Oat development in response to temperature
ABSTRACT: Temperature affects plant development therefore phyllochron has been used as a predictor for developmental events to define the time for agricultural managing practices. This study aims to evaluate changes in phyllochron and thermal sum required for flowering by oat genotypes developed at...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Maria
2021-09-01
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| Series: | Ciência Rural |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782022000100202&tlng=en |
| _version_ | 1818951353174589440 |
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| author | Carla Andréa Delatorre Vanessa de Freitas Duarte Andriele Wairich Guilherme Paim Fraga Márcio Pacheco Ribeiro Helen Estima Lazzari |
| author_facet | Carla Andréa Delatorre Vanessa de Freitas Duarte Andriele Wairich Guilherme Paim Fraga Márcio Pacheco Ribeiro Helen Estima Lazzari |
| author_sort | Carla Andréa Delatorre |
| collection | DOAJ |
| description | ABSTRACT: Temperature affects plant development therefore phyllochron has been used as a predictor for developmental events to define the time for agricultural managing practices. This study aims to evaluate changes in phyllochron and thermal sum required for flowering by oat genotypes developed at different decades at three temperature regimes; the effect of high temperature on phytomere development; and identify the development stage at the moment of meristem transition to reproductive stage. Three environments were obtained by sowing in the fall, in the spring, and under constant temperature (17oC), always at inductive photoperiod. Despite changes in nominal values small differences were found among genotypes’ phyllochron. Adding specific optimal and maximum temperatures into the growing degree days’ calculation demonstrated phyllochron stability among environments. Plant cycle length and thermal sum correlated with the number of developed phytomeres. UFRGS 078030-2 plants flowered earlier, had a small number of phytomeres, and greater tolerance to elevated temperatures than the other genotypes. More recent genotypes transit to reproductive stage at an earlier Haun stage than older ones. |
| first_indexed | 2024-12-20T09:33:08Z |
| format | Article |
| id | doaj.art-5418611f3a9a4cb7bd8f2defbe90668a |
| institution | Directory Open Access Journal |
| issn | 1678-4596 |
| language | English |
| last_indexed | 2024-12-20T09:33:08Z |
| publishDate | 2021-09-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Rural |
| spelling | doaj.art-5418611f3a9a4cb7bd8f2defbe90668a2022-12-21T19:45:03ZengUniversidade Federal de Santa MariaCiência Rural1678-45962021-09-0152110.1590/0103-8478cr20210198Oat development in response to temperatureCarla Andréa Delatorrehttps://orcid.org/0000-0002-1644-3813Vanessa de Freitas Duartehttps://orcid.org/0000-0003-4699-8980Andriele Wairichhttps://orcid.org/0000-0001-5440-9918Guilherme Paim Fragahttps://orcid.org/0000-0002-4538-3207Márcio Pacheco Ribeirohttps://orcid.org/0000-0003-3075-2214Helen Estima Lazzarihttps://orcid.org/0000-0001-9689-4683ABSTRACT: Temperature affects plant development therefore phyllochron has been used as a predictor for developmental events to define the time for agricultural managing practices. This study aims to evaluate changes in phyllochron and thermal sum required for flowering by oat genotypes developed at different decades at three temperature regimes; the effect of high temperature on phytomere development; and identify the development stage at the moment of meristem transition to reproductive stage. Three environments were obtained by sowing in the fall, in the spring, and under constant temperature (17oC), always at inductive photoperiod. Despite changes in nominal values small differences were found among genotypes’ phyllochron. Adding specific optimal and maximum temperatures into the growing degree days’ calculation demonstrated phyllochron stability among environments. Plant cycle length and thermal sum correlated with the number of developed phytomeres. UFRGS 078030-2 plants flowered earlier, had a small number of phytomeres, and greater tolerance to elevated temperatures than the other genotypes. More recent genotypes transit to reproductive stage at an earlier Haun stage than older ones.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782022000100202&tlng=enAvena sativameristem transitionphyllochronthermal sumphytomer |
| spellingShingle | Carla Andréa Delatorre Vanessa de Freitas Duarte Andriele Wairich Guilherme Paim Fraga Márcio Pacheco Ribeiro Helen Estima Lazzari Oat development in response to temperature Ciência Rural Avena sativa meristem transition phyllochron thermal sum phytomer |
| title | Oat development in response to temperature |
| title_full | Oat development in response to temperature |
| title_fullStr | Oat development in response to temperature |
| title_full_unstemmed | Oat development in response to temperature |
| title_short | Oat development in response to temperature |
| title_sort | oat development in response to temperature |
| topic | Avena sativa meristem transition phyllochron thermal sum phytomer |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782022000100202&tlng=en |
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