2017年
Erect panicle super rice varieties enhance yield by harvest index advantages in high nitrogen and density conditions
JOURNAL OF INTEGRATIVE AGRICULTURE
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回数 : 30
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- 巻
- 16
- 号
- 7
- 開始ページ
- 1467
- 終了ページ
- 1473
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/S2095-3119(17)61667-8
- 出版者・発行元
- ELSEVIER SCI LTD
The erect panicle (Ep) type is an important characteristic for japonica super rice in Northeast China and plays a significant role in enhancing yield. The Ep type is considered to be a genetic ideotype resource to the japonica super rice group by virtue of its agronomic advantages such as grain number per panicle and biomass. This study addresses the effects of nitrogen and planting density conditions on yielding performance regarding panicle type (PT) using the recombinant inbred line (RIL) population derived from the cross between an Ep variety Liaogeng 5 and non-Ep variety Wanlun 422. The genetics underlying the Ep type proved to be robust not only for panicle-type optimization but also plant height, panicle length, flag leaf length and seed density. We also found that regardless of nitrogen and density, correlation between harvest index (HI) and plant height was not significant in Ep type whatever the nitrogen and density. The application of Ep type provides a potential strategy for yield improvement by increasing biomass through HI maintainable in rice.
- リンク情報
- ID情報
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- DOI : 10.1016/S2095-3119(17)61667-8
- ISSN : 2095-3119
- Web of Science ID : WOS:000405647500005