| Summary: | <p class="Default">Pollen germination forms one of the most important stage post pollination prior to fertilization. This is essential for proper seed setting and seed development. <em>In vitro </em>pollen germination test is the most reliable way of assessing the pollen viability. In the present study pollen grains of seven genera under Apocynaceae family namely, <em>Allamanda</em>, <em>Alstonia</em>, <em>Catharanthus</em>, <em>Nerium, Plumeria</em>, <em>Thevetia </em>and <em>Tabernaemontana </em>were tested in some basic cultural media, such as Brewbaker’s media, 6% Glucose solution, 4% Calcium Nitrate solution and 3% Boron solution. <em>Alstonia </em>pollen grains exhibited highest percentage of germination rate in all the cultural media. Glucose and Brewbaker’s media is found to be highly suitable for efficient pollen germination in all the genera. Boron solution is effective for germination of pollen grains of tree species. <em>In vitro </em>pollen germination can be easily carried out in laboratories. These results can be utilised in plant breeding programmes to improve cultivar and varieties.</p> <p>DOI: <a href="http://dx.doi.org/10.3126/ije.v3i3.11074">http://dx.doi.org/10.3126/ije.v3i3.11074</a></p> <p>International Journal of Environment Vol.3(3) 2014: 146-153</p>
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