In the high temperature and high humidity season, the temperature is high and the humidity is high, and the climatic conditions are conducive to the spread of pests and diseases. At the same time, apple trees, pear trees, peach trees and other fruit trees also began to enter the second prosperous period, and fruit development entered the expansion period. Doing a good job in regulating the tree vigor and promoting the good development of young fruits were the management focus of this period.
1. Influence pollination and fertilization
During the flowering period, high temperature, drought and abnormal weather are encountered. Due to the reduction of the relative humidity of the air and the dry climate, the fruit tree pollen germination and pollen tube growth are inhibited. Makes pollination and fertilization of fruit trees difficult, resulting in a lower fruit setting rate.
2. Affect the fruit shape index and fruit size
If the temperature is too high in the young fruit stage, the young fruit will grow faster, and the horizontal diameter of the fruit will grow faster than the longitudinal diameter, so the shape of the fruit will become flat and the shape index will decrease. If the drought and water shortage occur in the young fruit stage, the fruit growth will be severely inhibited, and the fruit will not grow very large even if the water is sufficient.
3. Affect flower bud differentiation
During the flower bud differentiation stage of the fruit tree, moderate high temperature and drought are conducive to stopping the growth of the fruit tree branches as soon as possible, which is beneficial to the flower bud differentiation. However, if the average temperature in this period is higher than 28℃, and the drought is severe, the absorption capacity of the root system of the fruit tree is weakened, the photosynthetic efficiency of the leaves is reduced, the respiration of the fruit tree is strengthened, and the accumulation of nutrients is reduced. At the same time, high temperature and drought reduced the growth hormone synthesis at the growth point, inhibited cell division, and was unfavorable for flower bud differentiation.
4. Affect fruit coloring
Fruits encounter high temperatures before maturity, especially when the temperature difference between day and night is small, the respiration of fruit trees is strong, a lot of photosynthetic products are consumed, and the carbohydrates absorbed by the fruit are insufficient, which is not conducive to fruit coloring.
5. Affect the intrinsic quality of the fruit
The high temperature causes the tree to breathe vigorously, the absorption and accumulation of carbohydrates in the fruit are reduced, and the soluble solids in the fruit are reduced. The fruit has reduced firmness and is not resistant to storage.
6. Serious sunburn
High temperature and drought easily cause excessive evaporation of fruits, leaves and bark, severe water loss, weakened transpiration, difficult to adjust the temperature of the tree body, and a sharp increase in the surface temperature, causing sunburn, severely weakening the vigor of the tree, and reducing fruit yield and quality.
7. Cause physiological defoliation
In the case of high temperature and drought, the photosynthesis of the leaves is reduced, the respiration is strengthened, and the senescence of the leaves is accelerated. Especially the leaves of the inner bore and the base of the branches gradually turn yellow and fall off under the condition of insufficient nutrition and moisture.
8. Increased physiological diseases
Due to the high temperature and drought, the absorption capacity of the root system of the fruit tree is weakened, and the decrease of the soil water content reduces the content of soluble ions, resulting in the aggravation of various physiological diseases such as boron deficiency and iron.
9. The disease of branches and dead trees is serious
The high temperature and drought significantly reduced the moisture content of the bark of the branches, and it is easy to cause sunburn, resulting in local death of the bark tissues. In addition, under high temperature and drought conditions, the tree has less nutrient accumulation, more consumption, and weak tree vigor, which is very likely to cause rot and dry rot. The occurrence of disease. High temperature and drought also cause a large number of surface root system deaths. If the watering conditions are poor or the watering is not timely, the trees often lose a lot of water. Under severe water shortage, the root system suffers the most, causing the root system to die until the entire tree dies.
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LLLT soft laser therapy device handheld laser therapy device for pain relief
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Handheld laser therapy devices, also known as low-level laser therapy (LLLT) devices or cold laser therapy devices, offer several benefits for various applications. Here are some of the key benefits:
1. Pain Relief: Laser therapy devices can provide effective pain relief by stimulating the release of endorphins, reducing inflammation, and improving blood circulation. They can be used to alleviate acute and chronic pain in conditions such as arthritis, sports injuries, back pain, and fibromyalgia.
2. Accelerated Healing: Laser therapy promotes tissue repair and regeneration by increasing cellular energy production. It helps to speed up the healing process of wounds, cuts, burns, and post-surgical incisions. It can also be used to treat skin conditions like acne, eczema, and psoriasis.
3. Non-Invasive and Non-Pharmacological: Laser therapy is a non-invasive treatment option that does not require surgery, injections, or medications. It offers a drug-free alternative for pain management, reducing the risk of side effects and drug interactions.
4. Easy to Use: Handheld laser therapy devices are portable and user-friendly. They can be used at home or on-the-go, allowing individuals to manage their pain or promote healing conveniently and independently.
5. Versatile Applications: These devices can be used for a wide range of conditions, including musculoskeletal injuries, nerve pain, joint pain, dental problems, skin disorders, and more. They are suitable for both human and veterinary use.
6. Cost-Effective: Compared to other treatment options, handheld laser therapy devices can provide cost savings in the long run. They offer a one-time investment, eliminating the need for ongoing medication or frequent visits to healthcare professionals.
7. Minimal Side Effects: Laser therapy is generally safe and well-tolerated. It has minimal side effects, such as temporary redness or warmth at the treatment site. However, it is important to follow the manufacturer's instructions and consult a healthcare professional if needed.
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Shenzhen Guangyang Zhongkang Technology Co., Ltd. , https://www.syztreatment.com