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Registro Completo |
Biblioteca(s): |
Embrapa Amapá. |
Data corrente: |
10/07/2008 |
Data da última atualização: |
06/03/2013 |
Autoria: |
GOES, A.; BARROS, J. C. S. M. |
Afiliação: |
PESAGRO-RIO. |
Título: |
Comportamento de bananeiras do grupo prata em relação ao mal-de-sigatoka. |
Ano de publicação: |
1980 |
Fonte/Imprenta: |
Rio de Janeiro: PESAGRO-RIO, 1980. |
Páginas: |
2 p. |
Série: |
(PESAGRO-RIO. Comunicado técnico, 118). |
Idioma: |
Português |
Conteúdo: |
O mal- de singatoka, tambem conhecido por cercosporiose e mal das folhas, e uma enfermidade ocasionada pelo fungo Mycsphaerella Leach, cor respondendo, na sua fase imperfeita, a Cecospara musae Zimm. Sua presenca hoje e jeneralizada em todos os bananais instalados em areas cujas condicoes ecologicas sao favoraveis ao desenvolvimento do cacho. Os sintomas caracterizam-se, inicialmente, pela presenca de pontuacoes descoloridas, que evoluem a manchas lineares alongadas de coloracao amarelo-palida, disposta paralelamente ao eixo maior das folhas simetricamente sobre os limbos foliares. |
Palavras-Chave: |
Mal de Sigatoka. |
Thesagro: |
Banana; Doença. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01087nam a2200181 a 4500 001 1352001 005 2013-03-06 008 1980 bl uuuu u0uu1 u #d 100 1 $aGOES, A. 245 $aComportamento de bananeiras do grupo prata em relação ao mal-de-sigatoka. 260 $aRio de Janeiro: PESAGRO-RIO$c1980 300 $a2 p. 490 $a(PESAGRO-RIO. Comunicado técnico, 118). 520 $aO mal- de singatoka, tambem conhecido por cercosporiose e mal das folhas, e uma enfermidade ocasionada pelo fungo Mycsphaerella Leach, cor respondendo, na sua fase imperfeita, a Cecospara musae Zimm. Sua presenca hoje e jeneralizada em todos os bananais instalados em areas cujas condicoes ecologicas sao favoraveis ao desenvolvimento do cacho. Os sintomas caracterizam-se, inicialmente, pela presenca de pontuacoes descoloridas, que evoluem a manchas lineares alongadas de coloracao amarelo-palida, disposta paralelamente ao eixo maior das folhas simetricamente sobre os limbos foliares. 650 $aBanana 650 $aDoença 653 $aMal de Sigatoka 700 1 $aBARROS, J. C. S. M.
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Embrapa Amapá (CPAF-AP) |
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Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
20/01/2020 |
Data da última atualização: |
15/10/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
SIMOES, W. L.; COELHO, D. S.; MESQUITA, A. C.; CALGARO, M.; SILVA, J. S. |
Afiliação: |
WELSON LIMA SIMOES, CPATSA; DANIELA SIQUEIRA COELHO; ALESSANDRO CARLOS MESQUITA; MARCELO CALGARO, CPATSA; JUCICLÉIA SOARES DA SILVA. |
Título: |
Physiological and biochemical responses of sugarcane varieties to salt stress. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Revista Caatinga, v. 32, n. 4, p. 1069?1076, 2019. |
ISSN: |
1983-2125 |
DOI: |
10.1590/1983-21252019v32n423rc |
Idioma: |
Inglês |
Conteúdo: |
Salt stress is one of the most limiting environmental factors for agricultural yields in the Semiarid region of Brazil. Considering the expansion of areas with sugarcane crops in this region, the selection of more adapted plant varieties to this environment is an essential tool for the sustainability of this activity. Thus, the objective of the present work was to evaluate the physiological and biochemical responses of plants of ten sugarcane varieties to salt stress. The experiment was conducted in a greenhouse using a randomized block design, in a 6×10 factorial arrangement consisting of six salinity levels in the irrigation water (0, 1.0, 2.0, 4.0, 6.0, and 8.0 dS m-1) and ten sugarcane varieties (VAT 90212, RB 72454, RB 867515, Q 124, RB 961003, RB 957508, SP 791011, RB 835089, RB 92579, and SP 943206), with three replications. Salt waters were applied every two days to increase the soil moisture to field capacity and promote leaching. The gas exchange, chlorophyll content, and total soluble and reducing sugars of leaves were evaluated at 90 days after planting. The highest chlorophyll contents were found in plants of the varieties Q 124, RB 96103, RB 835089, and SP 943206. The effect of salinity on the sugarcane plants affected their leaf gas exchanges and total soluble and reducing