Abstract
The efficiency of the biological control agent Trichoderma spp was tested against Phytophthora parasitica and Fusarium oxysporum in Roselle plants under field and greenhouse conditions. Under field conditions, three Trichoderma doses were applied to the base of the plant, and azoxystrobin and benomyl were applied at 30 and 60 days after planting. Also, 30 day-old plants were inoculated with 7 g of corncob/Trichoderma under greenhouse conditions, and inoculated with F. oxysporum and P. parasitica 3 or 4 days later. Field results showed that Trichoderma longibrachiatum-treated plants had 15% less incidence of black shank, and in one of the experiments, calyx dry weight was higher. Under greenhouse conditions, plants inoculated with Trichoderma gamsii and T. longibrachiatum had between 20 and 30% less incidence of F. oxysporum and P. parasitica, respectively. Both Trichoderma species increased fresh and dry plant weight, and T. gamsii also increased plant height. In general, T. gamsii and Trichoderma virens increased height, fresh and dry weight of Roselle plants infected with F. oxysporum. Key words: Trichoderma virens, Trichoderma longibrachiatum, Trichoderma asperellum, Trichoderma gamsii, Roselle.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
