Numerical analysis of morphological variation of germplasm resources of dioscorea / 中国中药杂志
China Journal of Chinese Materia Medica
; (24): 318-324, 2013.
Article
en Zh
| WPRIM
| ID: wpr-346825
Biblioteca responsable:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>Botanical characters of germplasm resources of Dioscorea were observed and compared, which could to offer reference for its genetic improvement, germplasm resource identification and classification.</p><p><b>METHOD</b>Based on field cultivation, twenty-four morphological traits of ninety-four Dioscorea germplasm resources were observed or determined. And the morphological differences among germplasm resources were compared by principal component analysis and cluster analysis.</p><p><b>RESULT</b>There were ample morphological diversity in the twenty-four traits, in especially in leaf size and tuber characters of the ninety-four Dioscorea germplasm resources. The first seven principal components which accounted for 80. 957% of total variance were extracted from the principal component analysis. The ninety-four germplasm resources could be divided into four clusters, which belonging to Dioscorea opposite, D. persimili, D. fordii and D. alata respectively.</p><p><b>CONCLUSION</b>There were large morphological variation among germplasm resources on Dioscorea. Identification of germplasm resources of Dioscorea should focus on leaf size and tuber characters.</p>
Texto completo:
1
Base de datos:
WPRIM
Asunto principal:
Filogenia
/
Análisis por Conglomerados
/
China
/
Clasificación
/
Tallos de la Planta
/
Raíces de Plantas
/
Hojas de la Planta
/
Dioscorea
/
Análisis de Componente Principal
/
Genética
Tipo de estudio:
Prognostic_studies
País/Región como asunto:
Asia
Idioma:
Zh
Revista:
China Journal of Chinese Materia Medica
Año:
2013
Tipo del documento:
Article