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Phyton (Buenos Aires)

versión On-line ISSN 1851-5657


CANDELERO, DJ et al. Trichoderma spp. fostering growth on Capsicum chinense Jacq. seedlings and antagonistic against Meloidogyne incognita. Phyton (B. Aires) [online]. 2015, vol.84, n.1, pp.113-119. ISSN 1851-5657.

Fourteen native strains of Trichoderma spp. from wildand agricultural pathosystems in the state of Yucatan, Mexico, with growth-promoting ability of Capsicum chinense Jacq. seedlings were evaluated and antagonistic effect of their filtrate against second-stage juveniles (J2) of Meloidogyne incognita. The strains T05-02 and T27-08 showed the best significant effects on plant hight variable increments 55.57 and 47.62%, theT07-04 with 29.48% more root length, theT02-01 and T07-04 isolates increased from 48.71 to 84.61% in volume radical and 53.40% of total dry biomass. Statistical analysis (p=0.001) of T43 and T43-13-14 filtrates caused 100% mortality at 24 and 48h. In the test of reversibility to 24 h after replacing the filtrates T43-13, T43-14, TH09-06 and TH20-07 by sterile distilled water, the J2 did not recover their viability, so they were considered as the best potential strains of Trichoderma spp. with antagonistic capacity in J2 of M.incognita.

Palabras clave : Filtrates; Habanero chilli; In vitro; Knot-root.

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