Reacción de variedades de frijol común a Fusarium spp. y Rhizoctonia solani en el altiplano de México.

Navarrete-Maya, Rosa; Acosta-Gallegos, Jorge Alberto

doi:10.15517/am.v10i1.17996

Cited by 10 publications

(6 citation statements)

References 5 publications

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“…The germination percentage was obtained multiplying the number of germinated seeds/number of seeds sown by 100 (Prado-Urbina et al, 2015). Disease incidence was calculated according to the formula proposed by Van der Plank in 1975(Navarrete-Maya et al, 2009: number of affected plants/number of total plants multiplied by 100. The percentage of survival was calculated based on the number of surviving plants/ number of germinated seeds multiplied by 100 (Cóbar-Carranza et al, 2015).…”

Section: Experiments Response Variablesmentioning

confidence: 99%

Emergence and growth of huacle chili seedlings (Capsicum annuum L.) with the use of biological formulations in commercial plot soil.

Hernandez Rosas,

Hernández-Rosas,

Schettino-Salomón

et al. 2023

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Objective: To evaluate the effect of biological control agents (BCA) and two biological formulations (Bio-Terra and Bio-CNPR) against the phytopathogens found in the soil of huacle chili (Capsicum annuum) plantations, in order to obtain healthy seedlings. Design/Methodology/Approach: The following design variables were evaluated: germination (%), disease incidence (%), and survival (%). Stem height and root length were also evaluated. The experimental unit was a tray with n=30 seedlings per each treatments (T0, T1, T2, T3, and T4) and four repetitions. An analysis of variance (ANOVA) was used. Tukey’s mean test was applied (using the Minitab Statistical program version 20.0) in units that presented differences (p≤0.05). Results: The phytopathogenic microorganism Fusarium spp. was isolated from the soil of the plots cultivated with huacle chili. The T1 treatment recorded the best inhibitory effect against Fusarium spp.: it had 92.2% germination, 18.3% incidence of Fusarium spp., and 82% surviving seedlings (with an average height of 16 cm and a root length of 7.9 cm). The sterilization of the soil lead to T4 having the best results in germination, incidence, and survival, since Fusarium spp. did not damage huacle chili seedlings. In contrast, T0 did not prosper neither with BCA nor with biological products, since all the seedlings in non-sterile soil died. Study Limitations/Implications: A plastic barrier was placed between the trays with the chili seedlings to avoid cross-contamination between treatments. Findings/Conclusions: T1 (the BCA with nitrogen-fixing bacteria and B. subtilis) recorded the best counteracting results against the damage generated by Fusarium spp. Their antagonism allowed a high percentage of survival of huacle chili seedlings and encouraged plant development through the best root growth and height of the seedlings.

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Section: Experiments Response Variablesmentioning

confidence: 99%

Emergence and growth of huacle chili seedlings (Capsicum annuum L.) with the use of biological formulations in commercial plot soil.

Hernandez Rosas,

Hernández-Rosas,

Schettino-Salomón

et al. 2023

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“…Previous works indicated us that soils of Chapingo and Sandovales are highly, naturally and homogeneously infested in most cases by FSP [12,13]. We divided the characterizations into two groups.…”

Section: Reactions Of Common Bean Germplasm To Root Rot Pathogens Undmentioning

confidence: 99%

Analysis of Fusarium-Common Beans Pathosystem in Aguascalientes, Mexico

Padilla-Ramírez¹,

Ochoa‐Márquez²,

RigobertoRosales-Serna³

et al. 2018

Fusarium - Plant Diseases, Pathogen Diversity, Genetic Diversity, Resistance and Molecular Markers

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In Mexico, high incidences of Fusarium affect common bean (Phaseolus vulgaris L.) production, reducing grain yields due to seedling death and crop standing reductions. Production of resistant germplasm could be an appropriate strategy for grain yield increasing. Bean breeding programs need the former analysis of plant-pathogen pathosystem to perform the selection of segregating populations with improved resistance to root rot pathogens and the best agroecosystem adaptation. Here, we report our results on characterization of genetic variability patterns of Fusarium solani f. sp. phaseoli (FSP) from Aguascalientes, México; the analysis of P. vulgaris germplasm reactions to highly and naturally FSP-infested field and controlled conditions; and the identification of genetic basis of resistance to FSP root rot in segregating common bean populations. Significant genetic variability in FSP isolates from Aguascalientes and other regions of México was found. Also, we found high variation on reactions to FSP root rots, resistance was more frequent on black seed-coated beans, and susceptibility was common in pinto beans. Resistance to FSP in BAT 477 seedlings was associated with one quantitative trait loci (QTL).

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“…observed, as in the case of other crops (Navarrete and Acosta, 1999), we designed a scale of severity to evaluate the damage of P. capsici in chayote plants in growth chambers under controlled conditions. The pathogenicity evaluation test was set up on three occasions with similar results.…”

Section: Análisis Estadísticomentioning

confidence: 99%

Severidad de una cepa de Phytophthora capsici en plantas de chayote Sechium edule a nivel de cámara de crecimiento

Andrade-Luna

Espinosa-Victoria

GÃ3mez-RodrÃguez

et al. 2017

RMF

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Se determinó la severidad de Phytophthora capsicien plantas de chayote y se propuso una escala de severidad, dada su reciente confirmación como agente causal de enfermedad. Se muestrearon plantas con síntomas de marchitez en dos huertos comerciales de chayote en Huatusco, Veracruz, México. El oomiceto aislado, a partir de frutos y tallos, fue caracterizado morfológica y molecularmente e identificado como P. capsici. Plantas de chayote desarrolladas en cámara de crecimiento fueron inoculadas con 1, 3 y 6 x 105 zoosporas 15 días después de la siembra. Se evaluaron la necrosis de la zona de transición entre el tallo y la raíz, el porcentaje de hojas marchitas y la marchitez de la planta. A los tres días después de la inoculación (ddi) se observó de 2.3 a 3.0 cm de longitud de la necrosis y 50 % de hojas marchitas. A los cinco ddi, la necrosis fue de 2.5 a 3.15 cm y 80 % de hojas marchitas. A los siete ddi, la necrosis fue de 2.67 a 3.3 cm con 100 % de hojas marchitas (planta muerta). Con base en los síntomas observados, se diseñó una escala de severidad para evaluar el avance del daño de P. capsicien plantas de chayote bajo condiciones controladas.

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Reacción de variedades de frijol común a Fusarium spp. y Rhizoctonia solani en el altiplano de México.

Cited by 10 publications

References 5 publications

Emergence and growth of huacle chili seedlings (Capsicum annuum L.) with the use of biological formulations in commercial plot soil.

Emergence and growth of huacle chili seedlings (Capsicum annuum L.) with the use of biological formulations in commercial plot soil.

Analysis of Fusarium-Common Beans Pathosystem in Aguascalientes, Mexico

Severidad de una cepa de Phytophthora capsici en plantas de chayote Sechium edule a nivel de cámara de crecimiento

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