Evaluation of the bacteria formulation different inoculum densities on growth and development of Euphorbia pulcherrima
| 10 wrz 2020
O artykule
Article Category: Research Article
Data publikacji: 10 wrz 2020
Zakres stron: 179 - 188
Otrzymano: 30 mar 2020
Przyjęty: 14 sie 2020
DOI: https://doi.org/10.2478/fhort-2020-0017
Słowa kluczowe
© 2020 Fazilet Parlakova Karagöz, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Figure 1
Figure 2
Bacterial isolates used in the study and some biochemical properties (Kotan et al., 2014)
| Isolate No | MIS diagnosis result | SIM | Location (in Turkey) | Host | Nitrogen | Phosphate |
|---|---|---|---|---|---|---|
| TV-91C | 0.474 | Van | Poaceae | + | W+ | |
| TV-113C | 0.688 | Van | Garlic | + | + | |
| RK-92 | 0.889 | Erzurum | Pear | + | S |
Differences in the green leaves number, bract leaves number, plant height, main flower stalk length and size of bract crown of poinsettias subject to different doses of PGPR formulation in the pot experiment
| Treatments | Green leaves (no.) | Bract leaves (no.) | Plant height (cm) | Main flower stalk length (cm) | Size of bract crown (cm) |
|---|---|---|---|---|---|
| Means ± SD | |||||
| Control | 4.92 ± 0.58 bc | 9.25 ± 1.09 cd | 17.59 ± 1.18 cd | 7.87 ± 0.62 cd | 13.38 ± 1.16 b |
| T1 | 4.47 ± 1.79 c | 7.22 ± 0.84 e | 15.87 ± 1.87 d | 7.33 ± 1.98 d | 12.30 ± 2.23 b |
| T2 | 7.14 ± 0.55 a | 8.36 ± 0.88 de | 16.85 ± 1.28 d | 8.03 ± 0.79 cd | 13.68 ± 2.12 b |
| T3 | 6.03 ± 0.68 abc | 10.92 ± 0.88 b | 19.35 ± 1.24 c | 9.55 ± 1.06 bc | 16.30 ± 1.17 a |
| T4 | 6.75 ± 0.90 ab | 10.36 ± 0.38 bc | 21.93 ± 1.05 b | 11.37 ± 1.02 ab | 16.55 ± 0.35 a |
| T5 | 7.92 ± 1.46 a | 12.42 ± 0.80 a | 24.99 ± 0.80 a | 12.49 ± 0.85 a | 18.10 ± 0.15 a |
| Mean | 6.20 ± 1.55 | 9.75 ± 1.89 | 19.43 ± 3.42 | 9.44 ± 2.19 | 15.05 ± 2.43 |
The effect of different doses of PGPR formulation on bract diameter, main stem diameter, relative chlorophyll content, green leaf and bract leaf area in the pot experiment
| Treatments | Bract diameter (cm) | Main stem diameter (mm) | Relative chlorophyll content (SPAD) | Green leaf area (cm2) | Bract leaf area (cm2) |
|---|---|---|---|---|---|
| Means ± SD | |||||
| Control | 19.12 ± 1.46 bc | 4.42 ± 0.23 | 42.00 ± 2.76 b | 10.34 ± 0.74 c | 67.16 ± 9.04 c |
| T1 | 16.95 ± 2.14 c | 4.93 ± 0.42 | 52.67 ± 2.46 a | 8.66 ± 1.10 c | 77.56 ± 2.36 b |
| T2 | 18.23 ± 2.90 bc | 5.00 ± 0.45 | 50.27 ± 1.12 a | 9.86 ± 0.76 c | 78.07 ± 2.24 b |
| T3 | 19.45 ± 4.33 bc | 5.19 ± 0.40 | 49.97 ± 6.07 a | 15.14 ± 0.93 b | 78.53 ± 2.14 b |
| T4 | 22.13 ± 0.51 ab | 4.73 ± 0.73 | 50.27 ± 2.18 a | 17.86 ± 1.51 a | 86.95 ± 1.77 a |
| T5 | 25.33 ± 0.63 a | 5.45 ± 0.16 | 48.73 ± 1.17 a | 18.61 ± 1.39 a | 87.29 ± 0.99 a |
| Mean | 20.20 ± 3.49 | 4.95 ± 0.50 | 48.98 ± 4.31 | 13.41 ± 4.19 | 79.26 ± 7.77 |
The effect of different doses of PGPR formulation on plant fresh and dry weight, the total nitrogen content of leaf and root in the pot experiment
| Treatments | Plant fresh weight (g · plant−1) | Plant dry weight (g · plant−1) | Total N of leaf (%) | Total N of root (%) |
|---|---|---|---|---|
| Means ± SD | ||||
| Control | 16.00 ± 3.69 c | 2.56 ± 0.68 b | 5.84 ± 0.13 c | 1.85 ± 0.05 |
| T1 | 17.81 ± 4.94 c | 2.91 ± 1.04 b | 6.47 ± 0.07 b | 1.90 ± 0.03 |
| T2 | 14.10 ± 3.09 c | 2.54 ± 0.80 b | 6.80 ± 0.06 a | 1.85 ± 0.04 |
| T3 | 20.08 ± 4.23 c | 3.29 ± 0.71 b | 5.12 ± 0.30 e | 1.86 ± 0.03 |
| T4 | 28.86 ± 4.47 b | 4.76 ± 0.82 a | 5.46 ± 0.24 d | 1.90 ± 0.07 |
| T5 | 37.89 ± 4.80 a | 6.07 ± 0.21 a | 6.90 ± 0.06 a | 1.95 ± 0.04 |
| Mean | 22.46 ± 9.30 | 3.69 ± 1.48 | 6.10 ± 0.70 | 1.88 ± 0.06 |
Concentrations of bacterial formulation used in the study and their treatments codes
| Treatments | The amount taken from the suspension of each bacteria strain (mL) | The total amount of formulation (mL) | The amount of water (mL) |
|---|---|---|---|
| Control | 0.0 | 0.0 | 1,000.0 |
| T1 | 17.5 | 52.5 | 947.5 |
| T2 | 35.0 | 105.0 | 895.0 |
| T3 | 70.0 | 210.0 | 790.0 |
| T4 | 140.0 | 420.0 | 580.0 |
| T5 | 280.0 | 840.0 | 160.0 |
The effect of different doses of PGPR formulation on NRA and GS activity in the pot experiment
| Treatments | NRA (EU g · tissue−1) | GS (μmol γ-glutamyl hydroxamate formed · g−1 · min−1) |
|---|---|---|
| Means ± SD | ||
| Control | 4.03 ± 0.98 d | 0.23 ± 0.01 c |
| T1 | 6.32 ± 0.70 c | 0.23 ± 0.00 c |
| T2 | 6.99 ± 0.31 bc | 0.23 ± 0.00 c |
| T3 | 7.89 ± 0.94 b | 0.26 ± 0.01 b |
| T4 | 7.07 ± 0.98 bc | 0.27 ± 0.01 a |
| T5 | 9.63 ± 0.46 a | 0.25 ± 0.01 b |
| Mean | 6.99 ± 1.85 | 0.24 ± 0.01 |