| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Uva e Vinho. |
|
Data corrente: |
27/12/2019 |
|
Data da última atualização: |
27/12/2019 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
ESPERANÇA, C. de F.; PETRI, J. L.; RUFATO, A. de R.; COUTO, M.; SEZERINO, A. A.; GABARDO, G. C. |
|
Afiliação: |
Caroline de Fátima Esperança, Agroveterinary Sciences Center, Santa Catarina State University, Lages, SC, Brazil; José Luiz Petri, EPAGRI/Caçador Experimental Station, Caçador, SC, Brazil; ANDREA DE ROSSI RUFATO, CNPUV; Marcelo Couto, EPAGRI/Caçador Experimental Station, Caçador, SC, Brazil. 3 Embrapa Grape and Wine, Experimental Temperate Season Fruit Production Station (EFCT); André Amarildo Sezerino, EPAGRI/Caçador Experimental Station, Caçador, SC, Brazil; Gentil Carneiro Gabardo, Agroveterinary Sciences Center, Santa Catarina State University, Lages, SC, Brazil. |
|
Título: |
Induction of senescence and foliar abscission in apple trees with the use of abscisic acid. |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
Journal of Experimental Agriculture International, v. 35, n. 5, p. 1-10, 2019 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Aims: Evaluate the effects of different concentrations of abscisic acid (ABA) on adult plants of productive age of ?Daiane? and ?Fuji Suprema?, to follow the ecophysiological effects and their efficiency in inducing leaf senescence, sprouting and productivity, in the Midwestern region of the state of Santa Catarina. Study Design: The experiment was arranged in a randomized block design with six replications. Place and Duration of Study: The experiment was carried out in the municipality of Caçador, Brazil (latitude 26º50?07? S, longitude 50º58?32? W, altitude 969 meters), during the growing seasons of 2013/2014 and 2014/2015. Methodology: The apple fruit tree were submitted to the following treatments: 1) Control (without treatment), 2) abscisic acid 750 mg L-1 , 3) abscisic acid 750 + 750 mg L-1 , 4) abscisic acid 1500 mg L-1 and 5) abscisic acid 1500 + 1500 mg L-1 . ABA applications in the first year were carried out on May 2, 2013 in treatments 2, 3, 4, and 5, and after 11 days (05/13/13) the plants of treatments 3 and 5 were sprayed again. In the second year, ABA applications were carried out on May 6 and 15, 2014, following the same application methodology described for the first year. As the source of abscisic acid (ABA) the commercial product ProTone® (20% i.a.) was used, without the use of adjuvant. The exogenous application of ABA was effective in promoting the senescence and leaf fall of the ?Daiane? and ?Fuji Suprema? cultivars. In the 2013/2014 season, the concentration of 750 mg L-1 was enough to induce 100% leaf fall in 'Daiane' plants. However, a difference was observed between the concentrations of ABA used. There was a difference between concentrations and number of applications. Lower concentrations were efficient and deflated as much as the higher concentration. The application of ABA induces the abscission of apple leaves in early autumn in 'Daiane' and 'Fuji Suprema' apple plants. The ABA does not affect shoots of axillary buds and anticipates the beginning of shoots. MenosAims: Evaluate the effects of different concentrations of abscisic acid (ABA) on adult plants of productive age of ?Daiane? and ?Fuji Suprema?, to follow the ecophysiological effects and their efficiency in inducing leaf senescence, sprouting and productivity, in the Midwestern region of the state of Santa Catarina. Study Design: The experiment was arranged in a randomized block design with six replications. Place and Duration of Study: The experiment was carried out in the municipality of Caçador, Brazil (latitude 26º50?07? S, longitude 50º58?32? W, altitude 969 meters), during the growing seasons of 2013/2014 and 2014/2015. Methodology: The apple fruit tree were submitted to the following treatments: 1) Control (without treatment), 2) abscisic acid 750 mg L-1 , 3) abscisic acid 750 + 750 mg L-1 , 4) abscisic acid 1500 mg L-1 and 5) abscisic acid 1500 + 1500 mg L-1 . ABA applications in the first year were carried out on May 2, 2013 in treatments 2, 3, 4, and 5, and after 11 days (05/13/13) the plants of treatments 3 and 5 were sprayed again. In the second year, ABA applications were carried out on May 6 and 15, 2014, following the same application methodology described for the first year. As the source of abscisic acid (ABA) the commercial product ProTone® (20% i.a.) was used, without the use of adjuvant. The exogenous application of ABA was effective in promoting the senescence and leaf fall of the ?Daiane? and ?Fuji Suprema? cultivars. In the 2013/2014 season, the concen... Mostrar Tudo |
|
Palavras-Chave: |
Malus domestica Borkh. |
|
Thesaurus Nal: |
Dormancy; Leaf abscission. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/207886/1/DERossi-2019.pdf
|
|
Marc: |
LEADER 02695naa a2200217 a 4500
001 2117780
005 2019-12-27
008 2019 bl uuuu u00u1 u #d
100 1 $aESPERANÇA, C. de F.
