Seed :: Pulses :: Lab Lab
QUALITY SEED PRODUCTION IN LAB LAB
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 seed production leave a distance of 5 m all around the field from the same and other varieties of the crop.

Land selection

Vegetative Stage
Flowering
Pod Formation

Pre-harvest sanitation spray

Spray malathion 0.07% before harvesting the pods for seed crop.

Harvest

Harvest the pods as they turned straw yellow in color

Discard the terminal pods for seed as they invariably contain immature and diseased seeds

The seed moisture content at the stage will be about 15% and the green colour of the seed coat will turn to chocolate brown colour

Dry the pods to 15-18% moisture content

Drying

Dry the seeds to 8 -10% moisture content.


Seed grading

Grade the seed using 18/64” (aperture width 7.28 mm) round perforated metal sieve.

Remove the broken and immature seeds

Dry the seed dried to 7 to 8 per cent moisture content

Matured seeds

Seed treatment

Slurry treat the seeds 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 8-9 %.

Store the seeds in polylined gunny bag for medium term storage (12- 15 months) with seed moisture content of 8 – 9 %

Store the seeds in 700 gauge polythene bag for long term storage (more than15 months) with seed moisture content of less than 8%.

Source
The Professor and Head,
Department of Seed Science & Technology,
TNAU, Coimbatore-641003.
Phone:0422-6611363
Email: seed@tnau.ac.in
Updated On: March, 2016
 
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