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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
24/01/1996 |
Data da última atualização: |
10/01/2023 |
Autoria: |
BASTOS, J. A. M. |
Título: |
Estudo estatistico da distribuicao cronologica das secas no Ceara. |
Ano de publicação: |
1960 |
Fonte/Imprenta: |
Boletim da Sociedade Cearense de Agronomia, Fortaleza, v.1, p.187-204, 1960. |
Idioma: |
Português |
Conteúdo: |
Estuda a distribuicao das secas atraves dos ciclos das manchas solares e periodos arbitrarios que variam de 9 a 12 anos apoiados em dados historicos e pluviometricos. Apresenta cinco tabelas contendo o numero de secas registradas, por ciclo das manchas solares por periodo arbitrarios de 9, 10, 11 e 12 anos. |
Palavras-Chave: |
Ceara; Recursos naturais. |
Thesagro: |
Clima; Estatística. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00784naa a2200169 a 4500 001 1126405 005 2023-01-10 008 1960 bl uuuu u00u1 u #d 100 1 $aBASTOS, J. A. M. 245 $aEstudo estatistico da distribuicao cronologica das secas no Ceara. 260 $c1960 520 $aEstuda a distribuicao das secas atraves dos ciclos das manchas solares e periodos arbitrarios que variam de 9 a 12 anos apoiados em dados historicos e pluviometricos. Apresenta cinco tabelas contendo o numero de secas registradas, por ciclo das manchas solares por periodo arbitrarios de 9, 10, 11 e 12 anos. 650 $aClima 650 $aEstatística 653 $aCeara 653 $aRecursos naturais 773 $tBoletim da Sociedade Cearense de Agronomia, Fortaleza$gv.1, p.187-204, 1960.
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Embrapa Semiárido (CPATSA) |
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Registro Completo
Biblioteca(s): |
Embrapa Clima Temperado. |
Data corrente: |
04/12/2018 |
Data da última atualização: |
20/12/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
BRUBNETTO, G.; TIECHER, T. L.; HAMMERSHMITT, R. K.; FACCO, D. B.; FERREIRA, P. A. A.; CONTI. L. de; SILVA, L. O. S.; MAYER, N. A.; ANTUNES, L. E. C.; CESCO, S.; MIMMO, T. |
Afiliação: |
G. Brunetto; T.L. Tiecher; R.K. Hammerschmitt; D.B. Facco; P.A.A. Ferreira; L. De Conti; L.O.S. Silva; NEWTON ALEX MAYER, CPACT; LUIS EDUARDO CORREA ANTUNES, CPACT; S. Cesco; T. Mimmo. |
Título: |
Peach rootstock tolerance to excess zinc in sandy acidic soil. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Acta Horticulturae, v. 1217, p. 75-82, 2018. |
Idioma: |
Inglês |
Notas: |
Publicado no ISHS Acta Horticulturae 1217: VIII International Symposium on Mineral Nutrition of Fruit Crops |
Conteúdo: |
In some areas dedicated to the cultivation of peach plants, soils are characterized by high levels of zinc (Zn) as a consequence of successive applications of Zn-containing fungicides and/or use of animal manure as fertilizer. In these cases, choosing an appropriate Zn-tolerant rootstock is essential to optimize orchard production. The current study evaluated the behavior of three peach rootstocks grown in a soil containing variable levels of Zn availability. Samples of a Typic Hapludalf soil were collected from a natural grassland in southern Brazil. The soil was dried and sieved. Subsamples of the soil were amended with increasing rates of Zn added as ZnSO4, incubated for 60 days, transferred to rhizoboxes, and planted with three types of peach rootstocks (Tsukuba-1, Rigitano and Flordaguard). The treatments were arranged in a completely randomized experimental design with three replications per rootstock X Zn dosage treatment. The rootstocks were grown for 65 days, at which time dry matter production of leaves, shoots and stem, as well as increase in height and stem diameter at ground level, were measured. Total concentrations of Zn, Fe, N, P, Ca and Mg were analyzed in each organ. The photosynthetic pigments and catalase (CAT) activity were analyzed in the leaves. Concentrations of Zn increased linearly in all the organs of all the rootstocks; however, the Tsukuba-1 rootstock presented greater sensitivity to high levels of Zn availability in soil, with a reduction in leaf dry matter production, chlorophyll a and carotenoid concentrations, and CAT activity. The Flordaguard rootstock showed an increase in height with increasing Zn concentration applied to the soil. Development of the Rigitano rootstock plants was unaffected by Zn