245 $aInduction of senescence and foliar abscission in apple trees with the use of abscisic acid.$h[electronic resource]
260 $c2019
520 $aAims: Evaluate the effects of different concentrations of abscisic acid (ABA) on adult plants of productive age of ?Daiane? and ?Fuji Suprema?, to follow the ecophysiological effects and their efficiency in inducing leaf senescence, sprouting and productivity, in the Midwestern region of the state of Santa Catarina. Study Design: The experiment was arranged in a randomized block design with six replications. Place and Duration of Study: The experiment was carried out in the municipality of Caçador, Brazil (latitude 26º50?07? S, longitude 50º58?32? W, altitude 969 meters), during the growing seasons of 2013/2014 and 2014/2015. Methodology: The apple fruit tree were submitted to the following treatments: 1) Control (without treatment), 2) abscisic acid 750 mg L-1 , 3) abscisic acid 750 + 750 mg L-1 , 4) abscisic acid 1500 mg L-1 and 5) abscisic acid 1500 + 1500 mg L-1 . ABA applications in the first year were carried out on May 2, 2013 in treatments 2, 3, 4, and 5, and after 11 days (05/13/13) the plants of treatments 3 and 5 were sprayed again. In the second year, ABA applications were carried out on May 6 and 15, 2014, following the same application methodology described for the first year. As the source of abscisic acid (ABA) the commercial product ProTone® (20% i.a.) was used, without the use of adjuvant. The exogenous application of ABA was effective in promoting the senescence and leaf fall of the ?Daiane? and ?Fuji Suprema? cultivars. In the 2013/2014 season, the concentration of 750 mg L-1 was enough to induce 100% leaf fall in 'Daiane' plants. However, a difference was observed between the concentrations of ABA used. There was a difference between concentrations and number of applications. Lower concentrations were efficient and deflated as much as the higher concentration. The application of ABA induces the abscission of apple leaves in early autumn in 'Daiane' and 'Fuji Suprema' apple plants. The ABA does not affect shoots of axillary buds and anticipates the beginning of shoots.
650 $aDormancy
650 $aLeaf abscission
653 $aMalus domestica Borkh
700 1 $aPETRI, J. L.
700 1 $aRUFATO, A. de R.
700 1 $aCOUTO, M.
700 1 $aSEZERINO, A. A.
700 1 $aGABARDO, G. C.
773 $tJournal of Experimental Agriculture International$gv. 35, n. 5, p. 1-10, 2019
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Uva e Vinho (CNPUV) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Milho e Sorgo. |
|
Data corrente: |
12/01/1994 |
|
Data da última atualização: |
19/10/2023 |
|
Autoria: |
ANDRADE, R. V. de. |
|
Afiliação: |
RAMIRO VILELA DE ANDRADE, EMBRAPA-CNPMS. |
|
Título: |
Evaluation of firm seed in Pensacola bahiagrass (Paspalum notatum Flugge) and browntop millet (Panicum ramosum L.). |
|
Ano de publicação: |
1977 |
|
Fonte/Imprenta: |
1977. |
|
Páginas: |
43 f. |
|
Idioma: |
Inglês |
|
Notas: |
Dissertação (Mestrado) - Mississippi State University, Mississippi State. |
|
Conteúdo: |
Seeds of Pensacola bahiagrass, (Paspalum notatum Flugge) and browntop millet (Panicum ramosum L.) are dormant after harvest and dormancy often persist for several months, or in some cases for a few years. The dormancy of these grasses is characterized by gaseous impermeability and recognized as firm seed. The general objectives of this study were: (1) to determine the effectiveness and convenience of acid scarification for overcomirg seed dormancy in Pensacola bahiagrass and browntop millet, and (2) to evaluate the planting value of firm seed in these crops. The experiment was conducted in both the laboratory and the field. Ten lots each of bahiagrass and browntop millet seed were evaluated by the standard germination test and by a 20-minute acid scarification treatment. Bahiagrass seed lots showed an average increase of 17.4% in germination in the laboratory after acid scarification. However, non-treated seed germinated, on the average, higher than acid-scarified seed 38 days after planting. A 20-minute acid scarification treatment almost overcame dormancy in bahiagrass. At the end of the 28-day germination test period, firm seeds were subjected to the tetrazolium test. Results showed that not all seeds were viable. Total viability of the seeds was not affected by the acid scarification treatment but the number of abnormal seedlings increased. The acid scarification method shortened the time required for germination by about nine days. The 20-minute sulfuric acid treatment in browntop millet gave no improvement in the germination percentage. Browntop millet seeds, when treated with sulfuric acid, were more susceptible to fungal attack and as a consequence, there was an increase in the number of abnormal seedlings. The number of abnormal seedlings and degree of fungal attack were closely related