STUDIES ON INFLUENCE OF PACKING MATERIALS AND SEED TREATMENTS ON STORABILITY OF VEGETABLE SOYBEAN [Glycine max (L.) MERRILL.]
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Date
40865
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Publisher
University of Agricultural Sciences GKVK, Bangalore
Abstract
An investigation was carried out to know the influence of packing
materials and seed treatments on storability of vegetable soybean [Glycine max
(L.) Merrill.]. Seed quality aspects and storage potential of cv. GC-00209-4-1-
1(KARUNE) were studied in comparison with grain type soybean cv. RKS-18.
The seeds of both cultivars having moisture content of around nine per cent
were treated with Thiram (3 g/kg), Trichoderma viridae (7.5 g/kg) and untreated
seeds were served as control. Then the treated seeds were packed in cloth bag,
polypouches and super grain bag and stored for a period of nine months under
ambient conditions. The seed samples were drawn at intervals and evaluated
for various seed quality attributes. The results of the study revealed that at the
end of storage period, higher seed quality parameters viz., germination (86%),
field emergence (78.67%), mean seedling length (28.72cm), seedling vigour
index-I (2470), total dehydrogenase activity (2.695), lower electrical conductivity
(0.6972mS/ppt) and seed infection (<4%) were noticed in grain type soybean
(cv. RKS-18) treated with Thiram (3g/kg) and stored in polypouches compared
to cloth bag with untreated control. However, seeds of vegetable type soybean
(cv.GC-00209-4-1-1) which were treated with Thiram @ 3g/kg and stored in
poly pouches showed comparatively lower seed quality parameters like
germination (81.33%), field emergence (74.00%), mean seedling length
(22.36cm), seedling vigour index-I (1819), total dehydrogenase activity (2.312),
but higher seedling vigour index-II (5645), electrical conductivity (0.599
mS/ppt) and seed infection (10%) compared to grain type (cv. RKS-18) at the
end of nine months of storage. However, seeds of vegetable type packed in cloth
bag were badly damaged by bruchids, within two to three months, irrespective
of treatments. Thus the study suggested that both cultivars packed in
polypouches treated with Thiram treatment @ 3g/kg could be stored up to nine
months without any drastic reduction in quality.