Gamma irradiation on Alstroemeria aurea G. in vitro rhizomes: : an approach to the appropriate dosage for breeding purposes
Gamma irradiation has been widely used as a breeding technique to obtain new cultivars in ornamental species such as Alstroemeria, where several cultivars have been obtained through rhizome radiation. The optimum dosage for an appropriate induction of mutation must be considered for breeding purpose...
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| Autores principales: | , , , |
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| Formato: | article Artículo publishedVersion |
| Lenguaje: | Inglés |
| Publicado: |
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
2012
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| Materias: | |
| Acceso en línea: | http://bdigital.uncu.edu.ar/4523 |
| Aporte de: |
| id |
I11-R84523 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de Cuyo |
| institution_str |
I-11 |
| repository_str |
R-8 |
| collection |
Biblioteca Digital |
| language |
Inglés |
| orig_language_str_mv |
eng |
| topic |
Chile Mutación Brotación Mejoramiento genético Irradiación gamma Mutation Sprouting Breeding Radio susceptibilidad |
| spellingShingle |
Chile Mutación Brotación Mejoramiento genético Irradiación gamma Mutation Sprouting Breeding Radio susceptibilidad Aros, Danilo Valdés, Santiago Olate, Eduardo Infante, Rodrigo Gamma irradiation on Alstroemeria aurea G. in vitro rhizomes: : an approach to the appropriate dosage for breeding purposes |
| topic_facet |
Chile Mutación Brotación Mejoramiento genético Irradiación gamma Mutation Sprouting Breeding Radio susceptibilidad |
| description |
Gamma irradiation has been widely used
as a breeding technique to obtain new cultivars
in ornamental species such as Alstroemeria,
where several cultivars have been obtained
through rhizome radiation. The optimum dosage
for an appropriate induction of mutation must be
considered for breeding purposes and it depends
mainly on plant susceptibility. Thus in this study
in vitro cultured rhizomes of Alstroemeria aurea
were irradiated with a gamma source using
different dosages to evaluate the direct effect
produced. Damage and number of rhizome
sprouting were observed and recorded during
61 days after irradiation. At the end of this period,
rhizomes were weighted and mortality was
evaluated. Both mortality and weight increased
depending on dosage. All irradiated rhizomes
showed early sprouting in comparison with
control (0 Gy) and no significant difference in final
number of shoots after 61 days among irradiated
treatments was observed. Bleaching and necrosis
was observed in all irradiated rhizomes and
was more evident at higher doses. LD50 was
established at about 40 Gy and the optimum
dosage to induce mutation was suggested
between 2.5 and 5 Gy, when the growth was
reduced in 50%, and probably this dosage could
be used for breeding purposes.
|
| format |
article Artículo Artículo publishedVersion |
| author |
Aros, Danilo Valdés, Santiago Olate, Eduardo Infante, Rodrigo |
| author_facet |
Aros, Danilo Valdés, Santiago Olate, Eduardo Infante, Rodrigo |
| author_sort |
Aros, Danilo |
| title |
Gamma irradiation on Alstroemeria aurea G. in vitro rhizomes:
: an approach to the appropriate dosage for breeding purposes |
| title_short |
Gamma irradiation on Alstroemeria aurea G. in vitro rhizomes:
: an approach to the appropriate dosage for breeding purposes |
| title_full |
Gamma irradiation on Alstroemeria aurea G. in vitro rhizomes:
: an approach to the appropriate dosage for breeding purposes |
| title_fullStr |
Gamma irradiation on Alstroemeria aurea G. in vitro rhizomes:
: an approach to the appropriate dosage for breeding purposes |
| title_full_unstemmed |
Gamma irradiation on Alstroemeria aurea G. in vitro rhizomes:
: an approach to the appropriate dosage for breeding purposes |
| title_sort |
gamma irradiation on alstroemeria aurea g. in vitro rhizomes:
: an approach to the appropriate dosage for breeding purposes |
| publisher |
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
|
| publishDate |
2012 |
| url |
http://bdigital.uncu.edu.ar/4523 |
| work_keys_str_mv |
AT arosdanilo gammairradiationonalstroemeriaaureaginvitrorhizomesanapproachtotheappropriatedosageforbreedingpurposes AT valdessantiago gammairradiationonalstroemeriaaureaginvitrorhizomesanapproachtotheappropriatedosageforbreedingpurposes AT olateeduardo gammairradiationonalstroemeriaaureaginvitrorhizomesanapproachtotheappropriatedosageforbreedingpurposes AT infanterodrigo gammairradiationonalstroemeriaaureaginvitrorhizomesanapproachtotheappropriatedosageforbreedingpurposes AT arosdanilo irradiacionderizomasinvitrodealstroemeriaaureagconrayosgammaunaaproximacionaladosisapropiadaparautilizarenmejoramientogenetico AT valdessantiago irradiacionderizomasinvitrodealstroemeriaaureagconrayosgammaunaaproximacionaladosisapropiadaparautilizarenmejoramientogenetico AT olateeduardo irradiacionderizomasinvitrodealstroemeriaaureagconrayosgammaunaaproximacionaladosisapropiadaparautilizarenmejoramientogenetico AT infanterodrigo irradiacionderizomasinvitrodealstroemeriaaureagconrayosgammaunaaproximacionaladosisapropiadaparautilizarenmejoramientogenetico |
| bdutipo_str |
Repositorios |
| _version_ |
1764820404271054848 |