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International Journal of Agricultural Research
  Year: 2012 | Volume: 7 | Issue: 4 | Page No.: 195-204
DOI: 10.3923/ijar.2012.195.204
 
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Effect of Some Presowing Treatments on Germination of Bauhinia rufescens Seeds
J.B.K. Asiedu, G.C. van der Puije, K.J. Taah and V. Dovlo

Abstract:
The study aimed at investigating the effect of chemical pre-sowing treatments on the germination of Bauhinia rufescens seeds. The pre-sowing treatments were made up of five different dilutions of concentrated sulphuric acid (10, 30, 50, 70, 90%), gibberellic acid (0.01, 0.03, 0.05, 0.07, 0.09) and potassium nitrate (0.1, 0.3, 0.5, 0.7, 0.9) and a control treated with distilled water. Pure seeds of Bauhinia rufescens were soaked in the various dilutions of sulphuric acid for 30 min while that of gibberellic acid and potassium nitrate were soaked for 24 h. The control was soaked in distilled water for all the respective treatments. The study lasted for 12 days during which data was collected daily on germination which was used to calculate germination capacity, germination value, germination rate, germination energy and coefficient of velocity of germination. Data was analysed using general analysis of variance at 5% significance level. There were significant differences between the treatments and interactions between the treatments and sub-treatments including the control were also significant. Sub-treatment 5 of treatment 1 (sulphuric acid) produced the highest germination capacity of 93.8% and had the highest germination energy at 7, 10 and 12 days after sowing. It produced the lowest germination rate at 25, 50 and 75% and had the highest coefficient of velocity of 69. Other sub-treatments which also had high germination capacity were sub-treatment 4 of treatment 1 (89.0%), sub-treatment 5 of treatment 2 (88.5%), sub-treatment 4 of treatment 2 (76.5). Germination capacity increased with increasing concentration for all treatments. Only sub-treatments 5 and 4 of treatments 1 and 2 attained 75% germination rate. The results showed that Sulphuric acid at 90% concentration was the most effective pre-sowing treatment for the germination of Bauhinia rufescens seeds followed by 70% concentration and that potassium nitrate was the least effective.
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How to cite this article:

J.B.K. Asiedu, G.C. van der Puije, K.J. Taah and V. Dovlo, 2012. Effect of Some Presowing Treatments on Germination of Bauhinia rufescens Seeds. International Journal of Agricultural Research, 7: 195-204.

DOI: 10.3923/ijar.2012.195.204

URL: https://scialert.net/abstract/?doi=ijar.2012.195.204

 
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