Effects of Soaking in Low Temperature Water on Germination of Rice Seed in Raising Rice Seedlings in the Cold Season
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- Kitano Junichi
- Mie Prefecture Agricultural Research Institute
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- Nakayama Yukinori
- Mie Prefecture Agricultural Research Institute
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- Matsui Mikio
- Mie Prefecture Agricultural Research Institute
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- Onishi Junpei
- Mie Prefecture Agricultural Research Institute
Bibliographic Information
- Other Title
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- 低温期育苗における水稲種子の発芽に及ぼす浸種水温の影響
- 栽培 低温期育苗における水稲種子の発芽に及ぼす浸種水温の影響
- サイバイ テイオンキ イクビョウ ニ オケル スイトウ シュシ ノ ハツガ ニ オヨボス シンシュ スイオン ノ エイキョウ
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Abstract
Poor germination problems occurred in early-season rice culture in Mie prefecture in 2007 and 2008 when seed soaking was conducted during the cold season (late February – middle March). In this study, the effects of low water temperature given at different periods during seed soaking on the germination percentage were examined to find a method of soaking effective to raise the germination rate. Germination was inhibited by soaking in low-temperature (5°C) water on the first day followed by optimum-temperature water (12.5°C) thereafter. On the contrary, germination percentage was not lowered by soaking in low-temperature water after soaking in optimum-temperature water for one day. An optimum-temperature during the initial 2-8 hours is enough to keep the germination percentage as high as soaking in optimum-temperature water throughout the germination period. It is recommended to keep the water temperature optimum during the initial period of seed soaking to keep a high germination rate for raising the seedlings in the cold season. Germination was inhibited by soaking in low-temperature water in all rice varieties and seed storage periods examined.
Journal
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- Japanese Journal of Crop Science
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Japanese Journal of Crop Science 79 (3), 275-283, 2010
CROP SCIENCE SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390001204282414976
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- NII Article ID
- 10026484273
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- NII Book ID
- AN00189888
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- ISSN
- 13490990
- 00111848
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- NDL BIB ID
- 10773761
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed