Resumo

GONZALEZ PANEQUE, Orlando S.; HERNANDEZ ESPINOSA, Margarita; SILVA PUPO, Juan J.  e  ESPINOSA REYES, Ángel. Evaluation of the dynamics of the growth in vitro callus of Ipomoea batatas. Rev. colomb. biotecnol [online]. 2011, vol.13, n.1, pp.148-155. ISSN 0123-3475.

The cultivation of the sweet potato presents a great importance, since you can use in the human feeding, animal as well as in the industry, the same one produces roots reservantes of great caloric and nutritious value with high content of carbohydrates. Between the roots and cultivated tubers it is the second in importance and it represents more than 80% of the world production. The employment of the techniques in vitro constitutes a powerful tool in the commercial, propitiated exploitation the employment of the micropropagación in different species. It is for it that you/they were gathered to develop the present work tuberous roots of the clon INIVIT B 93-1. Was realized the formation of callus with embryogenic structures, explantes of leaves were used, disinfected with hipoclorito of sodium (1%) and inoculated in the tissue culture medium proposed by Murashige and Skoog (1962), vitamins MS (10.0 ml/l^-1), myoinositol (100 mg/l^-1), sucrose (3%), gelryte (0.2%), 2,4-D (0.25-2.5 mg/l^-1) and 6-BAP (0.25-1.0 mg/l^-1), the pH was adjusted 5.8 ± 0.01 maintained in the darkness during thirty days, being achieved the best results with the use of the 2,4-D (0.50 mg/l^-1) and 6-BAP (0,25 mg/l^-1) and was evaluated the grow dynamic and obtained the better resulted between 28 and 32 days after culture, for that which the obtained results will serve from base to other studies and they will allow to evaluate, to control and to develop strategies for the conservation and use of the natural resources, giving execution to the objective with respect to studying the dynamics of the growth potentially in the formation of tripes embriogénicos in the cultivation of the sweet potato.

Palavras-chave : Sweet potato; cultivate in vitro; regulating of the growth.