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Biblioteca(s): |
Embrapa Algodão. |
Data corrente: |
03/01/2018 |
Data da última atualização: |
03/01/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
COSTA, J. C. F. da; SILVA, D. J. da; SOUTO, A. G. de L.; SOFIATTI, V.; ROSADO, L. D. S.; LIMA NETO, A. J. de; SANTOS, C. E. M. dos. |
Afiliação: |
JUSSARA CRISTINA FIRMINO da COSTA, UFV; DEMETRIUS JOSÉ da SILVA, UFPB; ANTÔNIO GUSTAVO de LUNA SOUTO, UFV; VALDINEI SOFIATTI, CNPA; LUCIANA DOMICIANO SILVA ROSADO, UFV; ANTONIO JOÃO de LIMA NETO, UFV; CARLOS EDUARDO MAGALHÃES dos SANTOS, UFV. |
Título: |
Physiological aspects in cotton cultivars in response to application leaf gibberellic acid. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
African Journal of Agricultural Research, v.12, n. 4, p. 270-278, Jan. 2017. |
ISSN: |
1991-637X |
DOI: |
10.5897/AJAR2016.11663 |
Idioma: |
Inglês |
Conteúdo: |
The cotton plant is a species of the Malvaceae family and is relevant to the Brazilian and world economy, mainly because of the textile fiber. However, there was an increase in cotton production because it is necessary for the use of inputs or stimulants, such as the use of gibberellic acid, which has contributed in improving the physiological processes of plants. The study aimed to evaluate the effects of gibberellic acid doses and foliar application on the physiological aspects of different cotton cultivars. The experiment was conducted under field conditions in 5 × 3 factorial scheme, corresponding to five doses of gibberellic acid (0, 0.01, 0.02, 0.04 and 0.06 mg L-1) and three cultivars upland cotton (BRS 8H, BRS Rubi and BRS Safira) in the design of randomized blocks, three replications and 25 plants per plot. The photosynthetic pigments, which are represented by the contents of chlorophyll a and b, total, carotenoid and relative water content in the sheet were determined. In BRS 8H the chlorophyll levels were high, 287.914 ?mol m-2 to 468.796 ?mol m-2 being the treatments without and sprayed with 0.06 mg L-1 GA3, with 62.82% increase. The application of 0.06 mg L-1 GA3 generally promotes increased levels of photosynthetic pigments and relative water content in cotton leaves. The cotton BRS 8H was the culture that best meets the application of gibberellic acid. |
Palavras-Chave: |
Pigmentos fotossintéticos. |
Thesagro: |
Ácido giberélico; Algodão; Carotenóide; Clorofila; Gossypium hirsutum. |
Thesaurus NAL: |
Carotenoids; Chlorophyll; Cotton; Gibberellic acid; Pigments. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/170248/1/Physiological-aspects-....pdf
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Marc: |
LEADER 02411naa a2200349 a 4500 001 2084140 005 2018-01-03 008 2017 bl uuuu u00u1 u #d 022 $a1991-637X 024 7 $a10.5897/AJAR2016.11663$2DOI 100 1 $aCOSTA, J. C. F. da 245 $aPhysiological aspects in cotton cultivars in response to application leaf gibberellic acid.$h[electronic resource] 260 $c2017 520 $aThe cotton plant is a species of the Malvaceae family and is relevant to the Brazilian and world economy, mainly because of the textile fiber. However, there was an increase in cotton production because it is necessary for the use of inputs or stimulants, such as the use of gibberellic acid, which has contributed in improving the physiological processes of plants. The study aimed to evaluate the effects of gibberellic acid doses and foliar application on the physiological aspects of different cotton cultivars. The experiment was conducted under field conditions in 5 × 3 factorial scheme, corresponding to five doses of gibberellic acid (0, 0.01, 0.02, 0.04 and 0.06 mg L-1) and three cultivars upland cotton (BRS 8H, BRS Rubi and BRS Safira) in the design of randomized blocks, three replications and 25 plants per plot. The photosynthetic pigments, which are represented by the contents of chlorophyll a and b, total, carotenoid and relative water content in the sheet were determined. In BRS 8H the chlorophyll levels were high, 287.914 ?mol m-2 to 468.796 ?mol m-2 being the treatments without and sprayed with 0.06 mg L-1 GA3, with 62.82% increase. The application of 0.06 mg L-1 GA3 generally promotes increased levels of photosynthetic pigments and relative water content in cotton leaves. The cotton BRS 8H was the culture that best meets the application of gibberellic acid. 650 $aCarotenoids 650 $aChlorophyll 650 $aCotton 650 $aGibberellic acid 650 $aPigments 650 $aÁcido giberélico 650 $aAlgodão 650 $aCarotenóide 650 $aClorofila 650 $aGossypium hirsutum 653 $aPigmentos fotossintéticos 700 1 $aSILVA, D. J. da 700 1 $aSOUTO, A. G. de L. 700 1 $aSOFIATTI, V. 700 1 $aROSADO, L. D. S. 700 1 $aLIMA NETO, A. J. de 700 1 $aSANTOS, C. E. M. dos 773 $tAfrican Journal of Agricultural Research$gv.12, n. 4, p. 270-278, Jan. 2017.
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Embrapa Algodão (CNPA) |
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