Diversity of Stay Green Traits in Flag Leaf of Rice
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- Kobata Tohru
- Fac. Life Science, Shimane Univ.
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- Tomisaka Kouhei
- Fac. Life Science, Shimane Univ.
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- Shinonaga Miwa
- Fac. Life Science, Shimane Univ.
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- Peng Shaobing
- College of Plant Sci. and Tec., Huazhong Agricultural Univ.
Bibliographic Information
- Other Title
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- イネ止葉における緑葉維持能力の多様性
- イネシヨウ ニ オケル リョク ヨウ イジ ノウリョク ノ タヨウセイ
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Abstract
<p>Cultivar variances in the stay green trait of flag leaves in NIAS World (WRC), Japanese (JRC) rice core collection and Chinese high yielding hybrid and inbred cultivars were investigated. A leaf color reading (SPAD) was determined using the chlorophyll meter at the center of the flag leaf segment floated on water at 35°C under dark conditions for one week. There was a large cultivar variance in a ratio of after (SPADE) to before (SPADS) incubation in SPAD (GM= SPADE/SPADS). In WRC and JRC cultivars, GM in japonica rice tended to occupy a higher rate than indica and tropical japonica rice. There were typical cultivars of high GM in which both SPADE and SPADS were significantly high. In Chinese high yielding rice (9–11 t ha-1), the GM diversely differed and positively related with harvest index and the grain yield per total straw weight × SPAD value. These relationships suggested that higher GM increased the productivity of straw for the grain yield due to maintenance of chlorophyll function. It was suggested that the stay green trait is widely distributed in rice resources and it can be used for the improvement of rice production.</p>
Journal
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- Japanese Journal of Crop Science
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Japanese Journal of Crop Science 90 (2), 177-181, 2021-04-05
CROP SCIENCE SOCIETY OF JAPAN
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Keywords
Details 詳細情報について
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- CRID
- 1390569557084987392
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- NII Article ID
- 130008040265
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- NII Book ID
- AN00189888
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- ISSN
- 13490990
- 00111848
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- NDL BIB ID
- 031469380
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed