Journal of  Agricultural Sciences

Vol. 3 (6), pp.
433-436, June 2013.

 ISSN: 2276-7770 



Manuscript Number: 031513526


Effect of some Ecophysiological Stresses on Germination
Behaviour of Caesalpinia Pulcherrima (L.) Swartz


Fazal Hadi


Center of Plant Biodiversity and Botanical Garden,

University of Peshawar,

Peshawar, Pakistan.


Email:hadibotany @ yahoo. com


Caesalpinia pulcherrima (L.) Swartz (family
) is introduced and cultivated in
Pakistan as an ornamental plant. It has medicinal values as
well. Laboratory studies revealed that whole of seeds did
not germinate up to 60 days with any of the treatment. At
control seeds germinated 40%, while 60% and 70% at
presoaking for 12 and 24 hours respectively. 40% germination
occurred at one hour acid treatment and no germination at
three hours acid soaking and combination of acid and water.
Mechanical scarification and 12 hours water soaking showed
best results with 80% germination. There were no
satisfactory results with mechanical scarification and
chemical scarification combination. Similarly, mechanical
scarification, chemical scarification and water combination
gave poor results.

Keywords: Ecophysiology, Caesalpinia pulcherrima
germination, Water soaking, Sulphuric acid, Mechanical
scarification and 12 hours water soaking 80% germination.

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