to the time of sulfuric acid treatment; as the time increased, abnormality increased. Based on the results of this study, there appears to be no immediate planting value in the firm seeds of Pensacola bahiagrass or browntop millet. MenosSeeds of Pensacola bahiagrass, (Paspalum notatum Flugge) and browntop millet (Panicum ramosum L.) are dormant after harvest and dormancy often persist for several months, or in some cases for a few years. The dormancy of these grasses is characterized by gaseous impermeability and recognized as firm seed. The general objectives of this study were: (1) to determine the effectiveness and convenience of acid scarification for overcomirg seed dormancy in Pensacola bahiagrass and browntop millet, and (2) to evaluate the planting value of firm seed in these crops. The experiment was conducted in both the laboratory and the field. Ten lots each of bahiagrass and browntop millet seed were evaluated by the standard germination test and by a 20-minute acid scarification treatment. Bahiagrass seed lots showed an average increase of 17.4% in germination in the laboratory after acid scarification. However, non-treated seed germinated, on the average, higher than acid-scarified seed 38 days after planting. A 20-minute acid scarification treatment almost overcame dormancy in bahiagrass. At the end of the 28-day germination test period, firm seeds were subjected to the tetrazolium test. Results showed that not all seeds were viable. Total viability of the seeds was not affected by the acid scarification treatment but the number of abnormal seedlings increased. The acid scarification method shortened the time required for germination by about nine days. The 20-minute sulfuric acid treatment ... Mostrar Tudo |
|
Palavras-Chave: |
Forage graminea; Forage grass; Panicum ramosum; Paspalum matatum; Quebra; Sementes; Sulphuric acid. |
|
Thesagro: |
Ácido Sulfúrico; Dormência; Grama Batatais; Gramínea Forrageira; Milheto; Paspalum Notatum; Semente. |
|
Thesaurus NAL: |
dormancy; seeds. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/89884/1/Ramiro-Andrade.pdf
|
|
Marc: |
LEADER 02967nam a2200325 a 4500
001 1489258
005 2023-10-19
008 1977 bl uuuu m 00u1 u #d
100 1 $aANDRADE, R. V. de
245 $aEvaluation of firm seed in Pensacola bahiagrass (Paspalum notatum Flugge) and browntop millet (Panicum ramosum L.).
260 $a1977.$c1977
300 $a43 f.
500 $aDissertação (Mestrado) - Mississippi State University, Mississippi State.
520 $aSeeds of Pensacola bahiagrass, (Paspalum notatum Flugge) and browntop millet (Panicum ramosum L.) are dormant after harvest and dormancy often persist for several months, or in some cases for a few years. The dormancy of these grasses is characterized by gaseous impermeability and recognized as firm seed. The general objectives of this study were: (1) to determine the effectiveness and convenience of acid scarification for overcomirg seed dormancy in Pensacola bahiagrass and browntop millet, and (2) to evaluate the planting value of firm seed in these crops. The experiment was conducted in both the laboratory and the field. Ten lots each of bahiagrass and browntop millet seed were evaluated by the standard germination test and by a 20-minute acid scarification treatment. Bahiagrass seed lots showed an average increase of 17.4% in germination in the laboratory after acid scarification. However, non-treated seed germinated, on the average, higher than acid-scarified seed 38 days after planting. A 20-minute acid scarification treatment almost overcame dormancy in bahiagrass. At the end of the 28-day germination test period, firm seeds were subjected to the tetrazolium test. Results showed that not all seeds were viable. Total viability of the seeds was not affected by the acid scarification treatment but the number of abnormal seedlings increased. The acid scarification method shortened the time required for germination by about nine days. The 20-minute sulfuric acid treatment in browntop millet gave no improvement in the germination percentage. Browntop millet seeds, when treated with sulfuric acid, were more susceptible to fungal attack and as a consequence, there was an increase in the number of abnormal seedlings. The number of abnormal seedlings and degree of fungal attack were closely related to the time of sulfuric acid treatment; as the time increased, abnormality increased. Based on the results of this study, there appears to be no immediate planting value in the firm seeds of Pensacola bahiagrass or browntop millet.
650 $adormancy
650 $aseeds
650 $aÁcido Sulfúrico
650 $aDormência
650 $aGrama Batatais
650 $aGramínea Forrageira
650 $aMilheto
650 $aPaspalum Notatum
650 $aSemente
653 $aForage graminea
653 $aForage grass
653 $aPanicum ramosum
653 $aPaspalum matatum
653 $aQuebra
653 $aSementes
653 $aSulphuric acid
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
