Characterizing roots and water uptake in a ground cover rice production system.
Water-saving ground cover rice production systems (GCRPS) are gaining popularity in many parts of the world. We aimed to describe the characteristics of root growth, morphology, distribution, and water uptake for a GCRPS.A traditional paddy rice production system (TPRPS) was compared with GCRPS in g...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2017-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC5501594?pdf=render |
| _version_ | 1828790079581061120 |
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| author | Sen Li Qiang Zuo Xiaoyu Wang Wenwen Ma Xinxin Jin Jianchu Shi Alon Ben-Gal |
| author_facet | Sen Li Qiang Zuo Xiaoyu Wang Wenwen Ma Xinxin Jin Jianchu Shi Alon Ben-Gal |
| author_sort | Sen Li |
| collection | DOAJ |
| description | Water-saving ground cover rice production systems (GCRPS) are gaining popularity in many parts of the world. We aimed to describe the characteristics of root growth, morphology, distribution, and water uptake for a GCRPS.A traditional paddy rice production system (TPRPS) was compared with GCRPS in greenhouse and field experiments. In the greenhouse, GCRPS where root zone average soil water content was kept near saturation (GCRPSsat), field capacity (GCRPSfwc) and 80% field capacity (GCRPS80%), were evaluated. In a two-year field experiment, GCRPSsat and GCRPS80% were applied.Similar results were found in greenhouse and field experiments. Before mid-tillering the upper soil temperature was higher for GCRPS, leading to enhanced root dry weight, length, surface area, specific root length, and smaller diameter of roots but lower water uptake rate per root length compared to TPRPS. In subsequent growth stages, the reduced soil water content under GCRPS caused that the preponderance of root growth under GCRPSsat disappeared in comparison to TPRPS. Under other GCRPS treatments (GCRPSfwc and GCRPS80%), significant limitation on root growth, bigger root diameter and higher water uptake rate per root length were found.Discrepancies in soil water and temperature between TPRPS and GCRPS caused adjustments to root growth, morphology, distribution and function. Even though drought stress was inevitable after mid-tillering under GCRPS, especially GCRPS80%, similar or even enhanced root water uptake capacity in comparison to TPRPS might promote allocation of photosynthetic products to shoots and increase water productivity. |
| first_indexed | 2024-12-12T01:23:59Z |
| format | Article |
| id | doaj.art-a5ae98784dd8465caef375bd11327833 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-12T01:23:59Z |
| publishDate | 2017-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-a5ae98784dd8465caef375bd113278332022-12-22T00:43:09ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01127e018071310.1371/journal.pone.0180713Characterizing roots and water uptake in a ground cover rice production system.Sen LiQiang ZuoXiaoyu WangWenwen MaXinxin JinJianchu ShiAlon Ben-GalWater-saving ground cover rice production systems (GCRPS) are gaining popularity in many parts of the world. We aimed to describe the characteristics of root growth, morphology, distribution, and water uptake for a GCRPS.A traditional paddy rice production system (TPRPS) was compared with GCRPS in greenhouse and field experiments. In the greenhouse, GCRPS where root zone average soil water content was kept near saturation (GCRPSsat), field capacity (GCRPSfwc) and 80% field capacity (GCRPS80%), were evaluated. In a two-year field experiment, GCRPSsat and GCRPS80% were applied.Similar results were found in greenhouse and field experiments. Before mid-tillering the upper soil temperature was higher for GCRPS, leading to enhanced root dry weight, length, surface area, specific root length, and smaller diameter of roots but lower water uptake rate per root length compared to TPRPS. In subsequent growth stages, the reduced soil water content under GCRPS caused that the preponderance of root growth under GCRPSsat disappeared in comparison to TPRPS. Under other GCRPS treatments (GCRPSfwc and GCRPS80%), significant limitation on root growth, bigger root diameter and higher water uptake rate per root length were found.Discrepancies in soil water and temperature between TPRPS and GCRPS caused adjustments to root growth, morphology, distribution and function. Even though drought stress was inevitable after mid-tillering under GCRPS, especially GCRPS80%, similar or even enhanced root water uptake capacity in comparison to TPRPS might promote allocation of photosynthetic products to shoots and increase water productivity.http://europepmc.org/articles/PMC5501594?pdf=render |
| spellingShingle | Sen Li Qiang Zuo Xiaoyu Wang Wenwen Ma Xinxin Jin Jianchu Shi Alon Ben-Gal Characterizing roots and water uptake in a ground cover rice production system. PLoS ONE |
| title | Characterizing roots and water uptake in a ground cover rice production system. |
| title_full | Characterizing roots and water uptake in a ground cover rice production system. |
| title_fullStr | Characterizing roots and water uptake in a ground cover rice production system. |
| title_full_unstemmed | Characterizing roots and water uptake in a ground cover rice production system. |
| title_short | Characterizing roots and water uptake in a ground cover rice production system. |
| title_sort | characterizing roots and water uptake in a ground cover rice production system |
| url | http://europepmc.org/articles/PMC5501594?pdf=render |
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