Chilling requirement for seed germination and phenological observations on peach cultivars
In subtropical climate areas, the models and methods proposed to evaluate the chilling requirement of temperate fruit crops often do not provide satisfactory results, thus calling for the development of alternative techniques. The aim of this study was to evaluate the correlations between some phono...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal De Viçosa
2013-04-01
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| Series: | Revista Ceres |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2013000200012&lng=en&tlng=en |
| _version_ | 1819152360713224192 |
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| author | Américo Wagner Júnior Claudio Horst Bruckner José Osmar da Costa Silva Carlos Eduardo Magalhães dos Santos Leonardo Duarte Pimentel Sérgio Miguel Mazaro |
| author_facet | Américo Wagner Júnior Claudio Horst Bruckner José Osmar da Costa Silva Carlos Eduardo Magalhães dos Santos Leonardo Duarte Pimentel Sérgio Miguel Mazaro |
| author_sort | Américo Wagner Júnior |
| collection | DOAJ |
| description | In subtropical climate areas, the models and methods proposed to evaluate the chilling requirement of temperate fruit crops often do not provide satisfactory results, thus calling for the development of alternative techniques. The aim of this study was to evaluate the correlations between some phonological traits and chilling requirement for seed germination of 18 peach cultivars and one nectarine cultivar. Two experiments were installed separately for the correlation studies. In experiment 1, the phenological traits were observed in the field, while in experiment 2, the chilling requirement for 50 and 100% seed germination of each cultivar was assessed. The number of days for beginning of bloom (r = 0.70**, 0.61**) and full bloom (r = 0.72**, 0.76**) were both significantly correlated with the number of chilling units for 50% and 100% germination of seeds. The number of days for beginning of budding and dormancy break were both significantly correlated with the number of chilling units for 50% and 100% germination (r = 0.48*, 0.50*, respectively). However, the same significant effect for these phenological traits was not found between chilling units and 50% germination of seeds, as well as between chilling units and harvest dates. |
| first_indexed | 2024-12-22T14:48:04Z |
| format | Article |
| id | doaj.art-edc4a4178d69498c94d8fe040bc2d7ee |
| institution | Directory Open Access Journal |
| issn | 2177-3491 |
| language | English |
| last_indexed | 2024-12-22T14:48:04Z |
| publishDate | 2013-04-01 |
| publisher | Universidade Federal De Viçosa |
| record_format | Article |
| series | Revista Ceres |
| spelling | doaj.art-edc4a4178d69498c94d8fe040bc2d7ee2022-12-21T18:22:24ZengUniversidade Federal De ViçosaRevista Ceres2177-34912013-04-0160223424110.1590/S0034-737X2013000200012S0034-737X2013000200012Chilling requirement for seed germination and phenological observations on peach cultivarsAmérico Wagner Júnior0Claudio Horst Bruckner1José Osmar da Costa Silva2Carlos Eduardo Magalhães dos Santos3Leonardo Duarte Pimentel4Sérgio Miguel Mazaro5Universidade Tecnológica Federal do ParanáUniversidade Federal de ViçosaUniversidade Federal de ViçosaUniversidade Federal de ViçosaUniversidade Federal de ViçosaUniversidade Tecnológica Federal do ParanáIn subtropical climate areas, the models and methods proposed to evaluate the chilling requirement of temperate fruit crops often do not provide satisfactory results, thus calling for the development of alternative techniques. The aim of this study was to evaluate the correlations between some phonological traits and chilling requirement for seed germination of 18 peach cultivars and one nectarine cultivar. Two experiments were installed separately for the correlation studies. In experiment 1, the phenological traits were observed in the field, while in experiment 2, the chilling requirement for 50 and 100% seed germination of each cultivar was assessed. The number of days for beginning of bloom (r = 0.70**, 0.61**) and full bloom (r = 0.72**, 0.76**) were both significantly correlated with the number of chilling units for 50% and 100% germination of seeds. The number of days for beginning of budding and dormancy break were both significantly correlated with the number of chilling units for 50% and 100% germination (r = 0.48*, 0.50*, respectively). However, the same significant effect for these phenological traits was not found between chilling units and 50% germination of seeds, as well as between chilling units and harvest dates.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2013000200012&lng=en&tlng=enPrunus spp.pêssegodormência |
| spellingShingle | Américo Wagner Júnior Claudio Horst Bruckner José Osmar da Costa Silva Carlos Eduardo Magalhães dos Santos Leonardo Duarte Pimentel Sérgio Miguel Mazaro Chilling requirement for seed germination and phenological observations on peach cultivars Revista Ceres Prunus spp. pêssego dormência |
| title | Chilling requirement for seed germination and phenological observations on peach cultivars |
| title_full | Chilling requirement for seed germination and phenological observations on peach cultivars |
| title_fullStr | Chilling requirement for seed germination and phenological observations on peach cultivars |
| title_full_unstemmed | Chilling requirement for seed germination and phenological observations on peach cultivars |
| title_short | Chilling requirement for seed germination and phenological observations on peach cultivars |
| title_sort | chilling requirement for seed germination and phenological observations on peach cultivars |
| topic | Prunus spp. pêssego dormência |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2013000200012&lng=en&tlng=en |
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