USE OF CHEMICAL DRESSING AND POST-CULTURE LIQUIDS OF ANTAGONISTIC FUNGI IN THE PROTECTION OF RUNNER BEAN (Phaseolus coccineus L.) FROM SOIL-BORNE FUNGI

The paper establishes the effectiveness of Zaprawa Oxafun T (active substance: carboxin 37.5 % + tiuram 37.5 %) and the post-culture liquids of Trichoderma harzianum F 79 and Gliocladium catenulatum F 135 in the protection of runner bean against soil-borne fungi. Post-culture liquids of antagonistic fungi used for the pre-sowing seed dressing had a more positive effect on the number, healthiness and yielding of Phaseolus coccineus L. plants as compared with the chemical preparation. The seedlings, plants at anthesis and the seeds were mainly infected by Altenaria alternata, Botrytis cinerea, Fusarium spp., Rhizoctonia solani and Sclerotinia sclerotiorum. Those fungi were more rarely isolated from plants after the use of post-culture liquids of T. harzianum F 79 and G. catenulatum F 135 than after using Zaprawa Oxafun T or in the control combination, ie without any seed dressing. A reverse relation was observed in the case of the occurrence of saprobiotic fungi such as Gliocladium spp., Penicillium spp. and Trichoderma spp. The obtained results point out the possibility of using post-culture liquids of T. harzianum F 79 and G. catenulatum F 135 in the protection of runner bean against soil-borne fungi, as an alternative method to the chemical protection.