Adaptability and phenotypic stability of Early-Maturing Cowpea (Vigna unguiculata (L.) Walp.) lines in the Peruvian Amazon
This study evaluated the suitability of three floodplain environments near Iquitos for cowpea cultivar recommendation. It also estimated the adaptability and phenotypic stability of 12 cowpea lines evaluated in 2004 and compared the climatic conditions between 2004 and the period of 2020–2024. Field...
| Autores principales: | , , , , |
|---|---|
| Formato: | Preprint |
| Lenguaje: | Inglés |
| Publicado: |
Preprints.org
2025
|
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12955/2859 https://doi.org/10.20944/preprints202509.0228.v1 |
| _version_ | 1855490219950735360 |
|---|---|
| author | Gonzales Vega, Rodrigo Ticona Benavente, César Augusto Ramirez Chung, José Campos Cedano, Johnny Carlos Tejada Alvarado, José Jesús |
| author_browse | Campos Cedano, Johnny Carlos Gonzales Vega, Rodrigo Ramirez Chung, José Tejada Alvarado, José Jesús Ticona Benavente, César Augusto |
| author_facet | Gonzales Vega, Rodrigo Ticona Benavente, César Augusto Ramirez Chung, José Campos Cedano, Johnny Carlos Tejada Alvarado, José Jesús |
| author_sort | Gonzales Vega, Rodrigo |
| collection | Repositorio INIA |
| description | This study evaluated the suitability of three floodplain environments near Iquitos for cowpea cultivar recommendation. It also estimated the adaptability and phenotypic stability of 12 cowpea lines evaluated in 2004 and compared the climatic conditions between 2004 and the period of 2020–2024. Field trials were conducted using a randomized complete block design with 12 treatments and two replications. Five traits were assessed: grain yield, number of pods per plant, days to flowering, days to physiological maturity, and days to harvest. Combined ANOVA revealed significant environmental effects for all traits. Analyses using Duncan’s means test, GGE biplot, and AMMI indicated that the three sites are contrasting. The Annicchiarico index, GGE biplot, and AMMI analyses identified line CAR 3010 as having superior adaptability and stability. Paired t-tests showed that the conditions in 2020-2024 were warmer and drier than those in 2004. Therefore, Muyuy, Rafael Belaunde, and San Miguel are suitable locations for testing new cowpea lines, and CAR 3010 line is recommended for inclusion in cowpea breeding programs in the Peruvian Amazon in response to ongoing climate change. |
| format | Preprint |
| id | INIA2859 |
| institution | Institucional Nacional de Innovación Agraria |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Preprints.org |
| publisherStr | Preprints.org |
| record_format | dspace |
| spelling | INIA28592025-09-17T14:34:15Z Adaptability and phenotypic stability of Early-Maturing Cowpea (Vigna unguiculata (L.) Walp.) lines in the Peruvian Amazon Gonzales Vega, Rodrigo Ticona Benavente, César Augusto Ramirez Chung, José Campos Cedano, Johnny Carlos Tejada Alvarado, José Jesús GxE interaction Yield stability Annicchiarico index GGE biplot AMMI Tropical agriculture Multienvironmental trials Interacción GxE Estabilidad del rendimiento Índice de Annicchiarico Biplot GGE Agricultura tropical Ensayos multiambientales https://purl.org/pe-repo/ocde/ford#4.01.01 Caupí; Cowpeas; Vigna unguiculata; Vigna unguiculata; Rendimiento de cultivos; Crop yield; Río Amazonas; Amazon River; Leguminosa; Legumes This study evaluated the suitability of three floodplain environments near Iquitos for cowpea cultivar recommendation. It also estimated the adaptability and phenotypic stability of 12 cowpea lines evaluated in 2004 and compared the climatic conditions between 2004 and the period of 2020–2024. Field trials were conducted using a randomized complete block design with 12 treatments and two replications. Five traits were assessed: grain yield, number of pods per plant, days to flowering, days to physiological maturity, and days to harvest. Combined ANOVA revealed significant environmental effects for all traits. Analyses using Duncan’s means test, GGE biplot, and AMMI indicated that the three sites are contrasting. The Annicchiarico index, GGE biplot, and AMMI analyses identified line CAR 3010 as having superior adaptability and stability. Paired t-tests showed that the conditions in 2020-2024 were warmer and drier than those in 2004. Therefore, Muyuy, Rafael Belaunde, and San Miguel are suitable locations for testing new cowpea lines, and CAR 3010 line is recommended for inclusion in cowpea breeding programs in the Peruvian Amazon in response to ongoing climate change. 