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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
12/05/2020 |
Data da última atualização: |
25/01/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
OLIVEIRA, E. J. de; OLIVEIRA, S. A. S. de; OTTO, C.; ALICAI, T.; FREITAS, J. P. X. de; CORTES, D. F. M.; PARIYO, A.; LIRI, C.; ADIGA, G.; BALMER, A.; ROBINSON, M. |
Afiliação: |
EDER JORGE DE OLIVEIRA, CNPMF; SAULO ALVES SANTOS DE OLIVEIRA, CNPMF; CAROLINE OTTO, Syngenta Foundation for Sustainable Agriculture; TITUS ALICAI, NaCRRI; JUAN PAULO XAVIER DE FREITAS; DIEGO FERNANDO MARMOLEJO CORTES; ANTHONY PARIYO; CHARLES LIRI, NaCRRI; GERALD ADIGA, NaCRRI; ANDREA BALMER, Syngenta Foundation for Sustainable Agriculture; MIKE ROBINSON, Syngenta Foundation for Sustainable Agriculture. |
Título: |
A novel seed treatment-based multiplication approach for cassava planting material. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Plos One, v.15, n.3, e0229943, March, 2020. |
Idioma: |
Inglês |
Conteúdo: |
Cassava (Manihot esculenta Crantz) is an important food security crop in many parts of the developing world. The crop?s high yield potential and multitude of uses?both for nutrition and processing?render cassava a promising driver for the development of rural value chains. It is traditionally propagated from stem cuttings of up to 30 cm in length, giving a multiplication rate as low as 1:10. Propagating cassava traditionally is very inefficient, which leads to challenges in the production and distribution of quality planting material and improved cultivars, greatly limiting the impact of investments in crop breeding. The work described in the present study aimed to develop a seed treatment approach to facilitate the use of shorter seed pieces, increasing the multiplication rate of cassava and thus making the crop?s seed systems more efficient. After several tests, formulation was identified, consisting of thiamethoxam 21 g ha-1, mefenoxam 1.0 g ha-1, fludioxonil 1.3 g ha-1, thiabendazole 7.5 g ha-1 and Latex 2% as a binder. Plant growing from seed pieces treated with this formulation displayed increased crop establishment and early crop vigor, leading to an improved productivity throughout a full growing cycle. This allowed to reduce the cassava seed piece size to 8 cm with no negative effects on germination and crop establishment, leading to yields comparable to those from untreated 16 cm pieces. This, in turn, will allow to increase the multiplication ratio of cassava by a factor of up to 3. Notably, this was possible under regular field conditions and independently of any specialised treatment facilities. Compared with existing seed production protocols, the increased multiplication rates allowed for efficiency gains of between 1 to 1.9 years compared to conventional five-year cycles. We believe that the technology described here holds considerable promise for developing more reliable and remunerative delivery channels for quality cassava planting material and improved genetics. MenosCassava (Manihot esculenta Crantz) is an important food security crop in many parts of the developing world. The crop?s high yield potential and multitude of uses?both for nutrition and processing?render cassava a promising driver for the development of rural value chains. It is traditionally propagated from stem cuttings of up to 30 cm in length, giving a multiplication rate as low as 1:10. Propagating cassava traditionally is very inefficient, which leads to challenges in the production and distribution of quality planting material and improved cultivars, greatly limiting the impact of investments in crop breeding. The work described in the present study aimed to develop a seed treatment approach to facilitate the use of shorter seed pieces, increasing the multiplication rate of cassava and thus making the crop?s seed systems more efficient. After several tests, formulation was identified, consisting of thiamethoxam 21 g ha-1, mefenoxam 1.0 g ha-1, fludioxonil 1.3 g ha-1, thiabendazole 7.5 g ha-1 and Latex 2% as a binder. Plant growing from seed pieces treated with this formulation displayed increased crop establishment and early crop vigor, leading to an improved productivity throughout a full growing cycle. This allowed to reduce the cassava seed piece size to 8 cm with no negative effects on germination and crop establishment, leading to yields comparable to those from untreated 16 cm pieces. This, in turn, will allow to increase the multiplication ratio of cassava by a... Mostrar Tudo |
Thesagro: |
Mandioca. |
Thesaurus Nal: |
Cassava. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/212900/1/Oliveira-et-al-PlosOne-2020.pdf
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Marc: |
