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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
10/04/2015 |
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Data da última atualização: |
10/04/2015 |
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Autoria: |
SIMÃO, F. R. |
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Afiliação: |
Fulvio Rodriguez Simão. |
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Título: |
The effects of varying levels of deficit irrigation and episodic drought stress on West Texas cotton cultivars. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
2013. |
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Páginas: |
214 f. |
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Idioma: |
Inglês |
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Notas: |
Dissertation (Doctor of Philosophy) - Texas Tech University, Texas. |
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Conteúdo: |
Water availability and plant water use efficiency are important issues facing cotton production in West Texas. Trials were conducted to compare the growth, gas exchange, yield, and quality of West Texas cultivars subjected to different levels and timings of water deficit. In the first experiment, cotton cultivars were subjected to consistent levels of irrigation, ranging from full irrigation to dryland after first square. In the second experiment, cultivars were exposed to episodic water deficit events during the season. The effects of irrigation treatments upon physiological parameters such as leaf photosynthesis, transpiration, and temperature, were measured, and agronomic water use efficiency was calculated for each treatment. An economic analysis was also performed to verify treatment profitability. Yield and most of the quality parameters presented were significantly affected by drought episode and cultivar selection. The data shows that in all years and locations the irrigation strategy with no irrigation interruption provided the best yields. Regarding episodic drought events, the highest reduction in yields was caused by irrigation interruption at the early flowering stage. Agronomic water use efficiency was affected by varying irrigation levels in two out of three years. In 2012, the agronomic water use efficiency observed on fully irrigated cultivars was statistically higher than for other irrigation levels. These results can be important in supporting the development of water management strategies for irrigated cotton. MenosWater availability and plant water use efficiency are important issues facing cotton production in West Texas. Trials were conducted to compare the growth, gas exchange, yield, and quality of West Texas cultivars subjected to different levels and timings of water deficit. In the first experiment, cotton cultivars were subjected to consistent levels of irrigation, ranging from full irrigation to dryland after first square. In the second experiment, cultivars were exposed to episodic water deficit events during the season. The effects of irrigation treatments upon physiological parameters such as leaf photosynthesis, transpiration, and temperature, were measured, and agronomic water use efficiency was calculated for each treatment. An economic analysis was also performed to verify treatment profitability. Yield and most of the quality parameters presented were significantly affected by drought episode and cultivar selection. The data shows that in all years and locations the irrigation strategy with no irrigation interruption provided the best yields. Regarding episodic drought events, the highest reduction in yields was caused by irrigation interruption at the early flowering stage. Agronomic water use efficiency was affected by varying irrigation levels in two out of three years. In 2012, the agronomic water use efficiency observed on fully irrigated cultivars was statistically higher than for other irrigation levels. These results can be important in supporting the developm... Mostrar Tudo |
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Palavras-Chave: |
Cultivo do algodão; Cultura do algodão; Eficiência no uso da água; Irrigation timing; Manejo da irrigação; Produção do algodão; Rentabilidade agrícola. |
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Thesagro: |
Gossypium Hirsutum. |
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Thesaurus Nal: |
Farm profitability; Irrigation management; Irrigation scheduling; Water use efficiency. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02437nam a2200277 a 4500
001 2013198
005 2015-04-10
008 2013 bl uuuu m 00u1 u #d
100 1 $aSIMÃO, F. R.
245 $aThe effects of varying levels of deficit irrigation and episodic drought stress on West Texas cotton cultivars.
260 $a2013.$c2013
300 $a214 f.
500 $aDissertation (Doctor of Philosophy) - Texas Tech University, Texas.
