Occurrence and frequency of precocious germination of somatic embryos is a genotpye - dependent phenomenon in wheat.
Plant Cell Rep
; 7(7): 538-41, 1988 Dec.
Article
en En
| MEDLINE
| ID: mdl-24240411
Immature embryos of thirty-three genotypes of wheat were cultured on 2,4-D containing medium. Occurrence of precocious germination of the zygotic and somatic embryos simultaneously on the same medium was a striking feature observed during the course of work. The percentage of precocious germination was seen to vary extensively from 0-88% and 0-84% for zygotic and somatic embryos respectively. In the genotypes NI-5439 and NI-5643 which are characterized by a high tillering capacity, the phenomenon of precocious germination seems to take a different path from that observed in the other genotypes. This is evident since these two genotypes require total absence of hormone for shoot elongation although multiple shoot primordia are formed on auxin containing medium.Precocious germination also seems to be relevant to somatic embryogenesis and plantlet regeneration. This conclusion stems from the observation that a majority of the genotypes that show precocious germination of zygotic embryos have greater embryogenic potential. Consecutively, most of the genotypes that show precocious germination of somatic embryos exhibit a higher frequency and faster rate of plantlet regeneration.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Plant Cell Rep
Asunto de la revista:
BOTANICA
Año:
1988
Tipo del documento:
Article
País de afiliación:
India
Pais de publicación:
Alemania