| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Obtaining hybrids of cultivars and wild subspecies of cassava
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| Autores: |
Silva,Dreid de Cerqueira Silveira da
Martins,Márcio Lacerda Lopes
Santos,Ariana Silva
Santos,Vanderlei da Silva
Alves,Alfredo Augusto Cunha
Ledo,Carlos Alberto da Silva
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| Data: |
2018-02-01
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| Ano: |
2018
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| Palavras-chave: |
Manihot esculenta
Controlled pollination
Hybrid
Plant breeding
Wild relative species
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| Resumo: |
Abstract: The objective of this work was to evaluate the crossability between cassava (Manihot esculenta subsp. esculenta) cultivars and the subspecies M. esculenta subsp. flabellifolia and M. esculenta subsp. peruviana. Plants from the BRS Jari, BRS Formosa, BRS Verdinha, and BGM 2050 (Equador 72) cultivars were crossed with the two subspecies. During flowering, at pre-anthesis, pistillate flowers were covered with a nylon bag and staminate flowers on the same inflorescence were emasculated. The staminate flowers were collected and placed in flasks previously labeled and sterilized with alcohol; some fresh flowers were stored at room temperature due to asynchronous flowering. The crosses were made between 10 a.m. and 2 p.m. After pollination, the flowers were covered again. Evaluations were made from the moment of pollination to the dehiscence of the fruit. Of the total flowers pollinated, 38% were fertilized, and 504 developed fruits and 816 produced seeds were observed. As a male parent, M. esculenta subsp. flabellifolia is more efficient in crosses with M. esculenta subsp. esculenta and may be recommend for controlled crosses. The crosses between the cassava cultivars and M. esculenta subsp. flabellifolia and M. esculenta subsp. peruviana produce viable seeds.
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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=S0100-204X2018000200182
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/s0100-204x2018000200006
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.53 n.2 2018
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| Direitos: |
info:eu-repo/semantics/openAccess
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