The Effect of Day to Night Temperature Variation on Leaf Development in Wheat
The rate of leaf development in wheat is related to time and temperature in units of degree-days (DD) leaf−1 (phyllochron). Experiments were conducted in controlled environment chambers to study the effect of day to night variation in temperature on leaf development in two wheat cultivars, Penawawa...
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Format: | Article |
Language: | English |
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Taylor & Francis Group
1998-01-01
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Series: | Plant Production Science |
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Online Access: | http://dx.doi.org/10.1626/pps.1.254 |
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author | Masahiko Tamaki Katsu Imai Dale N. Moss |
author_facet | Masahiko Tamaki Katsu Imai Dale N. Moss |
author_sort | Masahiko Tamaki |
collection | DOAJ |
description | The rate of leaf development in wheat is related to time and temperature in units of degree-days (DD) leaf−1 (phyllochron). Experiments were conducted in controlled environment chambers to study the effect of day to night variation in temperature on leaf development in two wheat cultivars, Penawawa and Stephens. Plants were grown at constant 20°C, and in eight day/night temperature ranges as wide as 8/32°C to 32/8°C, all with a mean temperature of 20°C. The leaf number on the main stems was counted (in Haun units) every other day, from the emergence of the 2nd leaf until the emergence of the 5th leaf. Leaf phyllochron values were derived from the inverse of the slopes of the linear regression of leaf number on DD. Phyllochron values ranged from 99 to 153 DD leaf−1. The phyllochron values were greater when higher temperatures were imposed at night under extreme day to night temperature treatment. |
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institution | Directory Open Access Journal |
issn | 1343-943X 1349-1008 |
language | English |
last_indexed | 2024-12-11T14:24:49Z |
publishDate | 1998-01-01 |
publisher | Taylor & Francis Group |
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series | Plant Production Science |
spelling | doaj.art-14c7955150d749a9b13e7d7b89e67bd92022-12-22T01:02:43ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10081998-01-011425425710.1626/pps.1.25411644331The Effect of Day to Night Temperature Variation on Leaf Development in WheatMasahiko Tamaki0Katsu Imai1Dale N. Moss2Hiroshima Prefectural UniversityMeiji University, Oregon State University, CorvallisThe rate of leaf development in wheat is related to time and temperature in units of degree-days (DD) leaf−1 (phyllochron). Experiments were conducted in controlled environment chambers to study the effect of day to night variation in temperature on leaf development in two wheat cultivars, Penawawa and Stephens. Plants were grown at constant 20°C, and in eight day/night temperature ranges as wide as 8/32°C to 32/8°C, all with a mean temperature of 20°C. The leaf number on the main stems was counted (in Haun units) every other day, from the emergence of the 2nd leaf until the emergence of the 5th leaf. Leaf phyllochron values were derived from the inverse of the slopes of the linear regression of leaf number on DD. Phyllochron values ranged from 99 to 153 DD leaf−1. The phyllochron values were greater when higher temperatures were imposed at night under extreme day to night temperature treatment.http://dx.doi.org/10.1626/pps.1.254DevelopmentLeafPhyllochronTemperatureWheat |
spellingShingle | Masahiko Tamaki Katsu Imai Dale N. Moss The Effect of Day to Night Temperature Variation on Leaf Development in Wheat Plant Production Science Development Leaf Phyllochron Temperature Wheat |
title | The Effect of Day to Night Temperature Variation on Leaf Development in Wheat |
title_full | The Effect of Day to Night Temperature Variation on Leaf Development in Wheat |
title_fullStr | The Effect of Day to Night Temperature Variation on Leaf Development in Wheat |
title_full_unstemmed | The Effect of Day to Night Temperature Variation on Leaf Development in Wheat |
title_short | The Effect of Day to Night Temperature Variation on Leaf Development in Wheat |
title_sort | effect of day to night temperature variation on leaf development in wheat |
topic | Development Leaf Phyllochron Temperature Wheat |
url | http://dx.doi.org/10.1626/pps.1.254 |
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