Morphological Responses of Six Genotypes of Jatropha curcas L. (Euphorbiaceae) Subjected to Pruning, Manabí, Ecuador

Morphological Responses of Six Genotypes of Jatropha curcas L.

Authors

Keywords:

Adaptability; vegetative growth; agronomic management; improvement; yield.

Abstract

This study evaluated the effect of pruning on six genotypes of Jatropha curcas L. in Manabí, Ecuador. Twenty-four subplots were established in a 0.6 ha area, assessing 192 plants monthly to record height, stem diameter, number of branches, inflorescences, and fruits before and after pruning. Pruning significantly increased the number of branches and inflorescences, with Hybrid JAT 001165 showing the highest number of branches (27.9 on average) and CP 041-promising recording the most inflorescences (5.77). Additionally, stem diameter increased in all genotypes, with JAT 001165 reaching the highest value (11.91 cm). The highest fruit yield was recorded in JAT 001100 (737.3 fruits/plant), while CP 041-promising had the lowest (83.8 fruits/plant). In terms of height, JAT 001100 had the tallest average before pruning (222.72 cm), and JAT 001164 remained the tallest after pruning (206.64 cm). Pruning enhances vegetative and reproductive development in J. curcas, increasing branching, flowering, and stem diameter—key factors for productivity. However, responses vary by genotype, highlighting the importance of proper selection to maximize yield.

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Author Biographies

ALFREDO JIMÉNEZ GONZÁLEZ, State University of the South of Manabí

Doctor in Forest Sciences. Master in Agroecology and Sustainable Agriculture. Agricultural Engineer from the University of Pinar del Río, Cuba. Full-time Principal Professor. Accredited research professor certified by SENESCYT, ratified on January 19, 2023. 20 years of experience as a university professor.

Jonathan Efrén Avila Muñiz , State University of the South of Manabí

Forest Engineer. Degree in Forest Engineering. Master's in Sustainable Forest Management from the Graduate Institute of the Universidad Estatal del Sur de Manabí.

Ignacio Estévez Valdés, State University of the South of Manabí

1. Doctorate in Forest Sciences. December 2000. Universidad Hermanos Saiz Montes de Oca, Pinar del Río, Cuba.
2. Postdoctoral Studies in Optimization. 2000. Polytechnic University of Valencia, Spain. Optimization Techniques.
3. Master’s in Advanced Mathematics for Engineering. 1997. José Antonio Echevarría Higher Polytechnic Institute, Havana, Cuba.
4. Specialist in Advanced Mathematics. 1998. Polytechnic University of Valencia, Spain.
5. Bachelor’s Degree in Education with a Specialization in Mathematics. 1988. Higher Pedagogical Institute of Pinar del Río, Cuba.

Favio Leonardo Ruilova Narváez, National Institute of Agricultural Research. Department of Agroenergy.

Graduated as an Agricultural Engineer from the University of Cuenca in 2014. Joined as a thesis student at the Austro Experimental Station of the National Institute of Agricultural Research (INIAP-Ecuador) in 2012. In 2015, joined the Litoral Sur Experimental Station of INIAP-Ecuador as an Agricultural Researcher. Later, in 2016, moved to the Austro Experimental Station of INIAP-Ecuador as an Agricultural Researcher in the Maize Program. In 2018, was appointed as Head of the Maize Program. In 2020, joined the Portoviejo Experimental Station of INIAP-Ecuador as Head of the Agroenergy Program, becoming part of the research team that released the INIAP-402 La Roja castor bean variety. In 2022, became Head of the Plant Genetic Resources Department at EEP-INIAP. Currently, serves as Head of the Agroenergy, DENAREF, and Cassava-Sweet Potato Programs.

Enma Margarita Baquero Cárdenas, Inter-American Institute for Cooperation on Agriculture. Agribusiness and Commercialization

Doctor in Food Biochemistry from the Central University of Ecuador, with a Diploma in Social Development Entrepreneurship awarded by the Monterrey Institute of Technology and Higher Education, Mexico, and a Master’s in Local Community Development Management from the Pontifical Catholic University of Ecuador.

References

Adeniji, I. T., Togun, A. O., Adediran, J. A., Adeniji, A. M., Ogunwade, O. A., & Omenna, E. C. (2024). Growth and yield of Jatropha curcas L. as influenced by different regimes of apical bud removal. Sustainability, Agri, Food and Environmental Research, 12(2). Recuperado de https://doi.org/10.7770/safer-V12N2-art789

Aguirre-Medina, J. F., Yeekón-Méndez, L., & Espinosa-Zaragoza, S. (2019). Influencia de hongos endomicorrízicos en el crecimiento de (Tabebuia donnell-smithii Rose). Ecosistemas y Recursos Agropecuarios, 6(16), 11-21. Recuperado de https://www.scielo.org.mx/scielo.php?pid=S2007-90282019000100011&script=sci_arttext

