EFFECTS OF PRESOWING TREATMENTS ON GERMINATION BEHAVIOUR OF TOONA CILIATA M. ROEM

D. DHIMAN¹, G.P.S. DHILLON²*, S. THAKUR³, M. KUNDAL^4
1Department of Forestry & Natural Resources, Punjab Agricultural University, Ludhiana, 141004, Punjab, India
²Department of Forestry & Natural Resources, Punjab Agricultural University, Ludhiana, 141004, Punjab, India
³Department of Forestry & Natural Resources, Punjab Agricultural University, Ludhiana, 141004, Punjab, India
⁴Department of Forestry & Natural Resources, Punjab Agricultural University, Ludhiana, 141004, Punjab, India
* Corresponding Author : sapnakullu_thakur@rediffmail.com

Received : 12-01-2019     Accepted : 24-01-2019     Published : 30-01-2019
Volume : 11     Issue : 2       Pages : 7764 - 7767
Int J Agr Sci 11.2 (2019):7764-7767

Keywords : Germination, ANOVA, Hot water treatment
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Punjab Agricultural University, Ludhiana, 141004, Punjab
Author Contribution : All authors equally contributed

The present study was carried out to evaluate the effects of presowing treatments on germination and growth parameters in the seeds of Toona ciliata at Punjab Agricultural University, Ludhiana, Punjab (India). Matured seeds of Toona ciliata were collected from two middle aged, healthy plus trees selected from the Ludhiana and were treated with five presowing treatments viz., T₁ (Control), T₂ (immersion in cold water for 24 hrs), T₃ (Immersion in cold water for 48 hrs), T₄ (immersion in boiled hot water for 24 hrs) and T₅ (immersion in hot water for 48 hrs). Results showed that, germination success (Germination percent, Mean Daily Germination, Peak Value and Germination value) and growth performance (seedling height) except collar diameter were significantly increased compared to that in control. Seeds of both genotypes showed the similar trend for the various treatments. Germination started on 4-5 days and completed on 10-15 days in all cases. Highest germination percent (58.0%), Mean Daily Germination (3.62), Peak value (10.84) was found in T₅ (immersion in hot water for 48 hrs), followed by 55.50%, 3.47 and 10.46 in T₃ (immersion in cold water for 48 hrs). Highest Germination value (37.76) was found in T₃ (immersion in cold water for 48 hrs) followed by T₅ (immersion in hot water for 48 hrs) with 35.65 cm. ANOVA revealed significant differences for germination indices. Hot water treatment for 48 hrs, followed by cold water treatment for 48 hrs may be recommended for early and efficient germination performance.

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