Variety traits
Glassiness in lettuce
Lactuca sativa L.
A physiological disorder characterized by the appearance of translucent, water-soaked leaf tissue areas resulting from an imbalance in the plant's water metabolism.
In the reference 6 varieties crop Lettuce, where this is mentioned in the description.
Symptoms manifest as water-soaked spots along leaf margins, restricted by veins, and are often accompanied by guttation. This condition is considered a non-infectious disorder and is viewed as an initial stage in the development of tipburn.
The cause lies in an imbalance between water uptake by the root system and the rate of leaf transpiration. Risk factors include high atmospheric humidity combined with low temperatures, insufficient lighting, as well as suboptimal nutrition and poor root system development.
This condition negatively affects the commercial quality of the produce; under prolonged exposure to adverse conditions, the affected tissues die. In agronomic practice, resistance to this disorder is assessed using an expert visual method and is a significant breeding criterion when selecting a variety.
General information about the subject — on the page Vitreousness.
Varieties of Lettuce mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
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