Establecimiento in vitro de Cedrela salvadorensis Standl
Fecha
2010
Autores
Soto Vargas, Bibiana
Valverde Cerdas, Lisette
Rojas Vargas, Alejandra
Hine, Ana
Título de la revista
ISSN de la revista
Título del volumen
Editor
Instituto Tecnológico, Costa Rica.
Resumen
El objetivo del trabajo fue establecer una metodología para introducir el procedimiento in vitro como una alternativa de propagación para futuros trabajos de conservación o mejoramiento genético de la especie. Como material experimental se utilizaron tanto plántulas de invernadero de ocho meses de edad para la introducción de estaquillas como plántulas de semillas germinadas in vitro para la obtención de segmentos de nudo. En la desinfección de las estaquillas se utilizó Benlate® (Benomil) 0,5 gL-1 y Agrimicin® (estreptomicina) 4,5 gL-1. Los desinfectantes evaluados fueron NaOCl (3% i.a) durante 10 minutos y CaOCl (9,23% i.a) durante 25 minutos. Todos los explantes se colocaron en un medio de cultivo Murashige y Skoog (1962) que se complementó con 2.7 gL-1 de gelrite y cuatro concentraciones de Benciladenina (BA) (0; 0,5; 1,5; 2,5 y 3,5 mgL-1). El mejor método para la desinfección de las estaquillas fue NaOCl (3% i.a) durante 10 minutos. La mejor respuesta de las estaquillas de plántulas de invernadero se observó en la concentración de 0,5 mgL-1 de BA; por su parte, la mejor respuesta de las plántulas germinadas in vitro fue en 2,5 mL-1 de BA.
The objective of this work was to establish a methodology of in vitro introduction as a propagation alternative for future conservation or species improvement projects. Eight-month seedlings from a greenhouse were used as the experimental material for the introduction of pegs and seedlings from in vitro germinated seeds to obtain knots segments. For the disinfestations of the pegs Benlate™ (Benomil) 0,5 gL-1 and Agrimicin™ (estreptomicine) 4,5 gL-1 were utilized. The evaluated disinfectants were NaOCl (3% a.i) for 10 minutes and CaOCl (9.23% a.i) for 25 minutes. All the explants were cultivated in Murashige and Skoog (MS) medium complemented with 2.7 gL-1 of gelrite and four concentrations of Benciladenina (BA) (0; 0,5; 1,5; 2,5 y 3,5 mgL-1). The best method for the disinfestations of the pegs was NaOCl (3% a.i) for 10 minutes. The best results from the peg’s seedlings at the greenhouse were obtained by using the 0,5 m gL-1 of BA and for the in vitro germinated seedlings by using 2,5 mgL-1 of BA.
The objective of this work was to establish a methodology of in vitro introduction as a propagation alternative for future conservation or species improvement projects. Eight-month seedlings from a greenhouse were used as the experimental material for the introduction of pegs and seedlings from in vitro germinated seeds to obtain knots segments. For the disinfestations of the pegs Benlate™ (Benomil) 0,5 gL-1 and Agrimicin™ (estreptomicine) 4,5 gL-1 were utilized. The evaluated disinfectants were NaOCl (3% a.i) for 10 minutes and CaOCl (9.23% a.i) for 25 minutes. All the explants were cultivated in Murashige and Skoog (MS) medium complemented with 2.7 gL-1 of gelrite and four concentrations of Benciladenina (BA) (0; 0,5; 1,5; 2,5 y 3,5 mgL-1). The best method for the disinfestations of the pegs was NaOCl (3% a.i) for 10 minutes. The best results from the peg’s seedlings at the greenhouse were obtained by using the 0,5 m gL-1 of BA and for the in vitro germinated seedlings by using 2,5 mgL-1 of BA.
Descripción
Palabras clave
CEDRELA, FITOMEJORAMIENTO, PLANT BREEDING, MICROPROPAGACIÓN, MICROPROPAGATION, TÉCNICAS DE CULTIVO, CULTIVATION TECHNIQUES