@Article{phyton.2017.86.007,
AUTHOR = {Zúñiga-Mendoza E, LF Ceja-Torres},
TITLE = {<i>In vitro</i> antagonism of <i>Trichoderma harzianum</i> on <i>Sclerotium cepivorum</i> Berk. and <i>S. rolfsii</i> Sacc., causal agents of onion rot},
JOURNAL = {Phyton-International Journal of Experimental Botany},
VOLUME = {86},
YEAR = {2017},
NUMBER = {all},
PAGES = {7--13},
URL = {http://www.techscience.com/phyton/v86nall/36778},
ISSN = {1851-5657},
ABSTRACT = {<i>In vitro</i> tests were carried out, to evaluate the antagonist capacity of a strain of <i>Trichoderma</i> isolated from soil in La Cienega de Chapala, Michoacán, Mexico against <i>Sclerotium cepivorum</i> and <i>Sclerotium rolfsii</i>, casual agents of onion rot, an important disease in Mexico and the rest of the world. Percentages of radial growth inhibition (PRGI) were calculated every 24 h, until a rate of antagonism was obtained according to the Bell’s scale, as well as the percentages of inhibition of the production of sclerotia and their parasitism. The PRGI was 17.4% against <i>S. rolfsii</i> and 22.2% against <i>S. cepivorum</i> after 48 and 72 h, respectively. <i>Trichoderma harzianum</i> obtained a degree of antagonism of 1 on <i>S. cepivorum</i> and two against <i>S. rolfsii</i>, on the Bell scale. On the other hand, <i>T. harzianum</i> reduced (P≤0.05) 95% the production of sclerotia of <i>S. cepivorum</i> and 78% that of <i>S. rolfsii</i>; the parasitism of the sclerotia of <i>S. cepivorum</i> and <i>S. rolfsii</i> was 91% and 54%, respectively.},
DOI = {10.32604/phyton.2017.86.007}
}