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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
12/05/2020 |
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Data da última atualização: |
25/01/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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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. |
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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. |
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Título: |
A novel seed treatment-based multiplication approach for cassava planting material. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Plos One, v.15, n.3, e0229943, March, 2020. |
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Idioma: |
Inglês |
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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 |
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Thesagro: |
Mandioca. |
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Thesaurus Nal: |
Cassava. |
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Categoria do assunto: |
-- |
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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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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Tipo/Formato |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
12/08/2016 |
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Data da última atualização: |
24/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
JARDINE, K. J.; GIMENEZ, B. O.; ARAUJO, A. C.; CUNHA, R. L.; FELIZZOLA, J. F.; PIVA, L. R.; CHAMBERS, J. Q.; HIGUCHI, N. |
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Afiliação: |
Kolby J. Jardine, Lawrence Berkeley National Laboratory; Bruno O. Gimenez, INPA; ALESSANDRO CARIOCA DE ARAUJO, CPATU; ROBERTO LISBOA CUNHA, CPATU; JULIANA FEITOSA FELIZZOLA, CPATU; Luani R. Piva, INPA; Jeffrey Q. Chambers, Lawrence Berkeley National Laboratory / University of California Berkeley; Niro Higuchi, INPA. |
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Título: |
Diurnal pattern of leaf, flower and fruit specific ambient volatiles above an oil palm plantation in Pará State, Brazil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of the Brazilian Chemical Society, v. 27, n. 8, p. 1484-1492, Aug. 2016. |
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DOI: |
http://dx.doi.org/10.5935/0103-5053.20160194 |
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Idioma: |
Inglês |
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Conteúdo: |
Oil palm plantations are rapidly expanding in the tropics because of insatiable global demand for fruit oil to be used in food, biofuels and cosmetics. Here we show that three tissue-specific volatiles can be quantified in ambient air above an African-American hybrid oil palm plantation in Brazil and linked photosynthesis (isoprene), floral scent (estragole), and for the first time, fruit oil processing (6-methyl-5-hepten-2-one, MHO). Plant enclosure techniques verified their tissue specific emission sources with ambient concentrations displaying distinct diurnal patterns above the canopy. Isoprene concentrations were near zero at night, but dramatically increased during the day while estragole showed elevated concentrations at night suggesting a light-independent, temperature-driven emission pattern from flowers. MHO also showed elevated concentrations at night and both estragole and MHO increased during the day. Our observations demonstrate that the African-American oil palm hybrid is strong isoprene emitter and suggest that MHO is a specific oxidation product of lycopene released during the industrial processing of palm oil. This study highlights the potential value of quantifying volatile oil palm signals in the atmosphere as a novel, non-invasive method to better understand biological functioning and its interactions with the environment including carbon assimilation, floral-insect interactions, and fruit oil production/ processing. |
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Palavras-Chave: |
Environmental analysis/quality. |
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Thesaurus NAL: |
bioactive compounds; biomarkers; chemical ecology; essential oils; mass spectrometry. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02395naa a2200289 a 4500
001 2050815
005 2022-05-24
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.5935/0103-5053.20160194$2DOI
100 1 $aJARDINE, K. J.
245 $aDiurnal pattern of leaf, flower and fruit specific ambient volatiles above an oil palm plantation in Pará State, Brazil.$h[electronic resource]
260 $c2016
520 $aOil palm plantations are rapidly expanding in the tropics because of insatiable global demand for fruit oil to be used in food, biofuels and cosmetics. Here we show that three tissue-specific volatiles can be quantified in ambient air above an African-American hybrid oil palm plantation in Brazil and linked photosynthesis (isoprene), floral scent (estragole), and for the first time, fruit oil processing (6-methyl-5-hepten-2-one, MHO). Plant enclosure techniques verified their tissue specific emission sources with ambient concentrations displaying distinct diurnal patterns above the canopy. Isoprene concentrations were near zero at night, but dramatically increased during the day while estragole showed elevated concentrations at night suggesting a light-independent, temperature-driven emission pattern from flowers. MHO also showed elevated concentrations at night and both estragole and MHO increased during the day. Our observations demonstrate that the African-American oil palm hybrid is strong isoprene emitter and suggest that MHO is a specific oxidation product of lycopene released during the industrial processing of palm oil. This study highlights the potential value of quantifying volatile oil palm signals in the atmosphere as a novel, non-invasive method to better understand biological functioning and its interactions with the environment including carbon assimilation, floral-insect interactions, and fruit oil production/ processing.
650 $abioactive compounds
650 $abiomarkers
650 $achemical ecology
650 $aessential oils
650 $amass spectrometry
653 $aEnvironmental analysis/quality
700 1 $aGIMENEZ, B. O.
700 1 $aARAUJO, A. C.
700 1 $aCUNHA, R. L.
700 1 $aFELIZZOLA, J. F.
700 1 $aPIVA, L. R.
700 1 $aCHAMBERS, J. Q.
700 1 $aHIGUCHI, N.
773 $tJournal of the Brazilian Chemical Society$gv. 27, n. 8, p. 1484-1492, Aug. 2016.
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