Final diagnosis


Genetic abnormalities

The lettuce on the right is slightly reduced in size compared to the adjacent healthy plant. Its leaves are smaller, misshapen and slightly crumpled. <b> Genetic anomaly </b>
Certain genetic abnormalities lead to a reduction in the size of the limbus, which is also more cut. <b> Genetic anomaly </b>
The winding of the limbus is sometimes very important; the size and habit of the plant are greatly modified. <b> Genetic anomaly </b>
This lettuce, affected by a <b> genetic anomaly </b>, never really developed. Its particularly small size contrasts sharply with the surrounding salads.
The growth of this lettuce was disrupted quite early on. She is affected by a <b> genetic abnormality </b> responsible for the curling and deformation of the leaves.
All the leaves of this chimeric lettuce are rolled up. <b> Genetic anomaly </b>
The leaves of this lettuce are smaller and thicker. They are also slightly distorted and dull. <b> Genetic anomaly </b>
The diseased plant has a few yellow leaves locally lacking in chlorophyll pigments. <b> Genetic anomaly (Variegation) </b>
Sectoral yellowing and whitening of the blade of several leaves on lettuce. <b> Genetic anomaly </b>
Chimere1
Chimere7
In other situations, almost all of the leaves may be affected. <b> Genetic anomaly (Variegation) </b>
The leaves are more or less covered with irregular areas of light green to creamy yellow color. This symptom can be confusing with a mosaic dataset. <b> Genetic anomaly (Variegation) </b>
Chimere4
Chimere2
Chimere3
Chimere6
In some cases, the fabrics are completely devoid of pigment and take on a white tint. <b> Genetic anomaly (Albinism) </b>
In this lettuce crop, only one isolated plant is affected by a <b> genetic defect </b>.