amendment. MenosIn some areas dedicated to the cultivation of peach plants, soils are characterized by high levels of zinc (Zn) as a consequence of successive applications of Zn-containing fungicides and/or use of animal manure as fertilizer. In these cases, choosing an appropriate Zn-tolerant rootstock is essential to optimize orchard production. The current study evaluated the behavior of three peach rootstocks grown in a soil containing variable levels of Zn availability. Samples of a Typic Hapludalf soil were collected from a natural grassland in southern Brazil. The soil was dried and sieved. Subsamples of the soil were amended with increasing rates of Zn added as ZnSO4, incubated for 60 days, transferred to rhizoboxes, and planted with three types of peach rootstocks (Tsukuba-1, Rigitano and Flordaguard). The treatments were arranged in a completely randomized experimental design with three replications per rootstock X Zn dosage treatment. The rootstocks were grown for 65 days, at which time dry matter production of leaves, shoots and stem, as well as increase in height and stem diameter at ground level, were measured. Total concentrations of Zn, Fe, N, P, Ca and Mg were analyzed in each organ. The photosynthetic pigments and catalase (CAT) activity were analyzed in the leaves. Concentrations of Zn increased linearly in all the organs of all the rootstocks; however, the Tsukuba-1 rootstock presented greater sensitivity to high levels of Zn availability in soil, with a reduction in lea... Mostrar Tudo |
Palavras-Chave: |
Acidic soils; Foliar fungicides; Photosynthetic pigments. |
Thesagro: |
Pêssego; Porta Enxerto. |
Thesaurus NAL: |
Heavy metals; Phytotoxicity. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02751nam a2200325 a 4500 001 2100648 005 2019-12-20 008 2018 bl uuuu u00u1 u #d 100 1 $aBRUBNETTO, G. 245 $aPeach rootstock tolerance to excess zinc in sandy acidic soil.$h[electronic resource] 260 $aActa Horticulturae, v. 1217, p. 75-82$c2018 500 $aPublicado no ISHS Acta Horticulturae 1217: VIII International Symposium on Mineral Nutrition of Fruit Crops 520 $aIn some areas dedicated to the cultivation of peach plants, soils are characterized by high levels of zinc (Zn) as a consequence of successive applications of Zn-containing fungicides and/or use of animal manure as fertilizer. In these cases, choosing an appropriate Zn-tolerant rootstock is essential to optimize orchard production. The current study evaluated the behavior of three peach rootstocks grown in a soil containing variable levels of Zn availability. Samples of a Typic Hapludalf soil were collected from a natural grassland in southern Brazil. The soil was dried and sieved. Subsamples of the soil were amended with increasing rates of Zn added as ZnSO4, incubated for 60 days, transferred to rhizoboxes, and planted with three types of peach rootstocks (Tsukuba-1, Rigitano and Flordaguard). The treatments were arranged in a completely randomized experimental design with three replications per rootstock X Zn dosage treatment. The rootstocks were grown for 65 days, at which time dry matter production of leaves, shoots and stem, as well as increase in height and stem diameter at ground level, were measured. Total concentrations of Zn, Fe, N, P, Ca and Mg were analyzed in each organ. The photosynthetic pigments and catalase (CAT) activity were analyzed in the leaves. Concentrations of Zn increased linearly in all the organs of all the rootstocks; however, the Tsukuba-1 rootstock presented greater sensitivity to high levels of Zn availability in soil, with a reduction in leaf dry matter production, chlorophyll a and carotenoid concentrations, and CAT activity. The Flordaguard rootstock showed an increase in height with increasing Zn concentration applied to the soil. Development of the Rigitano rootstock plants was unaffected by Zn amendment. 650 $aHeavy metals 650 $aPhytotoxicity 650 $aPêssego 650 $aPorta Enxerto 653 $aAcidic soils 653 $aFoliar fungicides 653 $aPhotosynthetic pigments 700 1 $aTIECHER, T. L. 700 1 $aHAMMERSHMITT, R. K. 700 1 $aFACCO, D. B. 700 1 $aFERREIRA, P. A. A. 700 1 $aCONTI. L. de 700 1 $aSILVA, L. O. S. 700 1 $aMAYER, N. A. 700 1 $aANTUNES, L. E. C. 700 1 $aCESCO, S. 700 1 $aMIMMO, T.
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