@article{Nhat Linh_Nam_Kim Yen_Cuong_Huy_Nhut_2012, title={Effects of activated charcoal on the root orientation of Anthurium andraeanum and Chrysanthemum morifolium cultured in vitro}, volume={34}, url={https://vjs.ac.vn/index.php/vjbio/article/view/2472}, DOI={10.15625/0866-7160/v34n3.2472}, abstractNote={<p>Activated charcoal (AC) is usually used in culture media to enhance the growth and development of <em>in vitro </em>plants, however, the effective ness of root orientation of AC has not yet been investigated. Therefore, the precursor of root orientation designs was carried out by dividing media into two parts, AC-free part and AC part with the optimal investigated concentrations, 2 g/l AC for <em>Anthurium</em> <em>andraeanum</em><em> </em>and 3 g/l AC for <em>Chrysanthemum </em><em>morifolium</em> and then examining effects of positions of AC part (top, center or bottom). The results showed that most of the developing roots occurred in the AC parts (over 80%). Moreover, the root orientation of <em>A. </em><em>andraeanum</em> was more considerable than that of <em>C. </em><em>morifolium</em>. In addition, position of AC part in the bottom was the best for the growth and development of <em>in vitro</em> roots and shoots of <em>A.</em> <em>andraeanum</em><em> </em>and <em>C. </em><em>morifolium</em>. Besides, plantlets were grown and developed well <em>in vitro</em> conditions also have good growth and development in <em>ex vitro</em> conditions. The results have a great signification in plant micropropagation.</p>}, number={3}, journal={Academia Journal of Biology}, author={Nhat Linh, Nguyen Thi and Nam, Nguyen Ba and Kim Yen, Nguyen Thi and Cuong, Le Kim and Huy, Nguyen Phuc and Nhut, Duong Tan}, year={2012}, month={Oct.}, pages={377–388} }