Principal Component and Cluster Analysis as a Tool in the Assessment of Tomato Hybrids and Cultivars
Joint Authors
Koutsika-Sotiriou, M.
Traka-Mavrona, E.
Evgenidis, G.
Source
International Journal of Agronomy
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-07-26
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Determination of germplasm diversity and genetic relationships among breeding materials is an invaluable aid in crop improvement strategies.
This study assessed the breeding value of tomato source material.
Two commercial hybrids along with an experimental hybrid and four cultivars were assessed with cluster and principal component analyses based on morphophysiological data, yield and quality, stability of performance, heterosis, and combining abilities.
The assessment of commercial hybrids revealed a related origin and subsequently does not support the identification of promising offspring in their crossing.
The assessment of the cultivars discriminated them according to origin and evolutionary and selection effects.
On the Principal Component 1, the largest group with positive loading included, yield components, heterosis, general and specific combining ability, whereas the largest negative loading was obtained by qualitative and descriptive traits.
The Principal Component 2 revealed two smaller groups, a positive one with phenotypic traits and a negative one with tolerance to inbreeding.
Stability of performance was loaded positively and/or negatively.
In conclusion, combing ability, yield components, and heterosis provided a mechanism for ensuring continued improvement in plant selection programs.
American Psychological Association (APA)
Evgenidis, G.& Traka-Mavrona, E.& Koutsika-Sotiriou, M.. 2011. Principal Component and Cluster Analysis as a Tool in the Assessment of Tomato Hybrids and Cultivars. International Journal of Agronomy،Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-491483
Modern Language Association (MLA)
Evgenidis, G.…[et al.]. Principal Component and Cluster Analysis as a Tool in the Assessment of Tomato Hybrids and Cultivars. International Journal of Agronomy No. 2011 (2011), pp.1-7.
https://search.emarefa.net/detail/BIM-491483
American Medical Association (AMA)
Evgenidis, G.& Traka-Mavrona, E.& Koutsika-Sotiriou, M.. Principal Component and Cluster Analysis as a Tool in the Assessment of Tomato Hybrids and Cultivars. International Journal of Agronomy. 2011. Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-491483
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-491483