Table 3: Morphological and physiological indicators in leaves of tomato plants, variety Chaika, infected with bacterial canker and pre-treated with cell suspensions of PGPB.

Indicators Healthy Plants Infected Plants Treatment of Plants Before
Infection
Pseudomonas Fluo-rescens Bacillus
subtilis
Azotobac-ter chro-ococcum
Specific surface density of a leaf, mg/sm2 4.78±
0.18
4.05±
0.14¤
5.58±
0.24*¥
5.88±
0.22*¥
5.74±
0.24*¥
Total chlorophyll а+b, mg/g 2.23±
0.05
1.88±
0.02¤
2.91±
0.05*¥
4.1±
0.09*¥
3.56±
0.08*¥
Carotenoids k, mg/g 0.83±
0.03
0.65±
0.03¤
1.13±
0.04*¥
1.31±
0.08*¥
1.21±
0.03*¥
Total chlorophyll а+b/k 2.69±
0.04
2.5±
0.03¤
3.06±
0.03*¥
3.13±
0.03*¥
3.21±
0.04*¥
Chlorophylline index, g/m2 1.31±
0.06
1.12±
0.04¤
1.52±
0.04*¥
1.58±
0.05*¥
1.6±
0.03*¥
Net productivity of photosynthesis, g/m2•day 8.75±
0.32
7.6±
0.24¤
13.2±
0.42*¥
14.2±
0.36*¥
13.8±
0.34*¥

* ‒ statistically significant differences between the infected plants and PGPB pre-treated plants (p<0.05), ¥ ‒ statistically significant differences between the healthy plants and PGPB pre-treated plants (p<0.05), ¤ ‒ statistically significant differences between the infected plants and the healthy plants.