Seed Priming TNAU

Will you give list of Seed Priming Types by TNAU? Tell me about advantages for Seed Priming Types by TNAU also.

[Rajkumar Agarwal]

Here I am providing information about Seed Priming Types by TNAU for your reference:

Seed priming is the process of controlled hydration of seeds to a level that permits pre-germinative metabolic activity to proceed, but prevents actual emergence of the radicle.

Types of priming
Hydro priming (use of water double the volume of seed)
Osmo priming (use of osmotic solution-PEG)
Sand matric priming-(use of moist sand)
Halo priming (use of salt solution-NaCl)

Comparison of control and primed bhendi seeds
Creation of different WHC (Water Holding Capacity)
30% WHC-90ml of water / kg of dry sand
40% WHC-120 ml of water / kg of dry seed
60% WHC-180 ml of water / kg of dry seed
80% WHC-240 ml of water / kg of dry seed
100% WHC-300 ml of water / kg of dry seed

Crop Seed priming techniques
Tomato Hydro priming (48hrs)
Brinjal Sand matric 80% (3 days)
Chillies Sand matric 80% (3 days)
Onion Sand matric 80% (3 days)
Carrot Hydro priming (36hrs)
Beetroot Hydro priming (12hrs)
Bhendi Sand matric60% (3hrs)
Radish Hydro priming (12hrs)
Mustard Hydro priming (12hrs)

Advantages
Enhances the germination percentage
Highly suitable for small seeds
Enhances the yield
Enhances the speed and uniformity of germination
Increases the shelf life of seed
Improves the resistance towards water and temperature stress

For more information, contact to:
Professor and Head,
Department of Seed Science and Technology,
TNAU, Coimbatore-641 003.
Phone No: Phone: 0422-6611363.
E-mail: seedunit@tnau.ac.in