Barrenness and Changes in Tassel Development and Flowering Habit of Hybrid Maize Associated with Low Air Temperatures
Severe barrenness of maize (Zea mays L.) occurred in 2003 in eastern Hokkaido (Konsen region), one of the coldest areas in Japan. In many fields, tassels with few or no spikelets were observed in the cultivar widely grown in this region. The anthesis date was delayed 7 days from the silking date in...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2015-01-01
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| Series: | Plant Production Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1626/pps.18.93 |
| _version_ | 1818496994646163456 |
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| author | Taku Hayashi Tsukasa Makino Narichika Sato Kenzaburo Deguchi |
| author_facet | Taku Hayashi Tsukasa Makino Narichika Sato Kenzaburo Deguchi |
| author_sort | Taku Hayashi |
| collection | DOAJ |
| description | Severe barrenness of maize (Zea mays L.) occurred in 2003 in eastern Hokkaido (Konsen region), one of the coldest areas in Japan. In many fields, tassels with few or no spikelets were observed in the cultivar widely grown in this region. The anthesis date was delayed 7 days from the silking date in the cultivar in the field at Konsen Agricultural Experiment Station (KAES). In July, when the tassels were developing at the 6- to the 9-leaf stage, the air temperature and sunshine hours were much lower in 2003 than in the average year. Therefore, we hypothesized that the barrenness resulted from these specific climatic conditions in 2003. To examine this assumption, we applied low temperature treatment (10ºC for 7 days) to the plants of the cultivar widely grown in this region in 2003 at around the 6- to 9-leaf stage in a greenhouse at KAES. Tassels were formed at the 7-leaf stage, and developed but they did not reach their full-size at the 8-leaf stage. The tassel length was shorter when the plants were subjected to the low temperature treatment, especially at the 8-leaf stage. The days from silking to anthesis was increased by the treatment in 2 of the 3 test years. The present results suggest that the cultivar is sensitive to the low air temperature at the 8-leaf stage for the development of tassels and may result in barrenness. |
| first_indexed | 2024-12-10T18:39:36Z |
| format | Article |
| id | doaj.art-26e65ee52df24ed5bced75b22b5544f1 |
| institution | Directory Open Access Journal |
| issn | 1343-943X 1349-1008 |
| language | English |
| last_indexed | 2024-12-10T18:39:36Z |
| publishDate | 2015-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Plant Production Science |
| spelling | doaj.art-26e65ee52df24ed5bced75b22b5544f12022-12-22T01:37:41ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082015-01-01181939810.1626/pps.18.9311645227Barrenness and Changes in Tassel Development and Flowering Habit of Hybrid Maize Associated with Low Air TemperaturesTaku Hayashi0Tsukasa Makino1Narichika Sato2Kenzaburo Deguchi3Facul1Hokkaido Research Organization Konsen Agricultural Experiment StationFacul1Hokkaido Research Organization Konsen Agricultural Experiment StationFacul1Hokkaido Research Organization Konsen Agricultural Experiment StationHokkaido Research Organization Animal Research CenterSevere barrenness of maize (Zea mays L.) occurred in 2003 in eastern Hokkaido (Konsen region), one of the coldest areas in Japan. In many fields, tassels with few or no spikelets were observed in the cultivar widely grown in this region. The anthesis date was delayed 7 days from the silking date in the cultivar in the field at Konsen Agricultural Experiment Station (KAES). In July, when the tassels were developing at the 6- to the 9-leaf stage, the air temperature and sunshine hours were much lower in 2003 than in the average year. Therefore, we hypothesized that the barrenness resulted from these specific climatic conditions in 2003. To examine this assumption, we applied low temperature treatment (10ºC for 7 days) to the plants of the cultivar widely grown in this region in 2003 at around the 6- to 9-leaf stage in a greenhouse at KAES. Tassels were formed at the 7-leaf stage, and developed but they did not reach their full-size at the 8-leaf stage. The tassel length was shorter when the plants were subjected to the low temperature treatment, especially at the 8-leaf stage. The days from silking to anthesis was increased by the treatment in 2 of the 3 test years. The present results suggest that the cultivar is sensitive to the low air temperature at the 8-leaf stage for the development of tassels and may result in barrenness.http://dx.doi.org/10.1626/pps.18.93BarrennessHybrid cultivarLow temperatureTassel development |
| spellingShingle | Taku Hayashi Tsukasa Makino Narichika Sato Kenzaburo Deguchi Barrenness and Changes in Tassel Development and Flowering Habit of Hybrid Maize Associated with Low Air Temperatures Plant Production Science Barrenness Hybrid cultivar Low temperature Tassel development |
| title | Barrenness and Changes in Tassel Development and Flowering Habit of Hybrid Maize Associated with Low Air Temperatures |
| title_full | Barrenness and Changes in Tassel Development and Flowering Habit of Hybrid Maize Associated with Low Air Temperatures |
| title_fullStr | Barrenness and Changes in Tassel Development and Flowering Habit of Hybrid Maize Associated with Low Air Temperatures |
| title_full_unstemmed | Barrenness and Changes in Tassel Development and Flowering Habit of Hybrid Maize Associated with Low Air Temperatures |
| title_short | Barrenness and Changes in Tassel Development and Flowering Habit of Hybrid Maize Associated with Low Air Temperatures |
| title_sort | barrenness and changes in tassel development and flowering habit of hybrid maize associated with low air temperatures |
| topic | Barrenness Hybrid cultivar Low temperature Tassel development |
| url | http://dx.doi.org/10.1626/pps.18.93 |
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