QUALITY SEED PRODUCTION IN SOYABEAN
Land requirement
Land should be free of volunteer plants.
The previous crop should not be the same variety or other varieties of the same crop
It can be the same variety if it is certified as per the procedures of certification agency
Isolation
For certified / quality seed production leave a distance of 3 m all around the field from the same and other varieties of the crop. |
Land Selection
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Erect |
Flowering |
Pod Formation |
Pre-sowing seed treatment
Pellet the seeds with ZnSO4 @ 0.25 to 0.3 g kg-1 of seed using 2% CMC or 10% maida as adhesive @ 250 ml kg-1 of seed and arappu leaf powder / vermicompost as filler @ 300g kg-1 for better field establishment.
Harvest
Seeds attained physiological maturity 27 –30 days after flowering
Harvest the pods as they turn yellow in colour
Threshing
Thresh the pods either manually or mechanically using pliable bamboo sticks
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Harvesting stage |
Seed grading
Grade the seeds using 14/64”(5.6mm) to 12/64”(4.8mm) round perforated metal sieve based on varieties.
Drying
Dry the seeds to 7- 8% moisture content
Seed treatment
Slurry treat with carbendazim @ 2g kg-1 of seed along with carbaryl @ 200 mg kg-1 of seed. (or)
Slurry treat seeds with halogen mixture (CaOCl2 + CaCO3 + arappu (Albizzia amara) leaf powder mixed in the ratio of 5:4:1) @ 3g kg-1 as eco – friendly treatment |
Storage
Store the seeds in gunny or cloth bags for short term storage (8-9 months) with seed moisture content of 10-12%
Store the seeds in polylined gunny bag for medium term storage (12- 15 months) with seed moisture content of 8 – 10%
Store the seeds in 700 gauge polythene bag for long term storage (more than15 months) with seed moisture content of less than 7% |
Source
The Professor and Head,
Department of Seed Science & Technology,
TNAU, Coimbatore-641003.
Phone:0422-6611363
Email: seed@tnau.ac.in
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