Freezing Tolerance Enhancement and Thermographic Observation of Whole Peach Trees Applied with Cellulose Nanocrystals under Realistic Spring Frost Conditions Using a Soil–Fruit–Daylit–System
Abstract
:1. Introduction
2. Results
2.1. Microscopic Observation of Frost Damage to Peach Flower Buds after Treatment with 2% CNCs
2.2. Thermal Image Analysis of Frost Damage to Peach Flower Buds after Treatment with 2% CNCs
3. Discussion
4. Materials and Methods
4.1. Plant Material and Treatment with CNCs
4.2. Observation of 2% CNCs-Treated Excised Shoots Using an IR Camera
4.3. Simulation of Spring Frost Using SFDS Chambers
4.4. Evaluation of Frost Damage of Peach Flower Buds
4.5. Observation of Frost Events Using an IR Camera
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Set Temperature ( °C) | Treatment | Phenological Stage | No Damaged (%) | Only Pistil Damaged (%) | Only Stamen Damaged (%) | Pistil + Stamen Damaged (%) |
---|---|---|---|---|---|---|
−4 | Control | Calyx red | 43.0 | 39.5 | 17.5 | 0.0 |
2% CNCs | 85.9 | 1.3 | 12.8 | 0.0 | ||
Control | First pink | 1.8 | 28.9 | 38.0 | 31.3 | |
2% CNCs | 29.7 | 0.0 | 70.3 | 0.0 | ||
−6 | Control | Calyx red | 0.0 | 55.5 | 1.8 | 42.7 |
2% CNCs | 9.8 | 57.0 | 6.2 | 27.0 | ||
Control | First pink | 0.0 | 6.0 | 0.0 | 94.0 | |
2% CNCs | 1.4 | 22.8 | 2.4 | 73.4 |
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Lee, S.; Jeong, J.H.; Kim, S.H.; Shin, H. Freezing Tolerance Enhancement and Thermographic Observation of Whole Peach Trees Applied with Cellulose Nanocrystals under Realistic Spring Frost Conditions Using a Soil–Fruit–Daylit–System. Plants 2021, 10, 2301. https://doi.org/10.3390/plants10112301
Lee S, Jeong JH, Kim SH, Shin H. Freezing Tolerance Enhancement and Thermographic Observation of Whole Peach Trees Applied with Cellulose Nanocrystals under Realistic Spring Frost Conditions Using a Soil–Fruit–Daylit–System. Plants. 2021; 10(11):2301. https://doi.org/10.3390/plants10112301
Chicago/Turabian StyleLee, Seongho, Jae Hoon Jeong, Seung Heui Kim, and Hyunsuk Shin. 2021. "Freezing Tolerance Enhancement and Thermographic Observation of Whole Peach Trees Applied with Cellulose Nanocrystals under Realistic Spring Frost Conditions Using a Soil–Fruit–Daylit–System" Plants 10, no. 11: 2301. https://doi.org/10.3390/plants10112301