Investigating Seed Germination and Storage Behaviour of Premna latifolia Roxb

Shweta Rawat, Manisha Thapliyal

Abstract


Objective: An investigation was carried out to discover seed germination behaviour of Premna latifolia by giving dormancy- breaking seed pre-treatments and to determine seed storage behaviour of P. latifolia. Methods: Different pre-treatments (cold water soaking 48 hrs, hot water soaking 24 hrs, GA3 500 ppm and 800 ppm for 48, 72 hrs) and a control (without any treatment) were given to the seeds. Seed storage was done at two moisture content levels (8% and 5.4%), four temperature levels (ambient room temp., 15℃, 5℃ and -5℃) for 24 months. Viability was determined for stored seeds by germination tests at 3 months interval (0 days, 3, 6, 9, 12, 15, 18, 21 and 24 months). Results: The result indicated that among all treatments, higher germination (90%) and vigour (507.60) was recorded in seeds treated with GA3 500 ppm for 72 hrs. Seeds stored at 5℃ temperature and 8% moisture content was able to maintain viability for 24 months. Conclusion: GA3 at 500 ppm for 72 hrs is an effective pretreatment for breaking dormancy and enhancing germination in P. latifolia seeds while, storing seeds at lower temperatures could be useful in maintaining viability and vigour of the seeds for longer period.


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