Deep sowing of dry direct-seeded rice: cultivar differences in seedling establishment and grain yield
Dry direct seeding of rice (DDSR) is being increasingly used in water-scarce areas across Asia. When drought occurs, deep sowing may enable germinating seeds to utilize the residual moisture below the surface. Our objective was to examine the effects of different sowing depths on DDSR crop growth. T...
| Autores principales: | , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Informa UK Limited
2023
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/163952 |
| _version_ | 1855514284242501632 |
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| author | Kanno, Noriko Garcia, Ricardo Suralta, Roel R. Corales, Aurora M. Bueno, Crisanta S. Banayo, Niño P.M.C. Sta. Cruz, Pompe C. Kumar, Virender Kato, Yoichiro |
| author_browse | Banayo, Niño P.M.C. Bueno, Crisanta S. Corales, Aurora M. Garcia, Ricardo Kanno, Noriko Kato, Yoichiro Kumar, Virender Sta. Cruz, Pompe C. Suralta, Roel R. |
| author_facet | Kanno, Noriko Garcia, Ricardo Suralta, Roel R. Corales, Aurora M. Bueno, Crisanta S. Banayo, Niño P.M.C. Sta. Cruz, Pompe C. Kumar, Virender Kato, Yoichiro |
| author_sort | Kanno, Noriko |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Dry direct seeding of rice (DDSR) is being increasingly used in water-scarce areas across Asia. When drought occurs, deep sowing may enable germinating seeds to utilize the residual moisture below the surface. Our objective was to examine the effects of different sowing depths on DDSR crop growth. Two yield experiments, one in the Philippines and the other in Japan, were established in rainfed lowlands, but drought did not occur. Across the experiments, sowing at a depth of 6 to 7 cm reduced the percentage of emergence compared with sowing at a depth of 1 to 2 cm (25% vs. 73%), which resulted in lower yield (3.5 vs. 4.4 t ha−1). The relative yield (deep-sowing/shallow-sowing) was positively correlated with the percentage emergence under deep sowing. Cultivars with no significant yield reduction under deep sowing maintained high emergence (>30%) under deep sowing. Seedling’s ability to emerge after deep sowing greatly differed among cultivars: the percentage emergence ranging from 0% to 18% from a depth of 8 to 10 cm, and from 11% to 44% from a depth of 6 to 7 cm. An ancillary field experiment was conducted under drought during the dry season in the Philippines: deep sowing increased the percentage emergence compared with shallow sowing (41% vs. 5%), when the soil surface was severely dry. Our results suggest that choosing cultivars that can tolerate deep sowing is a prerequisite for using deep sowing in DDSR, and that future breeding of DDSR should focus on this tolerance. |
| format | Journal Article |
| id | CGSpace163952 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace1639522025-05-14T10:23:49Z Deep sowing of dry direct-seeded rice: cultivar differences in seedling establishment and grain yield Kanno, Noriko Garcia, Ricardo Suralta, Roel R. Corales, Aurora M. Bueno, Crisanta S. Banayo, Niño P.M.C. Sta. Cruz, Pompe C. Kumar, Virender Kato, Yoichiro direct seeding crop growth rate drought soil water content sowing depth tolerance water scarcity yields Dry direct seeding of rice (DDSR) is being increasingly used in water-scarce areas across Asia. When drought occurs, deep sowing may enable germinating seeds to utilize the residual moisture below the surface. Our objective was to examine the effects of different sowing depths on DDSR crop growth. Two yield experiments, one in the Philippines and the other in Japan, were established in rainfed lowlands, but drought did not occur. Across the experiments, sowing at a depth of 6 to 7 cm reduced the percentage of emergence compared with sowing at a depth of 1 to 2 cm (25% vs. 73%), which resulted in lower yield (3.5 vs. 4.4 t ha−1). The relative yield (deep-sowing/shallow-sowing) was positively correlated with the percentage emergence under deep sowing. Cultivars with no significant yield reduction under deep sowing maintained high emergence (>30%) under deep sowing. Seedling’s ability to emerge after deep sowing greatly differed among cultivars: the percentage emergence ranging from 0% to 18% from a depth of 8 to 10 cm, and from 11% to 44% from a depth of 6 to 7 cm. An ancillary field experiment was conducted under drought during the dry season in the Philippines: deep sowing increased the percentage emergence compared with shallow sowing (41% vs. 5%), when the soil surface was severely dry. Our results suggest that choosing cultivars that can tolerate deep sowing is a prerequisite for using deep sowing in DDSR, and that future breeding of DDSR should focus on this tolerance. 2023-04-03 2024-12-19T12:53:13Z 2024-12-19T12:53:13Z Journal Article https://hdl.handle.net/10568/163952 en Open Access Informa UK Limited Kanno, Noriko; Garcia, Ricardo; Suralta, Roel R.; Corales, Aurora M.; Bueno, Crisanta S.; Banayo, Niño P.M.C; Sta. Cruz, Pompe C.; Kumar, Virender and Kato, Yoichiro. 2023. Deep sowing of dry direct-seeded rice: cultivar differences in seedling establishment and grain yield. Plant Production Science, Volume 26 no. 2 p. 197-208 |
| spellingShingle | direct seeding crop growth rate drought soil water content sowing depth tolerance water scarcity yields Kanno, Noriko Garcia, Ricardo Suralta, Roel R. Corales, Aurora M. Bueno, Crisanta S. Banayo, Niño P.M.C. Sta. Cruz, Pompe C. Kumar, Virender Kato, Yoichiro Deep sowing of dry direct-seeded rice: cultivar differences in seedling establishment and grain yield |
| title | Deep sowing of dry direct-seeded rice: cultivar differences in seedling establishment and grain yield |
| title_full | Deep sowing of dry direct-seeded rice: cultivar differences in seedling establishment and grain yield |
| title_fullStr | Deep sowing of dry direct-seeded rice: cultivar differences in seedling establishment and grain yield |
| title_full_unstemmed | Deep sowing of dry direct-seeded rice: cultivar differences in seedling establishment and grain yield |
| title_short | Deep sowing of dry direct-seeded rice: cultivar differences in seedling establishment and grain yield |
| title_sort | deep sowing of dry direct seeded rice cultivar differences in seedling establishment and grain yield |
| topic | direct seeding crop growth rate drought soil water content sowing depth tolerance water scarcity yields |
| url | https://hdl.handle.net/10568/163952 |
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