Effects of Pseudomonas fluorescens on the Water Parameters of Mycorrhizal and Non-Mycorrhizal Seedlings of Pinus halepensis
Abstract
:1. Introduction
2. Results and Discussion
Treatment | Control | Pseudomonas | Pisolithus × Pseudomonas | |
---|---|---|---|---|
Water-relations parameters | ||||
Ψπfull 1 (MPa) | −1.24 (±0.1) a | −0.43 (±0.1) b | −1.04 (±0.14) a | |
Ψπ0 (MPa) | −1.72 (±0.13) b | −1.02 (±0.33) b | −2.74 (±0.33) a | |
Emax (MPa) | 11.55 (±1.91) a | 5.75 (±1.06) b | 3.24 (±0.85) b | |
Growth | ||||
Height (cm) | 6.74 (±0.25) b | 8.94 (±0.4) a | 9.43 (±0.5) a | |
Basal Diameter (mm) | 1.33 (±0.07) b | 1.47 (±0.06) ab | 1.64 (±0.09) a | |
Shoot (g) | 0.137 (±0.008) b | 0.268 (±0.019) a | 0.3 (±0.036) a | |
Root (g) | 0.1 (±0.01) c | 0.251 (±0.02) a | 0.18 (±0.014) b | |
Root growth potential | ||||
Length 2 (cm) | 1.9 (±1.1) a | 3.4 (±1) a | 3.3 (±0.9) a | |
Mycorrhizal colonisation | ||||
Pisolithus (%) | 0 b | 0 b | 43 (±6) a | |
Total 3 (N/plant) | 195 (±28) c | 471 (±43) b | 983 (±170) a | |
Nutrient concentration | ||||
N (mg/g) | 6.8 (±0.18) a | 7.71 (± 0.33) a | 7.85 (±0.34) a | |
P (mg/g) | 0.59 (±0.01) a | 0.41 (±0.01) b | 0.4 (±0.03) b | |
K (mg/g) | 6.22 (±0.07) a | 6.07 (±0.06) a | 5.46 (±0.16) b | |
Ca (mg/g) | 7.4 (±0.51) a | 6.83 (±0.1) a | 7.06 (±0.22) a | |
Mg (mg/g) | 4.33 (±0.15) a | 3.72 (±0.15) a | 3.83 (±0.22) a |
3. Experimental Section
3.1. Plant Production
3.2. Fungal and Bacterial Inoculum
3.3. Experimental Design and Bio-Inoculations
3.4. Measurements
3.4.1. Pressure-Volume Analysis and Plant Water Measurements
3.4.2. Growth and Mycorrhizal Colonisation
3.4.3. Nutrient Analysis
3.4.4. Root Growth Potential
3.5. Data Analysis
4. Conclusions
Acknowledgments
Conflicts of Interest
References
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Domínguez-Núñez, J.A.; Muñóz, D.; De la Cruz, A.; Saiz de Omeñaca, J.A. Effects of Pseudomonas fluorescens on the Water Parameters of Mycorrhizal and Non-Mycorrhizal Seedlings of Pinus halepensis. Agronomy 2013, 3, 571-582. https://doi.org/10.3390/agronomy3030571
Domínguez-Núñez JA, Muñóz D, De la Cruz A, Saiz de Omeñaca JA. Effects of Pseudomonas fluorescens on the Water Parameters of Mycorrhizal and Non-Mycorrhizal Seedlings of Pinus halepensis. Agronomy. 2013; 3(3):571-582. https://doi.org/10.3390/agronomy3030571
Chicago/Turabian StyleDomínguez-Núñez, José A., Daniel Muñóz, Ana De la Cruz, and José A. Saiz de Omeñaca. 2013. "Effects of Pseudomonas fluorescens on the Water Parameters of Mycorrhizal and Non-Mycorrhizal Seedlings of Pinus halepensis" Agronomy 3, no. 3: 571-582. https://doi.org/10.3390/agronomy3030571