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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
20/12/2017 |
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Data da última atualização: |
20/12/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ZONTA, J. H.; BRANDAO, Z. N.; RODRIGUES, J. I. da S.; SOFIATTI, V. |
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Afiliação: |
JOAO HENRIQUE ZONTA, CNPA; ZIANY NEIVA BRANDAO, CNPA; JOSIANE ISABELA DA SILVA RODRIGUES, CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO; VALDINEI SOFIATTI, CNPA. |
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Título: |
Cotton response to water deficits at different growth stages. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Revista Caatinga, Mossoró, v. 30, n. 4, p. 980-990, out./dez., 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
Water deficit at certain cotton growth stages can cause severe damage to crop development, affecting physiological processes and reducing reproductive structures, with consequent yield losses. The objective of this study was to evaluate the response of cotton cultivars under water deficit applied at different stages of the crop cycle. We compared the number of bolls per meter, cotton yield, and water use efficiency for eight different cotton cultivars under a water deficit of 15 days. We selected the following growth stages: Emergence (EM), First Square (FS), First Flower (FL), Peak Bloom (PB), and First Open Boll (FOB). The control treatment was irrigated with 100% ETc. The experiment was conducted in Apodi, RN State of Brazil, semiarid region, using a sprinkler irrigation system. The number of bolls per meter, cotton yield, and water use efficiency were influenced by the interaction of cultivars x deficit periods. Lowest values were observed for water suppression in the FL and PB stages. When the water deficit was imposed in the initial stages of growth (EM to FS) or after the FOB stage, the cotton yield reduction was not significant. At the same stage and water deficit, the behavior of the different cultivars was similar. Producers are urged to take this information into account when developing irrigation schemes for cotton crops, thereby avoiding water deficits during the most critical periods of the crop cycle. |
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Thesagro: |
Água; Algodão; Botão floral; Irrigação; Produtividade. |
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Thesaurus Nal: |
Cotton; Irrigation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/169436/1/Cotton-response-to....pdf
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Marc: |
LEADER 02099naa a2200241 a 4500
001 2083104
005 2017-12-20
008 2017 bl uuuu u00u1 u #d
100 1 $aZONTA, J. H.
245 $aCotton response to water deficits at different growth stages.$h[electronic resource]
260 $c2017
520 $aWater deficit at certain cotton growth stages can cause severe damage to crop development, affecting physiological processes and reducing reproductive structures, with consequent yield losses. The objective of this study was to evaluate the response of cotton cultivars under water deficit applied at different stages of the crop cycle. We compared the number of bolls per meter, cotton yield, and water use efficiency for eight different cotton cultivars under a water deficit of 15 days. We selected the following growth stages: Emergence (EM), First Square (FS), First Flower (FL), Peak Bloom (PB), and First Open Boll (FOB). The control treatment was irrigated with 100% ETc. The experiment was conducted in Apodi, RN State of Brazil, semiarid region, using a sprinkler irrigation system. The number of bolls per meter, cotton yield, and water use efficiency were influenced by the interaction of cultivars x deficit periods. Lowest values were observed for water suppression in the FL and PB stages. When the water deficit was imposed in the initial stages of growth (EM to FS) or after the FOB stage, the cotton yield reduction was not significant. At the same stage and water deficit, the behavior of the different cultivars was similar. Producers are urged to take this information into account when developing irrigation schemes for cotton crops, thereby avoiding water deficits during the most critical periods of the crop cycle.
650 $aCotton
650 $aIrrigation
650 $aÁgua
650 $aAlgodão
650 $aBotão floral
650 $aIrrigação
650 $aProdutividade
700 1 $aBRANDAO, Z. N.
700 1 $aRODRIGUES, J. I. da S.
700 1 $aSOFIATTI, V.
773 $tRevista Caatinga, Mossoró$gv. 30, n. 4, p. 980-990, out./dez., 2017.
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Registro original: |
Embrapa Algodão (CNPA) |
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