Upland rice cultivar responses to row spacing and water stress across multiple environments
Upland rice (Oryza sativa L., UR) could be an option under soybean–maize crop rotation system. However, the recommended row spacing for UR (0.30 m) is shorter than that recommended for soybean and corn (0.40 m), limiting the use of UR in this rotation. We hypothesize that cultivar adaptation to wide...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Cambridge University Press
2017
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/77397 |
| _version_ | 1855537152507510784 |
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| author | Heinemann, Alexandre B. Ramírez Villegas, Julián Armando Nascente, Adriano Zeviani, Walmes Marques Stone, Luís Fernando Sentelhas, Paulo Cesar |
| author_browse | Heinemann, Alexandre B. Nascente, Adriano Ramírez Villegas, Julián Armando Sentelhas, Paulo Cesar Stone, Luís Fernando Zeviani, Walmes Marques |
| author_facet | Heinemann, Alexandre B. Ramírez Villegas, Julián Armando Nascente, Adriano Zeviani, Walmes Marques Stone, Luís Fernando Sentelhas, Paulo Cesar |
| author_sort | Heinemann, Alexandre B. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Upland rice (Oryza sativa L., UR) could be an option under soybean–maize crop rotation system. However, the recommended row spacing for UR (0.30 m) is shorter than that recommended for soybean and corn (0.40 m), limiting the use of UR in this rotation. We hypothesize that cultivar adaptation to wider than recommended row spacing and local environmental conditions harbour significant potential for overcoming the yield constraints of wider row spacing. We evaluated the row spacing effects on rice grain yield and their components in UR cultivars grown under different water deficit conditions. The experiments were designed as a randomized block in a split–split-plot scheme with sites (the cities of Santo Antônio de Goiás, Porangatu and Formoso) as main plots, row spacing (0.25, 0.35, 0.45 and 0.55 m) as the subplots and UR cultivars (one old and two modern genotypes) as the sub-subplots. We found that, in the less stressful environments, the modern cultivars, BRSMG Curinga and BRS Primavera, presented the highest grain yield. By contrast, in environments with moderate to intense water stress, the traditional cultivar, Douradão, presented the best performance, regardless of row spacing used. We conclude that UR is a viable option for soybean–maize rotation systems, as the UR cultivars tested presented no noticeable yield losses when sown with the same row spacing used for soybean and maize crops (0.40 m). In terms of impact, it can lead to an increase in UR cropped area in Brazil, and decrease in dependence on flooded rice harvested in the south of the country. |
| format | Journal Article |
| id | CGSpace77397 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace773972025-11-12T05:58:44Z Upland rice cultivar responses to row spacing and water stress across multiple environments Heinemann, Alexandre B. Ramírez Villegas, Julián Armando Nascente, Adriano Zeviani, Walmes Marques Stone, Luís Fernando Sentelhas, Paulo Cesar oryza sativa crop rotation yields drought stress panicles rotación de cultivos rendimiento estrés de sequia panicula Upland rice (Oryza sativa L., UR) could be an option under soybean–maize crop rotation system. However, the recommended row spacing for UR (0.30 m) is shorter than that recommended for soybean and corn (0.40 m), limiting the use of UR in this rotation. We hypothesize that cultivar adaptation to wider than recommended row spacing and local environmental conditions harbour significant potential for overcoming the yield constraints of wider row spacing. We evaluated the row spacing effects on rice grain yield and their components in UR cultivars grown under different water deficit conditions. The experiments were designed as a randomized block in a split–split-plot scheme with sites (the cities of Santo Antônio de Goiás, Porangatu and Formoso) as main plots, row spacing (0.25, 0.35, 0.45 and 0.55 m) as the subplots and UR cultivars (one old and two modern genotypes) as the sub-subplots. We found that, in the less stressful environments, the modern cultivars, BRSMG Curinga and BRS Primavera, presented the highest grain yield. By contrast, in environments with moderate to intense water stress, the traditional cultivar, Douradão, presented the best performance, regardless of row spacing used. We conclude that UR is a viable option for soybean–maize rotation systems, as the UR cultivars tested presented no noticeable yield losses when sown with the same row spacing used for soybean and maize crops (0.40 m). In terms of impact, it can lead to an increase in UR cropped area in Brazil, and decrease in dependence on flooded rice harvested in the south of the country. 2017-10 2016-10-25T18:32:07Z 2016-10-25T18:32:07Z Journal Article https://hdl.handle.net/10568/77397 en Open Access application/pdf Cambridge University Press Heinemann, Alexandre Bryan; Ramirez-Villegas, Julian; Nascente, Adriano Stephan; Zeviani, Walmes Marques; Stone, Luís Fernando; Sentelhas, Paulo Cesar. 2016. Upland rice cultivar responses to row spacing and water stress across multiple environments . Experimental Agriculture 1-18 p. |
| spellingShingle | oryza sativa crop rotation yields drought stress panicles rotación de cultivos rendimiento estrés de sequia panicula Heinemann, Alexandre B. Ramírez Villegas, Julián Armando Nascente, Adriano Zeviani, Walmes Marques Stone, Luís Fernando Sentelhas, Paulo Cesar Upland rice cultivar responses to row spacing and water stress across multiple environments |
| title | Upland rice cultivar responses to row spacing and water stress across multiple environments |
| title_full | Upland rice cultivar responses to row spacing and water stress across multiple environments |
| title_fullStr | Upland rice cultivar responses to row spacing and water stress across multiple environments |
| title_full_unstemmed | Upland rice cultivar responses to row spacing and water stress across multiple environments |
| title_short | Upland rice cultivar responses to row spacing and water stress across multiple environments |
| title_sort | upland rice cultivar responses to row spacing and water stress across multiple environments |
| topic | oryza sativa crop rotation yields drought stress panicles rotación de cultivos rendimiento estrés de sequia panicula |
| url | https://hdl.handle.net/10568/77397 |
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