| Item type |
国際農研デフォルトアイテムタイプ（フル）(1) |
| 公開日 |
2026-02-05 |
| タイトル |
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タイトル |
The role of seed phytic acid levels in promoting black rice growth, nutrient use efficiency, and yield under low-input conditions |
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言語 |
en |
| 作成者 |
Oo, Aung Zaw
Asai, Hidetoshi
Songyikhangsuthor, Khamdok
| en |
Songyikhangsuthor, Khamdok
Upland Agriculture Research Center, Laos
|
Search repository
Vongphouthone, Banthasack
| en |
Vongphouthone, Banthasack
Upland Agriculture Research Center, Laos
|
Search repository
Takai, Toshiyuki
Marui, Junichiro
Saito, Hiroki
Vilayheuang, Koukham
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
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権利情報 |
© 2026 Oo, Asai, Songyikhangsuthor, Vongphouthone, Takai, Marui, Saito and Vilayheuang. |
| 権利情報 |
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権利情報Resource |
https://creativecommons.org/licenses/by/4.0/deed/en |
|
権利情報 |
This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
| 権利情報 |
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権利情報 |
https://creativecommons.org/licenses/by/4.0/ |
| 権利情報 |
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権利情報 |
The version of record of this article, first published in Frontiers in Agronomy, is available online at Publisher’s website: https://doi.org/10.3389/fagro.2026.1743691 |
| 主題 |
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主題 |
black rice, early growth, grain yield, phytic acid, seed quality |
| 内容記述 |
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内容記述タイプ |
Abstract |
|
内容記述 |
Black rice is cultivated in Southeast Asia’s upland and lowland area, where yields are often limited by low soil fertility, phosphorus (P) deficiency, and limited external inputs. Phytic acid (PA) —the principal storage form of P in rice seeds— represents more than 70% of the total seed P. Data on the effects of seed PA levels on the agronomic performance of black rice, especially under upland field conditions, are scarce. This study explored the effect of seed PA concentration on the early growth, nutrient uptake, and yield performance of black rice under both pot and upland field conditions. In pot experiments, we tested three levels of seed PA (low, moderate, and high) at different soil P applications (control, low P, and high P). A complementary field trial in Luang Prabang, Laos, evaluated the effects of seed PA and nitrogen (N) application (0 or 30 kg N ha⁻¹) under rainfed conditions. Results demonstrated that high-PA seeds significantly improved early seedling vigor, shoot and root biomass, and nutrient uptake, particularly under conditions of low or no external P supply. At maturity, high-PA plants yielded 35% more grain than that yielded by low-PA plants in pots and exhibited a 47% yield advantage in upland fields. Low N input did not affect grain yield but notably reduced grain PA levels under upland conditions. Overall, the findings indicate that seed PA concentration is a key physiological trait that enhances the adaptation and productivity of black rice in nutrient-poor upland systems. |
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言語 |
en |
| 出版者 |
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出版者 |
Frontiers |
| 日付 |
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日付 |
2026-01-09 |
|
日付タイプ |
Accepted |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.3389/fagro.2026.1743691 |
| 収録物識別子 |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
2673-3218 |
| 書誌情報 |
en : Frontiers in Agronomy
巻 8,
p. 1743691,
発行日 2026-01-28
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| 助成情報 |
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識別子タイプ |
Crossref Funder |
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助成機関識別子 |
https://doi.org/10.13039/501100009472 |
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助成機関名 |
Japan International Research Center for Agricultural Sciences (JIRCAS)(en) |
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研究課題番号URI |
https://www.jircas.go.jp/en/program/prob/b2 |
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研究課題番号 |
05a1B2 |
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研究課題名 |
Design of crop breeding and food processing of indigenous resources to create new and diversified demands(en) |
| 助成情報 |
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識別子タイプ |
Crossref Funder |
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助成機関識別子 |
https://doi.org/10.13039/501100001691 |
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助成機関名 |
Japan Society for the Promotion of Science (JSPS)(en) |
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研究課題番号URI |
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K05942/ |
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研究課題番号 |
JP22K05942 |
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研究課題名 |
クロロフィル蛍光の定量的評価にもとづく黒米「H50」のストレス耐性の解明(ja) |
Oo_et_al.,2026_Front.Agron (2.9 MB)
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