Arunyanark, A., Tanya, P., Liangsakul, P., & Srinives, P. (2023a). Biomass productivity and wood chemical composition at different pruning ages of interspecific hybrid Jatropha. Agriculture and Natural Resources, 57(2), 353-362. Recuperado de https://li01.tci-thaijo.org/index.php/anres/article/view/259319

Arunyanark, A., Tanya, P., Liangsakul, P., & Srinives, P. (2023b). Genotype performance and relationship between leaf traits, biomass yield, and wood quality on interspecific hybrids of Jatropha. Agriculture and Natural Resources, 57(2), 309-320. Recuperado de https://www.cabidigitallibrary.org/doi/full/10.5555/20230235291

Arunyanark, A., Foytong, K., Jompuk, C., Srinives, P., & Tanya, P. (2023c). Yield productivity enhancement through reduced plant spacing and pruning tolerance of Jatropha hybrids. Agriculture and Natural Resources. Recuperado de https://www.researchsquare.com/article/rs-3511764/v1

Campuzano, L., Gualdrón, R., & Chávez, F. (2020). Desempeño productivo y adaptación de Jatropha curcas L. en tres ecorregiones en Colombia. Agronomía Mesoamericana, 31(2), 277-290. Recuperado de https://www.scielo.sa.cr/pdf/am/v31n2/2215-3608-am-31-02-00277.pdf

Cezario, L. F. C., Júnior, A. F. D., da Silva, Á. M., Santos, O. N. A., Ucella-Filho, J. G. M., de Paula Protásio, T., ... & Rousset, P. (2023). Irrigation in Jatropha curcas L. cultivation and its effect on biomass for bioenergy generation. Journal of Cleaner Production, 429, 139527. Recuperado de https://www.sciencedirect.com/science/article/abs/pii/S0959652623036855

García-Alonso, F., García-Pérez, E., Pérez-Vázquez, A., Martínez-Martínez, R., & Casanova-Pérez, L. (2023). Morphological and productive characterization of accessions of non-toxic Jatropha curcas L. in the central region of Veracruz. Revista Mexicana de Ciencias Agrícolas, 14(4), 507-518. Recuperado de https://www.scielo.org.mx/scielo.php?pid=S200709342023000400507&script=sci_arttext&tlng=en

Martin, M., & Montes, J. M. (2015). Quantitative genetic parameters of agronomic and quality traits in a global germplasm collection reveal excellent breeding perspectives for Jatropha curcas L. GCB Bioenergy, 7(6), 1335-1343. Recuperado de https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/gcbb.12227

Mehmood, A., & Rind, S. J. (2020). Rendimiento del motor y análisis de emisiones utilizando biodiésel de neem y Jatropha. La Granja: Revista de Ciencias de la Vida, 32(2), 19-32. Recuperado de https://doi.org/10.17163/lgr.n32.2020.02

Negussie, A., Degerickx, J., Norgrove, L., Achten, W. M., Hadgu, K. M., Aynekulu, E., & Muys, B. (2015). Effects of accession, spacing, and pruning management on in-situ leaf litter decomposition of Jatropha curcas L. in Zambia. Biomass and Bioenergy, 81, 505-513. Recuperado de https://edoc.unibas.ch/38825/1/20150902104223_55e6b66f6f8f3.pdf

Prakash, A. R. (2016). Development of Jatropha hybrids with enhanced growth, yield, and oil attributes suitable for semi-arid wastelands. Agroforestry Systems. Recuperado de https://link.springer.com/article/10.1007/s10457-015-9875-x

Tjeuw, J., Slingerland, M., & Giller, K. (2015). Relationships among Jatropha curcas seed yield and vegetative plant components under different management and cropping systems in Indonesia. Biomass and Bioenergy, 80, 128-139. Recuperado de https://www.sciencedirect.com/science/article/abs/pii/S0961953415001804

Published

2025-09-13

How to Cite

JIMÉNEZ GONZÁLEZ, A., Avila Muñiz , J. E. ., Estévez Valdés, I., Ruilova Narváez, F. L. ., & Baquero Cárdenas, E. M. (2025). Morphological Responses of Six Genotypes of Jatropha curcas L. (Euphorbiaceae) Subjected to Pruning, Manabí, Ecuador: Morphological Responses of Six Genotypes of Jatropha curcas L . UNESUM - Ciencias. Revista Científica Multidisciplinaria, 9(3). Retrieved from https://revistas.unesum.edu.ec/index.php/unesumciencias/article/view/911

Issue

Vol. 9 No. 3 (2025): Septiembre-Diciembre

Section

Artículo Originales

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Copyright (c) 2025 Alfredo Jimenez, Jonathan Avila Muñiz , Ignacio Estévez Valdés, Favio Ruilova Narváez, Margarita Baquero Cárdenas

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This work is licensed under a Creative Commons Attribution 4.0 International License.