Dormancy: Natural Breaking of Seed Dormancy, Artificial Breaking of Dormancy in Seeds, Significance

Dormancy

• Dormancy or rest is the inability of a viable seed to germinate despite being in an optimal environment.
  • Bewlay and Black (1994) classify two categories of seed dormancy: seed coat-based and embryo-based. Each contains substances that inhibit germination.

    There are numerous reasons why seeds remain dormant, including:

• The immaturity of the embryo at the time of seed discharge. The Anemone nemorosa and Ranunculus ficaria are both examples o…

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Fruit Ripening: Control of Fruit Ripening by Hormones, Several Additional Phytohormones in Ripening, Fruit Maturation and Environmental Control

Fruit Ripening

The phenomena of senescence and fruit ripening are closely related. The term “senescence” is frequently used to refer to the final stage of a plant organ՚s ontogeny, when a series of events ultimately results in the organ՚s demise.

On the other hand, “fruit ripening” refers to the changes that occur in fruits during the early phases of senescence that render them edible. As a result, the fruit is appearance, firmness, flavor, and a…

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