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| Content Provider | Springer Nature Link |
|---|---|
| Author | Lee, Kyu Jong Kim, Da Ik Kim, Kwang Soo Lee, Byun Woo |
| Copyright Year | 2014 |
| Abstract | This experiment was conducted to evaluate the varietal differences of spikelet sterility response to air temperature during the reproductive stage. Six rice varieties differing in maturity group (early-maturing; Unkwangbyeo, Odaebyeo, medium-maturing; Andabyeo, Hwasungbyeo, and mid-late maturing; Donganbyeo, Chuchungbyeo) were grown under ambient temperature (AT) conditions before being transferred to the temperature-controlled plastic houses. For the synchronization of the growth stage, 15 rice seedlings (2011) and 10 rice seedlings (2012) per pot were transplanted in a circle and only main stems were grown by removing tillers at early stage of their emergence. At the initial heading stage, pots for each variety were transferred to the four plastic houses that were controlled to AT, AT + 1.5°C, AT + 3.0°C, and AT + 5.0°C, respectively. Spikelet fertility was significantly decreased due to high temperature-induced spikelet sterility at AT + 3.0 and/or AT + 5.0°C treatment during flowering time in 2011. Spikelet fertility in 2012 was much lower than in 2011 even at the AT treatment because of high temperature-induced spikelet sterility at the micosporogenesis stage. Critical temperature (Tc) that induces 50% spikelet sterility at flowering time was estimated by fitting the temperature response of spikelet fertility to a logistic function. Tc ranged from 34.6°C (Odaebyeo) to 39.7°C (Hwasungbyeo), Odaebyeo being significantly more sensitive to high temperature-induced spikelet sterility than the other varieties. This result has shown that response of spikelet sterility to higher temperature is different according to rice varieties. However, further study should be done to arrive at a concrete conclusion. |
| Starting Page | 53 |
| Ending Page | 57 |
| Page Count | 5 |
| File Format | |
| ISSN | 19759479 |
| Journal | Journal of Crop Science and Biotechnology |
| Volume Number | 17 |
| Issue Number | 2 |
| e-ISSN | 20058276 |
| Language | English |
| Publisher | The Korean Society of Crop Science |
| Publisher Date | 2014-06-24 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | high temperature rice spikelet sterility Plant Sciences Plant Genetics & Genomics Plant Pathology Plant Physiology Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science Biotechnology Agronomy and Crop Science |
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