| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Morphological diversity and identification key for landraces of the Amerindian yam in central Amazon
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| Autores: |
Beyerlein,Patrick
Pereira,Henrique dos Santos
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| Data: |
2018-04-01
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| Ano: |
2018
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| Palavras-chave: |
Dioscorea trifida
Agrobiodiversity
Dioscoraceae
Genetic resources
Native food plant
Phenotypic similarity
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| Resumo: |
Abstract: The objective of this work was to select an optimal set of morphological descriptors, in order to characterize the phenotipical diversity of Amerindian yam (Dioscorea trifida) landraces cultivated in the municipality of Caapiranga, in the central Amazon region of Brazil, and to develop a botanical identification key for them. A collection of 140 accessions and an experimental plot with a representative sample of 20 landraces were used to test 64 morphological descriptors for the aerial and subterranean plant parts. Forty-eight descriptors were selected, of which 13 were for tubers, 12 for stems, 14 for leaves, and 9 for inflorescences and seed. A cluster analysis based on the morphological data showed the formation of two landrace groups with greater similarity: white and purple pulp tubers. The results provide tools for in situ and ex situ conservation and for plant breeding programs, considering the importance of maintaining and recognizing the value of Ameridian yam as an important native genetic resource for food security in the region.
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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=S0100-204X2018000400405
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/s0100-204x2018000400002
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.53 n.4 2018
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| Direitos: |
info:eu-repo/semantics/openAccess
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