Relationship between growth traits and yield formation in Indica-type rice crop
Introduction. Climatic variation is one of the causes for the decrease in yield and its variability in Indica-type rice (Oryza sativa L.). This evidences the necessity of the study of the interaction of meteorological variables with the behavior of rice cultivars, to establish the base of management...
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| Format: | Article |
| Language: | Spanish |
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Universidad de Costa Rica
2019-01-01
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| Series: | Agronomía Mesoamericana |
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| Online Access: | https://revistas.ucr.ac.cr/index.php/agromeso/article/view/29671 |
| _version_ | 1819011620433559552 |
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| author | Lazaro Alberto Maqueira López |
| author_facet | Lazaro Alberto Maqueira López |
| author_sort | Lazaro Alberto Maqueira López |
| collection | DOAJ |
| description | Introduction. Climatic variation is one of the causes for the decrease in yield and its variability in Indica-type rice (Oryza sativa L.). This evidences the necessity of the study of the interaction of meteorological variables with the behavior of rice cultivars, to establish the base of management of the harvest and increase of the yield. Objective. The objective of the present study was to relate the yield of rice with variables of plant growth. Materials and methods. Four rice cultivars were planted in the “dry” season of December 2004, February 2005 and January 2006, and in the rainy season of March 2006, April 2008 and 2009, in Los Palacios, Pinar del Río province, Cuba. The yield and its components, the dynamics of plant growth (LAI and dry matter), the variation of the dry matter of the internodes, peduncle, flag leaf, leaf and leaf sheath during the grain filling phase were evaluated the panicle growth in addition to the meteorological data. A multivariate analysis was used to relate the performance to the characteristics of the plants evaluated. Results. The yield was higher in the “dry” season and to obtain higher yields, the growth dynamics of the plant and the variation of the dry matter of the third internode during the grain filling were important. In both seasons, different source-sink relationships were established and these situations depended mainly on the temperature regime at which the plants were subjected. Conclusion. Breeders, in order to increase potencial yields, may fows their atttention in grow traits during vegetative stages. |
| first_indexed | 2024-12-21T01:31:03Z |
| format | Article |
| id | doaj.art-f718402a533d4e0a9b9db4302dd2fc44 |
| institution | Directory Open Access Journal |
| issn | 2215-3608 |
| language | Spanish |
| last_indexed | 2024-12-21T01:31:03Z |
| publishDate | 2019-01-01 |
| publisher | Universidad de Costa Rica |
| record_format | Article |
| series | Agronomía Mesoamericana |
| spelling | doaj.art-f718402a533d4e0a9b9db4302dd2fc442022-12-21T19:20:23ZspaUniversidad de Costa RicaAgronomía Mesoamericana2215-36082019-01-017910010.15517/am.v30i1.2967129671Relationship between growth traits and yield formation in Indica-type rice cropLazaro Alberto Maqueira LópezIntroduction. Climatic variation is one of the causes for the decrease in yield and its variability in Indica-type rice (Oryza sativa L.). This evidences the necessity of the study of the interaction of meteorological variables with the behavior of rice cultivars, to establish the base of management of the harvest and increase of the yield. Objective. The objective of the present study was to relate the yield of rice with variables of plant growth. Materials and methods. Four rice cultivars were planted in the “dry” season of December 2004, February 2005 and January 2006, and in the rainy season of March 2006, April 2008 and 2009, in Los Palacios, Pinar del Río province, Cuba. The yield and its components, the dynamics of plant growth (LAI and dry matter), the variation of the dry matter of the internodes, peduncle, flag leaf, leaf and leaf sheath during the grain filling phase were evaluated the panicle growth in addition to the meteorological data. A multivariate analysis was used to relate the performance to the characteristics of the plants evaluated. Results. The yield was higher in the “dry” season and to obtain higher yields, the growth dynamics of the plant and the variation of the dry matter of the third internode during the grain filling were important. In both seasons, different source-sink relationships were established and these situations depended mainly on the temperature regime at which the plants were subjected. Conclusion. Breeders, in order to increase potencial yields, may fows their atttention in grow traits during vegetative stages.https://revistas.ucr.ac.cr/index.php/agromeso/article/view/29671internodesinternodesinternodesdry matterdry matterdry matterseed dillingseed dillingseed dillingstarchy cropsstarchy cropsstarchy crops |
| spellingShingle | Lazaro Alberto Maqueira López Relationship between growth traits and yield formation in Indica-type rice crop Agronomía Mesoamericana internodes internodes internodes dry matter dry matter dry matter seed dilling seed dilling seed dilling starchy crops starchy crops starchy crops |
| title | Relationship between growth traits and yield formation in Indica-type rice crop |
| title_full | Relationship between growth traits and yield formation in Indica-type rice crop |
| title_fullStr | Relationship between growth traits and yield formation in Indica-type rice crop |
| title_full_unstemmed | Relationship between growth traits and yield formation in Indica-type rice crop |
| title_short | Relationship between growth traits and yield formation in Indica-type rice crop |
| title_sort | relationship between growth traits and yield formation in indica type rice crop |
| topic | internodes internodes internodes dry matter dry matter dry matter seed dilling seed dilling seed dilling starchy crops starchy crops starchy crops |
| url | https://revistas.ucr.ac.cr/index.php/agromeso/article/view/29671 |
| work_keys_str_mv | AT lazaroalbertomaqueiralopez relationshipbetweengrowthtraitsandyieldformationinindicatypericecrop |