sugar contents, denoting the adaptability of plants to the stress conditions evaluated. The decrease of stomatal conductance resulted in decreases in photosynthetic rates in plants of all sugarcane varieties evaluated, except for RB 867515 MenosSalt stress is one of the most limiting environmental factors for agricultural yields in the Semiarid region of Brazil. Considering the expansion of areas with sugarcane crops in this region, the selection of more adapted plant varieties to this environment is an essential tool for the sustainability of this activity. Thus, the objective of the present work was to evaluate the physiological and biochemical responses of plants of ten sugarcane varieties to salt stress. The experiment was conducted in a greenhouse using a randomized block design, in a 6×10 factorial arrangement consisting of six salinity levels in the irrigation water (0, 1.0, 2.0, 4.0, 6.0, and 8.0 dS m-1) and ten sugarcane varieties (VAT 90212, RB 72454, RB 867515, Q 124, RB 961003, RB 957508, SP 791011, RB 835089, RB 92579, and SP 943206), with three replications. Salt waters were applied every two days to increase the soil moisture to field capacity and promote leaching. The gas exchange, chlorophyll content, and total soluble and reducing sugars of leaves were evaluated at 90 days after planting. The highest chlorophyll contents were found in plants of the varieties Q 124, RB 96103, RB 835089, and SP 943206. The effect of salinity on the sugarcane plants affected their leaf gas exchanges and total soluble and reducing sugar contents, denoting the adaptability of plants to the stress conditions evaluated. The decrease of stomatal conductance resulted in decreases in photosynthetic rates in plants of all su... Mostrar Tudo |
Palavras-Chave: |
Estresse salino; Trocas gasosas. |
Thesagro: |
Cana de Açúcar; Carboidrato; Saccharum Officinarum; Salinidade. |
Thesaurus NAL: |
Sugarcane. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/209121/1/PHYSIOLOGICAL-AND-BIOCHEMICAL-RESPONSES-2019.pdf
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Marc: |
LEADER 02336naa a2200277 a 4500 001 2118998 005 2020-10-15 008 2019 bl uuuu u00u1 u #d 022 $a1983-2125 024 7 $a10.1590/1983-21252019v32n423rc$2DOI 100 1 $aSIMOES, W. L. 245 $aPhysiological and biochemical responses of sugarcane varieties to salt stress.$h[electronic resource] 260 $c2019 520 $aSalt stress is one of the most limiting environmental factors for agricultural yields in the Semiarid region of Brazil. Considering the expansion of areas with sugarcane crops in this region, the selection of more adapted plant varieties to this environment is an essential tool for the sustainability of this activity. Thus, the objective of the present work was to evaluate the physiological and biochemical responses of plants of ten sugarcane varieties to salt stress. The experiment was conducted in a greenhouse using a randomized block design, in a 6×10 factorial arrangement consisting of six salinity levels in the irrigation water (0, 1.0, 2.0, 4.0, 6.0, and 8.0 dS m-1) and ten sugarcane varieties (VAT 90212, RB 72454, RB 867515, Q 124, RB 961003, RB 957508, SP 791011, RB 835089, RB 92579, and SP 943206), with three replications. Salt waters were applied every two days to increase the soil moisture to field capacity and promote leaching. The gas exchange, chlorophyll content, and total soluble and reducing sugars of leaves were evaluated at 90 days after planting. The highest chlorophyll contents were found in plants of the varieties Q 124, RB 96103, RB 835089, and SP 943206. The effect of salinity on the sugarcane plants affected their leaf gas exchanges and total soluble and reducing sugar contents, denoting the adaptability of plants to the stress conditions evaluated. The decrease of stomatal conductance resulted in decreases in photosynthetic rates in plants of all sugarcane varieties evaluated, except for RB 867515 650 $aSugarcane 650 $aCana de Açúcar 650 $aCarboidrato 650 $aSaccharum Officinarum 650 $aSalinidade 653 $aEstresse salino 653 $aTrocas gasosas 700 1 $aCOELHO, D. S. 700 1 $aMESQUITA, A. C. 700 1 $aCALGARO, M. 700 1 $aSILVA, J. S. 773 $tRevista Caatinga$gv. 32, n. 4, p. 1069?1076, 2019.
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