Breaking Secondary Dormancy in Sesbania (Sesbania sesban) Seeds

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Kenson Kipkoech Langat
Faith N. W. Maina


Aims: To investigate the efficacy of various dormancy breaking methods on Sesbania seeds.

Study Design: Complete Randomized Design with 5 treatments and 4 replicates of 100 seeds each for the treatments.

Place and Duration of Study: Department of Seed, Crop and Horticultural Science and duration of the study was 2 months.

Methodology: Sesbania seeds were subjected to the following methods; mechanical scarification, soaking in hot water (67°C) for 15 minutes, soaking in concentrated H2SO4 for 15 seconds and leaching. A control experiment where the seeds were not subjected to any treatment was also prepared.  The seeds were then set up in Petri dishes up lined with 3 moist filter papers substratum for each method.  The Petri dishes were then put in a growth chamber set at a temperature of 24°C and 70% relative humidity.  Seeds that germinated every day were noted. 

Results: Dormancy breaking methods differed significantly from the control regarding the number of seeds that germinated at P≤0.05. Leaching method (77.8%) hot water (69.5%) Mechanical scarification (62.3%) and acid scarification (64.5%) were higher than for the control (51%).

Conclusion: Leaching was shown to be the best method to alleviate dormancy in the Sesbania seeds. Soaking in hot water, mechanical and acid scarifications also significantly increase germination.

Dormancy, Sesbania sesban, leaching, germination

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How to Cite
Kipkoech Langat, K., & N. W. Maina, F. (2018). Breaking Secondary Dormancy in Sesbania (Sesbania sesban) Seeds. Asian Journal of Research in Agriculture and Forestry, 1(1), 1-4.
Original Research Article