Leaf weeping is often confused with dew formation, but it is primarily caused by water seeping out of the leaf tips. This process is particularly common in plants such as strawberries and tomatoes, and can indicate potential problems related to leaf nutrient absorption and dry matter content.
Key factors leading to spitting up water
Dry matter deficiency:
An important reason for spitting water is the lack of dry matter in the leaves. Even if the plant has a well-developed root system and many hairs root, if the root system is not strong enough to effectively absorb nutrients, it will result in insufficient fertilizer for the roots and leaves. This deficiency will lead to a decrease in the amount of sugar produced by photosynthesis.
Sugar accumulation and transportation:
During the day, plants accumulate sugars through photosynthesis. When the sugars in the leaves reach a certain concentration, they are transported to the stems and roots. At night, as the light fades, the sugars are transferred from the leaves to the fruit, which actively absorbs these sugars.
Under optimal conditions, such as sufficient sunlight and a large temperature difference between day and night, the leaves will continue to transport water and sugars to the fruit until the early morning. However, if the weather is cloudy and the leaf temperature is still high at night, the sugar concentration may not be sufficient for effective transportation, causing sugar transportation to stop.
Effect of low dry matter content:
When the dry matter content of the leaves is low, the content of essential nutrients such as nitrogen, phosphorus and potassium will also be reduced. Although the sugar content may appear relatively high, the osmotic pressure of these sugars will be low. The drop in osmotic pressure will prevent efficient water absorption and cause water regurgitation.
In the next article, let’s look at other aspects.For more information, please feel free to contact us:Info@g-teck.net
Post time: Jan-20-2025
