1. Respuesta de once genotipos de frijol común (Phaseolus vulgaris) a poblaciones crecientes de Meloidogyne incognita.
- Author
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Hernandez-Ochandía, Daine, Enrique Regalado, Roberto, Miranda Cabrera, Ileana, and Rodríguez Hernández, Mayra G.
- Subjects
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CATTLE manure , *BLACK bean , *TOMATOES , *ORGANIC fertilizers , *SOUTHERN root-knot nematode - Abstract
Objetive. Establish the host capacity of eleven most widespread black bean cultivars in the Mayabeque province and determine their tolerance limit. Materials and methods. For the preparation of the inoculum, tomato roots (Solanum lycopersicum L., var Cambell-28) infested with Meloidogyne incognita were used. Pots with a capacity of 1 kg were used with a mixture of eutric ferrasol soil and cow manure as organic fertilizer (in a 1:1 ratio). Seven treatments and one control (without inoculation) were established; the population levels were 0.125; 0.25; 1; 4; 16 and 64 J2 per gram of soil. The reproduction factors (FR) and reproduction index (RI) of each genotype were calculated, evaluating the resistance and the effect of population densities of the nematode on the leaf mass of each genotype evaluated. The data were processed through the R statistical package and graphed. Results. It was verified that the cultivars BAT304, BAT-306, CUFIG-48, CUL-156, Tomeguin-93, PL-8, P-248-1, Caujeri-2170, Milagro Villareño and Güira-89, were susceptible to M. incognita (FR≥1), while Triunfo-70 was resistant. BAT-306, had the lowest Tolerance Limit (LT) (0.002 J2 /g of soil and Triunfo-70 the highest (0.75). The greatest loss of leaf mass (85%) was achieved by BAT-306 and the lowest Triunfo- 70 (20%). Conclusion. The cultivars CUFIG-48, CUL-156, Tomeguin-93, PL-8, P-248-1, Caujeri-2170, Milagro Villareño and Guira-89 were susceptible to M. incognita. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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