Open Access

ARTICLE

Trichoderma spp. fostering growth on Capsicum chinense Jacq. seedlings and antagonistic against Meloidogyne incognita

by Candelero DJ, AJ Cristóbal, RA Reyes, SJM Tun, AMM Gamboa, SE Ruíz

1 Instituto Tecnológico de Conkal, Km. 16.3 antigua carretera Mérida-Motul, Conkal, Yucatán. C.P. 97345, México. Tel. 52 999 912 4135.
2 Centro de Investigación Científica de Yucatán, A.C. Calle 43 No. 130, Col. Chuburná de Hidalgo, Merida, Yucatan, Mexico. C.P. 97200. Tel. 52 999 981 39 23.

* Corresponding Author:Address Correspondence to: Dr. Jairo Cristóbal Alejo; e-mail:

Phyton-International Journal of Experimental Botany 2015, 84(1), 113-119. https://doi.org/10.32604/phyton.2015.84.113

Abstract

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 Th05-02 and Th27-08 showed the best significant effects on plant hight variable increments 55.57 and 47.62%, theTh07-04 with 29.48% more root length, theTh02-01 and Th07-04 isolates increased from 48.71 to 84.61% in volume radical and 53.40% of total dry biomass. Statistical analysis (p≤0.001) of Th43 and Th43-13-14 filtrates caused 100% mortality at 24 and 48h. In the test of reversibility to 24 h after replacing the filtrates Th43-13, Th43-14, 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.

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