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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
13/11/2014 |
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Data da última atualização: |
13/11/2014 |
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Autoria: |
CIAVATTA, S. F.; SILVA, M. R. da; SIMÕES, D. |
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Título: |
Fertirrigação na produção de mudas de Eucalyptus grandis nos períodos de inverno e verão. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Cerne, Lavras, v. 20, n. 2, p. 217-222, abr./jun. 2014. |
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Idioma: |
Português |
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Conteúdo: |
Pesquisas correlacionando o parcelamento da fertirrigação com o desenvolvimento e qualidade de mudas florestais, em diferentes sistemas de produção e períodos do ano são fundamentais para a otimização de insumos e minimização do ciclo de produção. Dessa forma conduziu-se esse estudo com o objetivo de verificar a influência do parcelamento da fertirrigação no desenvolvimento e qualidade de mudas de Eucalyptus grandis nos períodos de inverno e verão. As fertilizações por meio do sistema de irrigação por capilaridade foram parceladas em: uma, duas, três ou seis vezes por semana, sendo mantida a quantidade total de nutrientes aplicados. Concluiu-se que, as fertirrigações mais eficazes para o desenvolvimento e a qualidade de mudas de Eucalyptus grandis foram de seis e uma vez na semana, para o período de inverno e verão, respectivamente, demonstrando-se a necessidade de adequação dos manejos de fertirrigação em função do período do ano. |
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Palavras-Chave: |
Eucalypt; Fertilization; Forest nursery; Parcelamento de fertilizantes; Splitting of fertilizer. |
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Thesagro: |
Adubação; Eucalipto; Viveiro Florestal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01673naa a2200241 a 4500
001 1999934
005 2014-11-13
008 2014 bl uuuu u00u1 u #d
100 1 $aCIAVATTA, S. F.
245 $aFertirrigação na produção de mudas de Eucalyptus grandis nos períodos de inverno e verão.
260 $c2014
520 $aPesquisas correlacionando o parcelamento da fertirrigação com o desenvolvimento e qualidade de mudas florestais, em diferentes sistemas de produção e períodos do ano são fundamentais para a otimização de insumos e minimização do ciclo de produção. Dessa forma conduziu-se esse estudo com o objetivo de verificar a influência do parcelamento da fertirrigação no desenvolvimento e qualidade de mudas de Eucalyptus grandis nos períodos de inverno e verão. As fertilizações por meio do sistema de irrigação por capilaridade foram parceladas em: uma, duas, três ou seis vezes por semana, sendo mantida a quantidade total de nutrientes aplicados. Concluiu-se que, as fertirrigações mais eficazes para o desenvolvimento e a qualidade de mudas de Eucalyptus grandis foram de seis e uma vez na semana, para o período de inverno e verão, respectivamente, demonstrando-se a necessidade de adequação dos manejos de fertirrigação em função do período do ano.
650 $aAdubação
650 $aEucalipto
650 $aViveiro Florestal
653 $aEucalypt
653 $aFertilization
653 $aForest nursery
653 $aParcelamento de fertilizantes
653 $aSplitting of fertilizer
700 1 $aSILVA, M. R. da
700 1 $aSIMÕES, D.
773 $tCerne, Lavras$gv. 20, n. 2, p. 217-222, abr./jun. 2014.
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Registro original: |
Embrapa Florestas (CNPF) |
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Biblioteca |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
10/12/2019 |
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Data da última atualização: |
10/12/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
MALAGODI-BRAGA, K. S.; MAIA, A. de H. N.; BATISTA, E. R.; RAKOCEVIC, M. |
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Afiliação: |
KATIA SAMPAIO MALAGOLI BRAGA, CNPMA; ALINE DE HOLANDA NUNES MAIA, CNPMA; EUNICE REIS BATISTA, CNPMA; M. RAKOCEVIC, Unicamp. |
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Título: |
Elevated CO2 mitigates the effects of anomalous drought reducing the proportion of abnormal reproductive structures in Arabic coffee. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
In: AGRICULTURE AND CLIMATE CHANGE CONFERENCE, 3., 2019, Budapest. [Abstracts...] Budapest: Elsevier Ltd., 2019. Ref. O3A.02. |
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Idioma: |
Português |
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Conteúdo: |
The increase in atmospheric carbon dioxide concentration [CO2] results in higher photosynthesis and growth of the upper layer structures in coffee trees. It was hypothesized that coffee trees would increase the reproductive investments of high plant layers under elevated [CO2](e[CO2]). The aim of this study was to estimate the dynamic in flowering intensity and quality at axis scale in free-air-CO2-enrichment (FACE) experiment over four years underrainfed conditions. The effects of actual [CO2](a[CO2], ~ 390 ?L CO2 L-1) and e[CO2] (~ 590 ?L CO2 L-1) on the flowering of Arabic coffee (cv. Red Catuaí IAC-144) were evaluated in completely randomized split-plot block design. Nonbranched second order plagiotropic axes from the upper layer, characterized by flower buds visually individualized on 13 to 16 metamers, were selected before the main flowering in 2012-2015. We used