Ransom Seed Laboratory - About us - Article 2 - Evaluation of TZ tests on small vegetable seeds

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Evaluation of Tetrazolium (TZ) Tests on Small Vegetable Seeds

Lettuce
Family Asteraceae

Lettuce has several types of abnormal seedlings, such as:

Physiological necrosis
Short roots

Physiological necrosis is a form of decay or cell death. This kind of damage to a seed is visible in the cotyledons of a seedling and is also visible in a tetrazolium test.