520 $aWater availability and plant water use efficiency are important issues facing cotton production in West Texas. Trials were conducted to compare the growth, gas exchange, yield, and quality of West Texas cultivars subjected to different levels and timings of water deficit. In the first experiment, cotton cultivars were subjected to consistent levels of irrigation, ranging from full irrigation to dryland after first square. In the second experiment, cultivars were exposed to episodic water deficit events during the season. The effects of irrigation treatments upon physiological parameters such as leaf photosynthesis, transpiration, and temperature, were measured, and agronomic water use efficiency was calculated for each treatment. An economic analysis was also performed to verify treatment profitability. Yield and most of the quality parameters presented were significantly affected by drought episode and cultivar selection. The data shows that in all years and locations the irrigation strategy with no irrigation interruption provided the best yields. Regarding episodic drought events, the highest reduction in yields was caused by irrigation interruption at the early flowering stage. Agronomic water use efficiency was affected by varying irrigation levels in two out of three years. In 2012, the agronomic water use efficiency observed on fully irrigated cultivars was statistically higher than for other irrigation levels. These results can be important in supporting the development of water management strategies for irrigated cotton.
650 $aFarm profitability
650 $aIrrigation management
650 $aIrrigation scheduling
650 $aWater use efficiency
650 $aGossypium Hirsutum
653 $aCultivo do algodão
653 $aCultura do algodão
653 $aEficiência no uso da água
653 $aIrrigation timing
653 $aManejo da irrigação
653 $aProdução do algodão
653 $aRentabilidade agrícola
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Registro original: |
Embrapa Solos (CNPS) |
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Biblioteca(s): |
Embrapa Hortaliças. |
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Data corrente: |
09/02/2015 |
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Data da última atualização: |
09/02/2015 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SILVA, K. F. A.; EHRHARDT, M. V. S.; CARVALHO, P. B. V.; ESASHIKA, D. A. S.; GRAVINA, C. S.; BICCA, J. P.; MICHEREFF FILHO, M.; TORRES, J. B. |
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Afiliação: |
KARLA F. A. S. SILVA, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO, PROGRAMA DE PÓS GRADUAÇÃO EM ENTOMOLOGIA AGRÍCOLA, BOLSISTA EMBRAPA HORTALIÇAS; MARCUS V. S. EHRHARDT, BOLSISTA EMBRAPA HORTALIÇAS; PABLLO B. V. CARVALHO, BOLSISTA EMBRAPA HORTALIÇAS; DANILO A. S. ESASHIKA., BOLSISTA EMBRAPA HORTALIÇAS; CRITINA S. GRAVINA, BOLSISTA EMBRAPA HORTALIÇAS; JAQUELINNE P. BICCA, BOLSISTA EMBRAPA HORTALIÇAS; MIGUEL MICHEREFF FILHO, CNPH; JORGE B. TORRES, UNIVERSIDADE FEDERAL RURLA DE PERNAMBUCO, PROGRAMA DE PÓS GRADUAÇÃO EM ENTOMOLOGIA AGRICOLA. |
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Título: |
Preferência hospedeira de Helicoverpa armigera(Lepidoptera: Noctuidae) em diferentes culturas. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 25., 2014, Goiânia. Entomologia integrada à sociedade para o desenvolvimento sustentável: anais. Goiânia: Sociedade Entomológica do Brasil, 2014. |
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Idioma: |
Português |
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Notas: |
Resumo 0858. |
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Thesagro: |
Lagarta; Praga de planta; Quiabo; Soja; Tomate. |
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Thesaurus NAL: |
Helicoverpa armigera; Solanum lycopersicum. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/117545/1/resumo-0858.pdf
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Marc: |
LEADER 00953nam a2200277 a 4500
001 2008150
005 2015-02-09
008 2014 bl uuuu u00u1 u #d
100 1 $aSILVA, K. F. A.
245 $aPreferência hospedeira de Helicoverpa armigera(Lepidoptera$bNoctuidae) em diferentes culturas.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 25., 2014, Goiânia. Entomologia integrada à sociedade para o desenvolvimento sustentável: anais. Goiânia: Sociedade Entomológica do Brasil$c2014
500 $aResumo 0858.
650 $aHelicoverpa armigera
650 $aSolanum lycopersicum
650 $aLagarta
650 $aPraga de planta
650 $aQuiabo
650 $aSoja
650 $aTomate
700 1 $aEHRHARDT, M. V. S.
700 1 $aCARVALHO, P. B. V.
700 1 $aESASHIKA, D. A. S.
700 1 $aGRAVINA, C. S.
700 1 $aBICCA, J. P.
700 1 $aMICHEREFF FILHO, M.
700 1 $aTORRES, J. B.
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