tulle bags to cover second order axes for reproductive structures collection. After abscission, buds and flowers were counted and classified as normal or abnormal. Flowering intensity and quality were impacted by e[CO2], varying by year. The coffee axes produced more reproductive structures in the first flowering year (2012) than later; this reproductive investment by axis was higher under e[CO2] than a[CO2] (Figure 1A-B). The % of dropped flower buds in 2012 was more than double compared to later years, without [CO2] impact (Figure 1C). High reproductive investments in the second-order axes in 2012 resulted from higher production of inflorescences per metamer compared to other years, with a positive e[CO2] effect. In 2014, drought in rainy period and high summer minimum temperatures (Figure 2) affected the inflorescences differentiation, increasing the proportion of abnormal reproductive structures compared to other years (Figure 1D). The e[CO2] reduced proportion of abnormal reproductive structures mitigating the anomalous drought effects. MenosThe increase in atmospheric carbon dioxide concentration [CO2] results in higher photosynthesis and growth of the upper layer structures in coffee trees. It was hypothesized that coffee trees would increase the reproductive investments of high plant layers under elevated [CO2](e[CO2]). The aim of this study was to estimate the dynamic in flowering intensity and quality at axis scale in free-air-CO2-enrichment (FACE) experiment over four years underrainfed conditions. The effects of actual [CO2](a[CO2], ~ 390 ?L CO2 L-1) and e[CO2] (~ 590 ?L CO2 L-1) on the flowering of Arabic coffee (cv. Red Catuaí IAC-144) were evaluated in completely randomized split-plot block design. Nonbranched second order plagiotropic axes from the upper layer, characterized by flower buds visually individualized on 13 to 16 metamers, were selected before the main flowering in 2012-2015. We used tulle bags to cover second order axes for reproductive structures collection. After abscission, buds and flowers were counted and classified as normal or abnormal. Flowering intensity and quality were impacted by e[CO2], varying by year. The coffee axes produced more reproductive structures in the first flowering year (2012) than later; this reproductive investment by axis was higher under e[CO2] than a[CO2] (Figure 1A-B). The % of dropped flower buds in 2012 was more than double compared to later years, without [CO2] impact (Figure 1C). High reproductive investments in the second-order axes in 2012 resulted f... Mostrar Tudo |
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Palavras-Chave: |
Axis scale; Coffee reproduction; Flowering intensity; Flowering quality. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/206685/1/RA-Malagodi-BragaKS-et-al-3rdAgricultureClimate...-2019-RefO3A.pdf
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Marc: |
LEADER 02666nam a2200193 a 4500
001 2116563
005 2019-12-10
008 2019 bl uuuu u00u1 u #d
100 1 $aMALAGODI-BRAGA, K. S.
245 $aElevated CO2 mitigates the effects of anomalous drought reducing the proportion of abnormal reproductive structures in Arabic coffee.$h[electronic resource]
260 $aIn: AGRICULTURE AND CLIMATE CHANGE CONFERENCE, 3., 2019, Budapest. [Abstracts...] Budapest: Elsevier Ltd., 2019. Ref. O3A.02.$c2019
520 $aThe increase in atmospheric carbon dioxide concentration [CO2] results in higher photosynthesis and growth of the upper layer structures in coffee trees. It was hypothesized that coffee trees would increase the reproductive investments of high plant layers under elevated [CO2](e[CO2]). The aim of this study was to estimate the dynamic in flowering intensity and quality at axis scale in free-air-CO2-enrichment (FACE) experiment over four years underrainfed conditions. The effects of actual [CO2](a[CO2], ~ 390 ?L CO2 L-1) and e[CO2] (~ 590 ?L CO2 L-1) on the flowering of Arabic coffee (cv. Red Catuaí IAC-144) were evaluated in completely randomized split-plot block design. Nonbranched second order plagiotropic axes from the upper layer, characterized by flower buds visually individualized on 13 to 16 metamers, were selected before the main flowering in 2012-2015. We used tulle bags to cover second order axes for reproductive structures collection. After abscission, buds and flowers were counted and classified as normal or abnormal. Flowering intensity and quality were impacted by e[CO2], varying by year. The coffee axes produced more reproductive structures in the first flowering year (2012) than later; this reproductive investment by axis was higher under e[CO2] than a[CO2] (Figure 1A-B). The % of dropped flower buds in 2012 was more than double compared to later years, without [CO2] impact (Figure 1C). High reproductive investments in the second-order axes in 2012 resulted from higher production of inflorescences per metamer compared to other years, with a positive e[CO2] effect. In 2014, drought in rainy period and high summer minimum temperatures (Figure 2) affected the inflorescences differentiation, increasing the proportion of abnormal reproductive structures compared to other years (Figure 1D). The e[CO2] reduced proportion of abnormal reproductive structures mitigating the anomalous drought effects.
653 $aAxis scale
653 $aCoffee reproduction
653 $aFlowering intensity
653 $aFlowering quality
700 1 $aMAIA, A. de H. N.
700 1 $aBATISTA, E. R.
700 1 $aRAKOCEVIC, M.
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