2025-09-17T14:34:14Z 2025-09-17T14:34:14Z 2025-09-03 info:eu-repo/semantics/preprint Gonzales, R., Ticona-Benavente, C. A., Ramirez-Chung, J., Campos-Cedano, J., & Tejada-Alvarado, J. J. (2025). Adaptability and phenotypic stability of early-maturing cowpea (Vigna unguiculata (L.) Walp.) lines in the Peruvian Amazon. Preprints. https://doi.org/10.20944/preprints202509.0228.v1 http://hdl.handle.net/20.500.12955/2859 https://doi.org/10.20944/preprints202509.0228.v1 eng Preprints.org info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ application/pdf application/pdf Preprints.org CH Instituto Nacional de Innovación Agraria Repositorio Institucional - INIA |
| spellingShingle | GxE interaction Yield stability Annicchiarico index GGE biplot AMMI Tropical agriculture Multienvironmental trials Interacción GxE Estabilidad del rendimiento Índice de Annicchiarico Biplot GGE Agricultura tropical Ensayos multiambientales https://purl.org/pe-repo/ocde/ford#4.01.01 Caupí; Cowpeas; Vigna unguiculata; Vigna unguiculata; Rendimiento de cultivos; Crop yield; Río Amazonas; Amazon River; Leguminosa; Legumes Gonzales Vega, Rodrigo Ticona Benavente, César Augusto Ramirez Chung, José Campos Cedano, Johnny Carlos Tejada Alvarado, José Jesús Adaptability and phenotypic stability of Early-Maturing Cowpea (Vigna unguiculata (L.) Walp.) lines in the Peruvian Amazon |
| title | Adaptability and phenotypic stability of Early-Maturing Cowpea (Vigna unguiculata (L.) Walp.) lines in the Peruvian Amazon |
| title_full | Adaptability and phenotypic stability of Early-Maturing Cowpea (Vigna unguiculata (L.) Walp.) lines in the Peruvian Amazon |
| title_fullStr | Adaptability and phenotypic stability of Early-Maturing Cowpea (Vigna unguiculata (L.) Walp.) lines in the Peruvian Amazon |
| title_full_unstemmed | Adaptability and phenotypic stability of Early-Maturing Cowpea (Vigna unguiculata (L.) Walp.) lines in the Peruvian Amazon |
| title_short | Adaptability and phenotypic stability of Early-Maturing Cowpea (Vigna unguiculata (L.) Walp.) lines in the Peruvian Amazon |
| title_sort | adaptability and phenotypic stability of early maturing cowpea vigna unguiculata l walp lines in the peruvian amazon |
| topic | GxE interaction Yield stability Annicchiarico index GGE biplot AMMI Tropical agriculture Multienvironmental trials Interacción GxE Estabilidad del rendimiento Índice de Annicchiarico Biplot GGE Agricultura tropical Ensayos multiambientales https://purl.org/pe-repo/ocde/ford#4.01.01 Caupí; Cowpeas; Vigna unguiculata; Vigna unguiculata; Rendimiento de cultivos; Crop yield; Río Amazonas; Amazon River; Leguminosa; Legumes |
| url | http://hdl.handle.net/20.500.12955/2859 https://doi.org/10.20944/preprints202509.0228.v1 |
| work_keys_str_mv | AT gonzalesvegarodrigo adaptabilityandphenotypicstabilityofearlymaturingcowpeavignaunguiculatalwalplinesintheperuvianamazon AT ticonabenaventecesaraugusto adaptabilityandphenotypicstabilityofearlymaturingcowpeavignaunguiculatalwalplinesintheperuvianamazon AT ramirezchungjose adaptabilityandphenotypicstabilityofearlymaturingcowpeavignaunguiculatalwalplinesintheperuvianamazon AT camposcedanojohnnycarlos adaptabilityandphenotypicstabilityofearlymaturingcowpeavignaunguiculatalwalplinesintheperuvianamazon AT tejadaalvaradojosejesus adaptabilityandphenotypicstabilityofearlymaturingcowpeavignaunguiculatalwalplinesintheperuvianamazon |