LEADER 02737naa a2200265 a 4500 001 2122236 005 2021-01-25 008 2020 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, E. J. de 245 $aA novel seed treatment-based multiplication approach for cassava planting material.$h[electronic resource] 260 $c2020 520 $aCassava (Manihot esculenta Crantz) is an important food security crop in many parts of the developing world. The crop?s high yield potential and multitude of uses?both for nutrition and processing?render cassava a promising driver for the development of rural value chains. It is traditionally propagated from stem cuttings of up to 30 cm in length, giving a multiplication rate as low as 1:10. Propagating cassava traditionally is very inefficient, which leads to challenges in the production and distribution of quality planting material and improved cultivars, greatly limiting the impact of investments in crop breeding. The work described in the present study aimed to develop a seed treatment approach to facilitate the use of shorter seed pieces, increasing the multiplication rate of cassava and thus making the crop?s seed systems more efficient. After several tests, formulation was identified, consisting of thiamethoxam 21 g ha-1, mefenoxam 1.0 g ha-1, fludioxonil 1.3 g ha-1, thiabendazole 7.5 g ha-1 and Latex 2% as a binder. Plant growing from seed pieces treated with this formulation displayed increased crop establishment and early crop vigor, leading to an improved productivity throughout a full growing cycle. This allowed to reduce the cassava seed piece size to 8 cm with no negative effects on germination and crop establishment, leading to yields comparable to those from untreated 16 cm pieces. This, in turn, will allow to increase the multiplication ratio of cassava by a factor of up to 3. Notably, this was possible under regular field conditions and independently of any specialised treatment facilities. Compared with existing seed production protocols, the increased multiplication rates allowed for efficiency gains of between 1 to 1.9 years compared to conventional five-year cycles. We believe that the technology described here holds considerable promise for developing more reliable and remunerative delivery channels for quality cassava planting material and improved genetics. 650 $aCassava 650 $aMandioca 700 1 $aOLIVEIRA, S. A. S. de 700 1 $aOTTO, C. 700 1 $aALICAI, T. 700 1 $aFREITAS, J. P. X. de 700 1 $aCORTES, D. F. M. 700 1 $aPARIYO, A. 700 1 $aLIRI, C. 700 1 $aADIGA, G. 700 1 $aBALMER, A. 700 1 $aROBINSON, M. 773 $tPlos One$gv.15, n.3, e0229943, March, 2020.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
Biblioteca(s): |
Embrapa Café. |
Data corrente: |
02/03/2017 |
Data da última atualização: |
17/03/2017 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
VILELA, A. L.; ROSA, S. D. V. F. da; SOUZA, A. C. de; CARDOSO, D. B.; SOUZA, L. N. C. de; STÉPHANO FILHO, R. |
Afiliação: |
AMANDA LIMA VILELA, UFLA; STTELA DELLYZETE VEIGA F DA ROSA, SAPC; ANA CRISTINA DE SOUZA, UFLA; DANILO BARBOSA CARDOSO, UFLA; LUCAS NARDELLI CHALFOUN DE SOUZA, UFLA; RICARDO STÉPHANO FILHO, UFLA. |
Título: |
Caracterização física e fisiológica de sementes do cafeeiro Big coffe. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
In: CONGRESSO DE INICIAÇÃO CIENTÍFICA DA UFLA, 29., 2016, Lavras. [Anais...] Lavras: Universidade Federal de Lavras, 2016. |
Idioma: |
Português |
Conteúdo: |
Um cafeeiro produzindo frutos e folhas grandes, em relação aos cafeeiros convencionais, possivelmente gerado por mutação genética, foi encontrado em lavoura de Coffea arábica L., cultivar Acaiá, na cidade de Capitólio, no Centro-Oeste de Minas Gerais. Progênies desta nova planta, nomeada "Big Coffee VL", foram cultivadas em Piumhí (MG) e as sementes provenientes destas progênies foram colhidas e classificadas em pequenas, médias e grandes, as quais foram utilizadas para a implantação de lavoura no Setor de Cafeicultura na Universidade Federal de Lavras. Assim, torna-se de grande interesse a caracterização deste novo material e o objetivo neste trabalho foi realizar a caracterização física e fisiológica das sementes produzidas nos cafeeiros que produzem sementes pequenas, médias e grandes. |
Palavras-Chave: |
Big coffe; Caracterização física. |
Thesagro: |
Germinação. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/156821/1/Caracterizacao-fisica-e-fisiologica-de-sementes.pdf
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Marc: |
LEADER 01511nam a2200205 a 4500 001 2065745 005 2017-03-17 008 2016 bl uuuu u00u1 u #d 100 1 $aVILELA, A. L. 245 $aCaracterização física e fisiológica de sementes do cafeeiro Big coffe.$h[electronic resource] 260 $aIn: CONGRESSO DE INICIAÇÃO CIENTÍFICA DA UFLA, 29., 2016, Lavras. [Anais...] Lavras: Universidade Federal de Lavras$c2016 520 $aUm cafeeiro produzindo frutos e folhas grandes, em relação aos cafeeiros convencionais, possivelmente gerado por mutação genética, foi encontrado em lavoura de Coffea arábica L., cultivar Acaiá, na cidade de Capitólio, no Centro-Oeste de Minas Gerais. Progênies desta nova planta, nomeada "Big Coffee VL", foram cultivadas em Piumhí (MG) e as sementes provenientes destas progênies foram colhidas e classificadas em pequenas, médias e grandes, as quais foram utilizadas para a implantação de lavoura no Setor de Cafeicultura na Universidade Federal de Lavras. Assim, torna-se de grande interesse a caracterização deste novo material e o objetivo neste trabalho foi realizar a caracterização física e fisiológica das sementes produzidas nos cafeeiros que produzem sementes pequenas, médias e grandes. 650 $aGerminação 653 $aBig coffe 653 $aCaracterização física 700 1 $aROSA, S. D. V. F. da 700 1 $aSOUZA, A. C. de 700 1 $aCARDOSO, D. B. 700 1 $aSOUZA, L. N. C. de 700 1 $aSTÉPHANO FILHO, R.
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