Rafael Segura

Producción de banano libre de nematicidas: rol de ensilados con microbiota nativa en el manejo integral de nematodos

Jorge Luis Sandoval-Solís, Tatiana Zamora-Araya, Roddy Ortega-Bonilla, Rafael Segura

Durante seis años se llevó a cabo un experimento en una finca comercial con el objetivo de evaluar un manejo alternativo del nematodo barrenador (Radopholus similis). Se establecieron tres tratamientos: T1. Manejo convencional de finca. T2. Rotación de nematicidas + aplicación de …

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Determination of pollen viability and germination in banana (Musa acuminata) diploids under humid tropical conditions

Stivens Flores-Guillén, J. Sandoval, Édson Perito Amorim, Rafael Segura et autres

Genetic improvement of banana ( Musa acuminata ) is essential to overcome the challenges that limit its sustainable production, including critical diseases such as Fusarium tropical race 4 (Foc TR4) and Black Sigatoka caused by Pseudocercospora fijiensis . This study aimed to …

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Can pesticide applications to control black sigatoka of banana be reduced thanks to spatiotemporal strategies or economic incentives?

Loup Rimbaud, Béranger Decouture, Marta Zaffaroni, Jean‐François Rey et autres

National audience

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Using Artificial Intelligence (AI) to Combine Visible Near Infrared (Vis-NIR) Spectroscopy With Lab-Based Techniques for Predicting Nitrogen Levels in Leaves to Enhance Fertilizer Application in Banana Farming

José Antonio Guzmán-Álvarez, Michaela Kastanek, Roddy Ortega-Bonilla, Veda Obando-Bustos et autres

The current method for estimating fertilizer application for crops such as bananas involves removing a leaf or several leaves from the plant and sending them to a lab for chemical analysis. While this method is highly accurate, the process is slow and …

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Coberturas vivas para recuperar y mantener la calidad y la salud del suelo en la producción de banano (Musa AAA)

Edgar Valverde-Araya, Roddy Ortega-Bonilla, Miguel González-Zúñiga, Jorge Luis Sandoval-Solís et autres

El uso intensivo de agentes convencionales ha deteriorado los agroecosistemas bananeros, por lo que es una prioridad fomentar alternativas para mejorar la salud y calidad del suelo. Se establecieron áreas con manejo convencional y control mecánico de coberturas. Se evaluaron diferentes indicadores …

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Estado actual del mejoramiento genético en el cultivo del banano (Musa AAA, subgrupo Cavendish), y plátano (Musa AAB)

Juan P. Alvarado F., Rafael Segura

Se presenta información técnica y científica sobre el mejoramiento genético clásico y biotecnológico, aplicado a bananos y plátanos (Musa AA, BB, AAA, AAB). El objetivo de este estudio fue realizar una investigación de revisión crítica de literatura sobre el estado actual del …

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Induced resistance to Fusarium wilt of banana caused by Tropical Race 4 in Cavendish cv Grand Naine bananas after challenging with avirulent Fusarium spp.

Fernando A. García-Bastidas, Rafael Arango, Héctor A. Rodríguez-Cabal, Michael Seidl et autres

In the last century, Fusarium wilt of banana (FWB) destroyed the banana cultivar Gros Michel. The Cavendish cultivars saved the global banana industry, and currently they dominate global production (~50%) and the export trade (~95%). However, a new strain called Tropical Race …

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Aislamientos de Bacillus cereus sobre el crecimiento y el contenido de nitrógeno en banano (Musa AAA)

Rodya M. Ortega-Bonilla, Pedro E. Torres-Asuaje, Rafael Segura, Fabián Echeverría-Beirute et autres

Introduction. The plant growth-promoting rhizobacteria (PGPR) could be used as an alternative source to the use of conventional nitrogen fertilizers in banana (Musa AAA) cultivation. It is necessary to search for bacteria adapted to Costa Rican soil conditions and banana cultivation. Objective. …

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Molecular diversity of Radopholus similis (Cobb 1913) Thorne (1949) (Nematoda: Pratylenchidae) affecting banana from Costa Rica

Pedro E. Torres, Rafael Segura, J. Sandoval, Carolina Cantalapiedra‐Navarrete et autres

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The effect of soil properties on the relation between soil management and Fusarium wilt expression in Gros Michel bananas

Rafael Segura, J.J. Stoorvogel, J. Sandoval

Abstract Aims This study looks whether the response of soil management (liming and nitrogen fertilization) on the incidence of Fusarium wilt (Foc Race 1) in Gros Michel banana (Musa AAA) varies with different soil properties. Methods The effect of inoculation with Foc …

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A Medium-Term Field Experiment to Study the Effect of Managing Soil Chemical Properties on Fusarium Wilt in Banana (Musa AAA)

Rafael Segura, J.J. Stoorvogel, Fabio A. Blanco R., Jorge A. Sandoval F.

Fusarium oxysporum f. sp. cubense (Foc) is a soil-borne fungus causing Fusarium wilt (FW) in banana. It is practically impossible to eradicate Foc in soils. Our understanding of soil–Foc–banana interactions is hampered by inconsistent research results caused by agro-ecological variability and the …

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Evaluating the potential of soil management to reduce the effect of Fusarium oxysporum f. sp. cubense in banana (Musa AAA)

Rafael Segura, J.J. Stoorvogel, Fernando A. García-Bastidas, M. Salacinas-Niez et autres

Abstract Fusarium oxysporum f. sp. cubense (Foc) causes Fusarium wilt in banana (Musa AAA ). Foc Race 1 devastated the subgroup Gros Michel during the first half of the twentieth century. The Gros Michel was largely replaced by the resistant subgroup Cavendish …

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