Photoperiodically sensitive and insensitive phases of preflowering development in rice
The time interval between sowing and flowering in rice (Oryza sativa L.) comprises three successive phases: a basic vegetative phase (BVP), a photoperiod‐sensitive phase (PSP), and a post‐PSP phase (PPP). The objective of this study was to estimate the length of the three phases in diverse rice cult...
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| Format: | Journal Article |
| Language: | Inglés |
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Wiley
1997
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| Online Access: | https://hdl.handle.net/10568/167272 |
| _version_ | 1855534948172169216 |
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| author | Yin, Xinyou Kropff, Martin J. Ynalvez, Marcus A. |
| author_browse | Kropff, Martin J. Yin, Xinyou Ynalvez, Marcus A. |
| author_facet | Yin, Xinyou Kropff, Martin J. Ynalvez, Marcus A. |
| author_sort | Yin, Xinyou |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The time interval between sowing and flowering in rice (Oryza sativa L.) comprises three successive phases: a basic vegetative phase (BVP), a photoperiod‐sensitive phase (PSP), and a post‐PSP phase (PPP). The objective of this study was to estimate the length of the three phases in diverse rice cultivars to provide the basis for accurately predicting rice flowering dates. In greenhouse experiments, plants of 20 cultivars were transferred from short day (SD) (10 h d−1) long day (LD) (12.5 or 14 h d−1) or from LD to at various tim es aft er sowing. The duration of BVP varied greatly among cultivars ranging from 16.7 to 45.4 d. The indica cultivars exhibited an apparently longer BVP than the japonica cuitivars. The duration of PPP also varied among cultivars, from 18.0 to 37.2 d. For all cultivars, the length of the intervening PSP was shorter under SD conditions (3.6–24.1 d) than under LD conditions (10.5–76.5 d); the difference in PSP between SD and LD depended on the photoperiod sensitivity of the cultivar. The PSP under both SD and LD conditions did not necessarily end at panicle initiation (PI), but, on average, 4 to 5 d after PI. This study confirms the necessity to divide the entire preflowering period into the three phases for modeling purposes. Further studies are needed to elucidate the phenomenoinn some cultivars of a significant delay of flowering by early SD‐to‐LD transfers before PI. |
| format | Journal Article |
| id | CGSpace167272 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1997 |
| publishDateRange | 1997 |
| publishDateSort | 1997 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1672722024-12-22T05:44:59Z Photoperiodically sensitive and insensitive phases of preflowering development in rice Yin, Xinyou Kropff, Martin J. Ynalvez, Marcus A. photoperiod flowering date cultivars indica rice japonica rice The time interval between sowing and flowering in rice (Oryza sativa L.) comprises three successive phases: a basic vegetative phase (BVP), a photoperiod‐sensitive phase (PSP), and a post‐PSP phase (PPP). The objective of this study was to estimate the length of the three phases in diverse rice cultivars to provide the basis for accurately predicting rice flowering dates. In greenhouse experiments, plants of 20 cultivars were transferred from short day (SD) (10 h d−1) long day (LD) (12.5 or 14 h d−1) or from LD to at various tim es aft er sowing. The duration of BVP varied greatly among cultivars ranging from 16.7 to 45.4 d. The indica cultivars exhibited an apparently longer BVP than the japonica cuitivars. The duration of PPP also varied among cultivars, from 18.0 to 37.2 d. For all cultivars, the length of the intervening PSP was shorter under SD conditions (3.6–24.1 d) than under LD conditions (10.5–76.5 d); the difference in PSP between SD and LD depended on the photoperiod sensitivity of the cultivar. The PSP under both SD and LD conditions did not necessarily end at panicle initiation (PI), but, on average, 4 to 5 d after PI. This study confirms the necessity to divide the entire preflowering period into the three phases for modeling purposes. Further studies are needed to elucidate the phenomenoinn some cultivars of a significant delay of flowering by early SD‐to‐LD transfers before PI. 1997-01 2024-12-19T12:57:11Z 2024-12-19T12:57:11Z Journal Article https://hdl.handle.net/10568/167272 en Wiley Yin, Xinyou; Kropff, Martin J. and Ynalvez, Marcus A. 1997. Photoperiodically sensitive and insensitive phases of preflowering development in rice. Crop Science, Volume 37 no. 1 p. 182-190 |
| spellingShingle | photoperiod flowering date cultivars indica rice japonica rice Yin, Xinyou Kropff, Martin J. Ynalvez, Marcus A. Photoperiodically sensitive and insensitive phases of preflowering development in rice |
| title | Photoperiodically sensitive and insensitive phases of preflowering development in rice |
| title_full | Photoperiodically sensitive and insensitive phases of preflowering development in rice |
| title_fullStr | Photoperiodically sensitive and insensitive phases of preflowering development in rice |
| title_full_unstemmed | Photoperiodically sensitive and insensitive phases of preflowering development in rice |
| title_short | Photoperiodically sensitive and insensitive phases of preflowering development in rice |
| title_sort | photoperiodically sensitive and insensitive phases of preflowering development in rice |
| topic | photoperiod flowering date cultivars indica rice japonica rice |
| url | https://hdl.handle.net/10568/167272 |
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