An early-morning flowering trait in rice can enhance grain yield under heat stress field conditions at flowering stage
An early-morning flowering (EMF) trait is supposed to be effective in enhancing grain yield due to mitigation of heat-induced spikelet sterility at flowering in rice. This study evaluated (i) phenotypic differences between a near-isogenic line carrying a QTL for EMF trait (designated as IR64 +qEMF3)...
| Autores principales: | , , , , , , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2022
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/127164 |
| _version_ | 1855513935337226240 |
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| author | Ishimaru, Tsutomu Hlaing, Khin Thandar Oo, Ye Min Lwin, Tin Mg Sasaki, Kazuhiro Lumanglas, Patrick D. Simon, Eliza-Vie M. Myint, Tin Tin Hairmansis, Aris Susanto, Untung Ayyenar, Bharathi Muthurajan, Raveendran Hirabayashi, Hideyuki Fukuta, Yoshimichi Kobayasi, Kazuhiro Matsui, Tsutomu Yoshimoto, Mayumi Htun, Than Myint |
| author_browse | Ayyenar, Bharathi Fukuta, Yoshimichi Hairmansis, Aris Hirabayashi, Hideyuki Hlaing, Khin Thandar Htun, Than Myint Ishimaru, Tsutomu Kobayasi, Kazuhiro Lumanglas, Patrick D. Lwin, Tin Mg Matsui, Tsutomu Muthurajan, Raveendran Myint, Tin Tin Oo, Ye Min Sasaki, Kazuhiro Simon, Eliza-Vie M. Susanto, Untung Yoshimoto, Mayumi |
| author_facet | Ishimaru, Tsutomu Hlaing, Khin Thandar Oo, Ye Min Lwin, Tin Mg Sasaki, Kazuhiro Lumanglas, Patrick D. Simon, Eliza-Vie M. Myint, Tin Tin Hairmansis, Aris Susanto, Untung Ayyenar, Bharathi Muthurajan, Raveendran Hirabayashi, Hideyuki Fukuta, Yoshimichi Kobayasi, Kazuhiro Matsui, Tsutomu Yoshimoto, Mayumi Htun, Than Myint |
| author_sort | Ishimaru, Tsutomu |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | An early-morning flowering (EMF) trait is supposed to be effective in enhancing grain yield due to mitigation of heat-induced spikelet sterility at flowering in rice. This study evaluated (i) phenotypic differences between a near-isogenic line carrying a QTL for EMF trait (designated as IR64 +qEMF3) and a recurrent parent, IR64, under wide variation in climates and (ii) whether the EMF trait can enhance grain yield under heat stress at flowering. IR64 +qEMF3 had significant earlier flower opening time (FOT) in diverse environmental conditions including temperate, subtropical, and tropical regions. FOT differentially responded to maximum and minimum air temperatures between genotypes. Under non-heat stress temperatures at flowering, IR64 +qEMF3 had similar grain yield to IR64 with minimal changes in yield components. Seven field trials in heat-vulnerable regions of Myanmar for multiple years showed that higher percentage of grain set contributed to the significantly higher grain yield in IR64 +qEMF3 when plants were exposed to daily maximum air temperatures around 36.1 °C or higher. Lower spikelet sterility in IR64 +qEMF3 was attributed to the earlier FOT during cooler early morning hours. This is the first field study that clearly demonstrates the enhancement of grain yield due to EMF trait under diverse heat stress field conditions at flowering. |
| format | Journal Article |
| id | CGSpace127164 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1271642025-10-26T13:02:06Z An early-morning flowering trait in rice can enhance grain yield under heat stress field conditions at flowering stage Ishimaru, Tsutomu Hlaing, Khin Thandar Oo, Ye Min Lwin, Tin Mg Sasaki, Kazuhiro Lumanglas, Patrick D. Simon, Eliza-Vie M. Myint, Tin Tin Hairmansis, Aris Susanto, Untung Ayyenar, Bharathi Muthurajan, Raveendran Hirabayashi, Hideyuki Fukuta, Yoshimichi Kobayasi, Kazuhiro Matsui, Tsutomu Yoshimoto, Mayumi Htun, Than Myint rice flowering grain phenotypes yields temperature An early-morning flowering (EMF) trait is supposed to be effective in enhancing grain yield due to mitigation of heat-induced spikelet sterility at flowering in rice. This study evaluated (i) phenotypic differences between a near-isogenic line carrying a QTL for EMF trait (designated as IR64 +qEMF3) and a recurrent parent, IR64, under wide variation in climates and (ii) whether the EMF trait can enhance grain yield under heat stress at flowering. IR64 +qEMF3 had significant earlier flower opening time (FOT) in diverse environmental conditions including temperate, subtropical, and tropical regions. FOT differentially responded to maximum and minimum air temperatures between genotypes. Under non-heat stress temperatures at flowering, IR64 +qEMF3 had similar grain yield to IR64 with minimal changes in yield components. Seven field trials in heat-vulnerable regions of Myanmar for multiple years showed that higher percentage of grain set contributed to the significantly higher grain yield in IR64 +qEMF3 when plants were exposed to daily maximum air temperatures around 36.1 °C or higher. Lower spikelet sterility in IR64 +qEMF3 was attributed to the earlier FOT during cooler early morning hours. This is the first field study that clearly demonstrates the enhancement of grain yield due to EMF trait under diverse heat stress field conditions at flowering. 2022-03 2023-01-16T08:44:47Z 2023-01-16T08:44:47Z Journal Article https://hdl.handle.net/10568/127164 en Limited Access Elsevier Ishimaru, Tsutomu, Khin Thandar Hlaing, Ye Min Oo, Tin Mg Lwin, Kazuhiro Sasaki, Lumanglas, P.D., Simon, E.-V.M. et al. 2022. An early-morning flowering trait in rice can enhance grain yield under heat stress field conditions at flowering stage. Field Crops Research 277:108400. |
| spellingShingle | rice flowering grain phenotypes yields temperature Ishimaru, Tsutomu Hlaing, Khin Thandar Oo, Ye Min Lwin, Tin Mg Sasaki, Kazuhiro Lumanglas, Patrick D. Simon, Eliza-Vie M. Myint, Tin Tin Hairmansis, Aris Susanto, Untung Ayyenar, Bharathi Muthurajan, Raveendran Hirabayashi, Hideyuki Fukuta, Yoshimichi Kobayasi, Kazuhiro Matsui, Tsutomu Yoshimoto, Mayumi Htun, Than Myint An early-morning flowering trait in rice can enhance grain yield under heat stress field conditions at flowering stage |
| title | An early-morning flowering trait in rice can enhance grain yield under heat stress field conditions at flowering stage |
| title_full | An early-morning flowering trait in rice can enhance grain yield under heat stress field conditions at flowering stage |
| title_fullStr | An early-morning flowering trait in rice can enhance grain yield under heat stress field conditions at flowering stage |
| title_full_unstemmed | An early-morning flowering trait in rice can enhance grain yield under heat stress field conditions at flowering stage |
| title_short | An early-morning flowering trait in rice can enhance grain yield under heat stress field conditions at flowering stage |
| title_sort | early morning flowering trait in rice can enhance grain yield under heat stress field conditions at flowering stage |
| topic | rice flowering grain phenotypes yields temperature |
| url | https://hdl.handle.net/10568/127164 |
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