書誌事項
- タイトル別名
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- Effects of Temperature Treatments for Rice Plants before/after Heading Stages on Water Status of Ripening Seeds
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We examined effects of different temperature treatments for rice plants before/after heading stages on water status of ripening seeds by nuclear magnetic resonance (NMR) relaxation times (T_1 and T_2). At 0 day after heading (DAH), the T_1 values of seeds grown at 30/30℃ (before/after heading stages, treated temperatures) and 30/25℃ were higher than those of 25/25℃ and 25/30℃. However, at 14 DAH, those values were less than that treated at 25/25℃ and the changes in T_1 of rice seed during an early ripening stage showed similar changes in water content suggesting T_1 values closely related to the quantity of water. The T_2 values showing less than 1 ms were observed at 30/30℃ and 30/25℃ treatments at 21 DAH, while those at 25/25℃ and 25/30℃ treatments were still over 20 ms and it sharply dropped to less than 1 ms at 28 DAH. These results indicated that the NMR relaxation times, T_1 and T_2, were useful diagnostic indicators for water status during seed ripening. Especially, free water in rice seeds at high temperature treatment after the heading stage remained for seven days longer than the treatment before the heading stage.
収録刊行物
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- 低温生物工学会誌
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低温生物工学会誌 58 (2), 173-178, 2012
低温生物工学会
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詳細情報 詳細情報について
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- CRID
- 1390001205087556480
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- NII論文ID
- 110009612933
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- NII書誌ID
- AN10448734
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- ISSN
- 24241555
- 13407902
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- NDL書誌ID
- 024145896
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可