Open Access

Table 1

Efficiency of seed treatment of sunflower variety R-453 with the laboratory samples of the microbiological preparations containing fungi or bacteria-producers against Phoma macdonaldii in lab conditions under artificial infection using a method of ‘agar blocks’

Variant Titer, CFU per g Biological efficiency, %
Control, without treatment - 76.2*
Fungi-producers
M-24 Penicillium sp. 7.8х109 73.8
Xk-1 Chaetomium olivaceum 4.0х107 67.2
T-2 Trichoderma sp. 2.8х109 60.6
Pbc-1 P. brevicompactum 9.0х109 60.6
Tt-1 Talaromyces trachispermus 6.8х107 60.6
Pr-1 Penicillium rugulosum 6.0х109 47.5
A-1 Basidiomycetes 5.4х107 47.5
Bacteria-producers
D-10 Bacillus sp. 3.8х1010 74.2
5-3 Bacillus sp. 3.0х1010 60.6
B-5 B. licheniformis 4.8х1010 60.6
B. polymyxa 5.4х1010 54.0
11-1 Bacillus sp. 2.0х1010 47.5
5B-1 B. subtilis 5.0х1010 41.2
K 1-2 Bacillus sp. 4.4х1010 41.2
Sgc-1 Pseudomonas sp. 2.8х1011 73.8
14-3 P. chlororaphis 3.0х1011 47.5
Oif 2-1 Pseudomonas sp. 1.8х1011 40.9

*Infection of sunflower seedlings with Phoma pathogen in control without treatment, distribution, %

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