Embryological studies in Coffea arabica L
Studies on fruit development from flower bud formation and with special reference to bean development are presented in Coffea arabica cultivar 'Kents' and in the selections $228 3 5795 grown at the Central Coffee Research Institute, located in the southwestern coffee growing belt of India. The orien...
| Main Authors: | , |
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| Format: | Artículo |
| Language: | Inglés |
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Instituto Interamericano de Ciencias Agrícolas (IICA)
2025
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| Online Access: | https://repositorio.catie.ac.cr/handle/11554/13678 |
| _version_ | 1855489278281252864 |
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| author | Vishveshwara, S. Chinnappa, C.C. |
| author_browse | Chinnappa, C.C. Vishveshwara, S. |
| author_facet | Vishveshwara, S. Chinnappa, C.C. |
| author_sort | Vishveshwara, S. |
| collection | Repositorio CATIE |
| description | Studies on fruit development from flower bud formation and with special reference to bean development are presented in Coffea arabica cultivar 'Kents' and in the selections $228 3 5795 grown at the Central Coffee Research Institute, located in the southwestern coffee growing belt of India. The orientation and nature of the ovules in the pre-flowering period (megasporogenesis), which is initiated in response to 'flowering rains', have been found to be similar to previous reports of such occurrences in C. arabica. The way in which ovules develop into the characteristic size and shape of mature coffee beans has been followed in detail and the ovule as an enclosed whole within the stalk has been found to contribute to this.
The multilocular or multi-ovular condition (false polyembryony, polyspermy) is related to the formation of more than one locule and the initiation of more than one ovule respectively. However, the development of the ovule and endosperm remains the same as that of a normal ovule. The difference in size and shape obtained in these cases is related to the nature and number of ovules that reach maturity and the competition for space in the fruit. The result of the multilocular condition is triangular seeds, while the multiovular condition produces giant seeds or holes
In cases of true polyembryony, two separate or united endosperms in the same ovule have been reported. The various types of polyembryony observed are currently being considered, along with previous cases in C. arabica, and a reclassification has been suggested. The significance of the multiovular condition in C. arabica from the phylogenetic point of view in Rubiaceae and from the genetics and breeding of plants in experimental selections is also discussed. |
| format | Artículo |
| id | RepoCATIE13678 |
| institution | Centro Agronómico Tropical de Investigación y Enseñanza |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Instituto Interamericano de Ciencias Agrícolas (IICA) |
| publisherStr | Instituto Interamericano de Ciencias Agrícolas (IICA) |
| record_format | dspace |
| spelling | RepoCATIE136782025-08-19T22:51:49Z Embryological studies in Coffea arabica L Vishveshwara, S. Chinnappa, C.C. Coffea arabica||Coffea arabica||Coffea arabica||Coffea arabica Flora||flora||flora||flore Fruta||fruits||fruta||fruits Poliembrionia||polyembryony||poliembrionia||polyembryonie Histología||histology||undefined||histologie Citología||cytology||Citologia||cytologie Etapa de desarrollo de la planta||plant developmental stages||fase de desenvolvimento da planta||stade de développement végétal Trastorno genético||genetic disorders||distúrbio genético||trouble génétique Sede Central Studies on fruit development from flower bud formation and with special reference to bean development are presented in Coffea arabica cultivar 'Kents' and in the selections $228 3 5795 grown at the Central Coffee Research Institute, located in the southwestern coffee growing belt of India. The orientation and nature of the ovules in the pre-flowering period (megasporogenesis), which is initiated in response to 'flowering rains', have been found to be similar to previous reports of such occurrences in C. arabica. The way in which ovules develop into the characteristic size and shape of mature coffee beans has been followed in detail and the ovule as an enclosed whole within the stalk has been found to contribute to this. The multilocular or multi-ovular condition (false polyembryony, polyspermy) is related to the formation of more than one locule and the initiation of more than one ovule respectively. However, the development of the ovule and endosperm remains the same as that of a normal ovule. The difference in size and shape obtained in these cases is related to the nature and number of ovules that reach maturity and the competition for space in the fruit. The result of the multilocular condition is triangular seeds, while the multiovular condition produces giant seeds or holes In cases of true polyembryony, two separate or united endosperms in the same ovule have been reported. The various types of polyembryony observed are currently being considered, along with previous cases in C. arabica, and a reclassification has been suggested. The significance of the multiovular condition in C. arabica from the phylogenetic point of view in Rubiaceae and from the genetics and breeding of plants in experimental selections is also discussed. 2025-08-18T19:45:16Z 2025-08-18T19:45:16Z 1965-10-01 Artículo https://repositorio.catie.ac.cr/handle/11554/13678 openAccess en Turrialba Vol. 15, no. 4 10 application/pdf Instituto Interamericano de Ciencias Agrícolas (IICA) |
| spellingShingle | Coffea arabica||Coffea arabica||Coffea arabica||Coffea arabica Flora||flora||flora||flore Fruta||fruits||fruta||fruits Poliembrionia||polyembryony||poliembrionia||polyembryonie Histología||histology||undefined||histologie Citología||cytology||Citologia||cytologie Etapa de desarrollo de la planta||plant developmental stages||fase de desenvolvimento da planta||stade de développement végétal Trastorno genético||genetic disorders||distúrbio genético||trouble génétique Sede Central Vishveshwara, S. Chinnappa, C.C. Embryological studies in Coffea arabica L |
| title | Embryological studies in Coffea arabica L |
| title_full | Embryological studies in Coffea arabica L |
| title_fullStr | Embryological studies in Coffea arabica L |
| title_full_unstemmed | Embryological studies in Coffea arabica L |
| title_short | Embryological studies in Coffea arabica L |
| title_sort | embryological studies in coffea arabica l |
| topic | Coffea arabica||Coffea arabica||Coffea arabica||Coffea arabica Flora||flora||flora||flore Fruta||fruits||fruta||fruits Poliembrionia||polyembryony||poliembrionia||polyembryonie Histología||histology||undefined||histologie Citología||cytology||Citologia||cytologie Etapa de desarrollo de la planta||plant developmental stages||fase de desenvolvimento da planta||stade de développement végétal Trastorno genético||genetic disorders||distúrbio genético||trouble génétique Sede Central |
| url | https://repositorio.catie.ac.cr/handle/11554/13678 |
| work_keys_str_mv | AT vishveshwaras embryologicalstudiesincoffeaarabical AT chinnappacc embryologicalstudiesincoffeaarabical |