (Allium cepa L.) at Department of Seed
Science and Technology, UAS, GKVK, Bengaluru during 2016-17. The study comprised
of four packaging materials viz., cloth bag, aluminium foil, vacuum polythene bag and
super grain bag and two types of zeolite viz., zeolite powder and zeolite beads stored for
10 months with FCRD in three replications.
The results revealed that among the packaging materials, the seeds stored in
aluminium foil recorded highest seed quality attributes viz., germination (70.49 %),
seedling length (11.21 cm), seedling dry weight (1.91 mg), seedling vigour index I (792),
speed of germination (0.806), dehydrogenase activity (1.124 A480nm), amylase activity
(72.4 μg/g), moisture content (8.52 %), electrical conductivity (727 μS/ppm) and total
soluble sugars (125.63 μg/ml) at the end of ten months of storage. Among the zeolite
types, seeds dried to 5 per cent moisture content using zeolite beads resulted in higher
seed quality parameters viz., germination (68.97 %), seedling length (10.64 cm), mean
seedling dry weight (1.88 mg), seedling vigour index I (739), speed of germination
(0.806), dehydrogenase activity (1.115 A480nm), amylase activity (74.8 μg/g), moisture
content (8.90 %), electrical conductivity (743 μS/ppm), and total soluble sugars (124.45
μg/ml) was observed at the end of ten months of storage.
The study can be concluded that the onion seeds dried to 5 per cent moisture
content using zeolite beads and stored in aluminium foil could be stored for ten months
satisfactorily.
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