| Registro completo |
| Provedor de dados: |
Scientia Agricola
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| País: |
Brazil
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| Título: |
Morphological phenotypic dispersion of garlic cultivars by cluster analysis and multidimensional scaling
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| Autores: |
Silva,Anderson Rodrigo da
Cecon,Paulo Roberto
Dias,Carlos Tadeu dos Santos
Puiatti,Mário
Finger,Fernando Luiz
Carneiro,Antônio Policarpo Souza
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| Data: |
2014-02-01
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| Ano: |
2014
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| Palavras-chave: |
Allium sativum L.
NMDS
UPGMA
Genetic divergence
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| Resumo: |
Multivariate techniques have become a useful tool for studying the phenotypic diversity of Germplasm Bank accessions, since they make it possible to combine a variety of different information from these accessions. This study aimed to characterize the phenotypic dispersion of garlic (Allium sativum L.) using two multivariate techniques with different objective functions. Twenty accessions were morphologically characterized for bulb diameter, length, and weight; number of cloves per bulb; number of leaves per plant; and leaf area. Techniques based on generalized quadratic distance of Mahalanobis, UPGMA (Unweighted Pair Group Method with Arithmetic Mean) clustering, and nMDS (nonmetrric MultiDimensional Scaling) were applied and the relative importance of variables quantified. The two multivariate techniques were capable of identifying cultivars with different characteristics, mainly regarding their classification in subgroups of common garlic or noble garlic, according to the number of cloves per bulb. The representation of the phenotypic distance of cultivars by multidimensional scaling was slightly more effective than that with UPGMA clustering.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000100005
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| Editor: |
São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
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| Relação: |
10.1590/S0103-90162014000100005
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| Formato: |
text/html
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| Fonte: |
Scientia Agricola v.71 n.1 2014
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| Direitos: |
info:eu-repo/semantics/openAccess
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