Effects of Drought and Salinity on Two Commercial Varieties of Lavandula angustifolia Mill
Abstract
:1. Introduction
2. Results
2.1. Substrate Analysis
2.2. Plant Growth Analysis
2.3. Photosynthetic Pigments
2.4. Ions Content Variation in Response to Stress
2.5. Osmolyte Levels
2.6. Multivariate Analysis
3. Discussion
3.1. Plant Growth and Photosynthetic Pigments
3.2. Ion Accumulation
3.3. Osmolyte Synthesis
3.4. Comparison between the Two Lavender Varieties
4. Materials and Methods
4.1. Plant Material, Seedling Growth and Stress Treatments
4.2. Plant Growth Parameters
4.3. Photosynthetic Pigments
4.4. Ion Accumulation
4.5. Osmolyte Quantification
4.6. Statistical Analysis
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Parameter | Treatment | Variety | Treatment * Variety |
Electric conductivity (EC) | 543.28 *** | 0.88 | 0.58 |
Substrate moisture (SM) | 843.73 *** | 1.98 | 3.23 |
Root length (RL) | 9.88 *** | 4.23 * | 2.89 * |
Stem elongation (SE) | 12.78 *** | 0.89 | 0.84 |
Stem diameter increment (SD) | 49.55 *** | 3.39 | 0.27 |
Increment in branch number (Bno) | 26.4 *** | 0.26 | 1.10 |
Root fresh weight (RFW) | 20.01 *** | 0.14 | 1.10 |
Root water content (RWC) | 122.12 *** | 0.11 | 0.30 |
Stem fresh weight (SFW) | 44.02 *** | 1.01 | 0.85 |
Stem water content (SWC) | 60.44 *** | 2.08 | 2.87 * |
Leaf fresh weight (LFW) | 68.59 *** | 0.39 | 0.80 |
Leaf water content (LWC) | 23.06 *** | 0.09 | 1.50 |
Clorophyll a (Chl a) | 9.62 *** | 1.27 | 0.66 |
Clorophyll b (Chl b) | 7.56 ** | 3.40 | 1.72 |
Total carotenoids (Caro) | 4.56 ** | 0.54 | 1.01 |
Sodium in roots (Nar) | 27.77 *** | 0 | 0.97 |
Sodium in stems (Nas) | 29.67 *** | 0 | 0.10 |
Sodium in leaves (Nal) | 76.44 *** | 2.54 | 2.85 * |
Chloride in roots (Clr) | 202.93 *** | 3.54 | 5.40 * |
Chloride in stems (Cls) | 54.16 *** | 0.89 | 0.97 |
Chloride in leaves (Cll) | 140.71 *** | 1.53 | 1.63 |
Potassium in roots (Kr) | 18.59 *** | 0.01 | 0.75 |
Potassium in stems (Ks) | 9.86 *** | 0.19 | 0.84 |
Potassium in leaves (Kl) | 2.24 | 0.12 | 0.09 |
Calcium in roots (Car) | 24.09 *** | 14.19 | 8.49 |
Calcium in stems (Cas) | 22.69 *** | 2.31 | 0.64 |
Calcium in leaves (Cal) | 20.20 *** | 2.74 | 0.67 |
Proline (Pro) | 17.07 *** | 6.36 | 2.89 |
Total soluble sugars (TSSs) | 0.73 | 0.75 | 1.69 |
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Szekely-Varga, Z.; González-Orenga, S.; Cantor, M.; Jucan, D.; Boscaiu, M.; Vicente, O. Effects of Drought and Salinity on Two Commercial Varieties of Lavandula angustifolia Mill. Plants 2020, 9, 637. https://doi.org/10.3390/plants9050637
Szekely-Varga Z, González-Orenga S, Cantor M, Jucan D, Boscaiu M, Vicente O. Effects of Drought and Salinity on Two Commercial Varieties of Lavandula angustifolia Mill. Plants. 2020; 9(5):637. https://doi.org/10.3390/plants9050637
Chicago/Turabian StyleSzekely-Varga, Zsolt, Sara González-Orenga, Maria Cantor, Denisa Jucan, Monica Boscaiu, and Oscar Vicente. 2020. "Effects of Drought and Salinity on Two Commercial Varieties of Lavandula angustifolia Mill" Plants 9, no. 5: 637. https://doi.org/10.3390/plants9050637