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2. Germination - Wikipedia

   en.wikipedia.org/wiki/Germination

   It is a measure of germination time course and is usually expressed as a percentage, e.g., an 85% germination rate indicates that about 85 out of 100 seeds will probably germinate under proper conditions over the germination period given. Seed germination rate is determined by the seed genetic composition, morphological features and ...

3. Stratification (seeds) - Wikipedia

   en.wikipedia.org/wiki/Stratification_(seeds)

   Warm stratification requires temperatures of 15–20 °C (59–68 °F). In many instances, warm stratification followed by cold stratification requirements can also be met by planting the seeds in summer in a mulched bed for expected germination the following spring. Some seeds may not germinate until the second spring. [citation needed]

4. Photoblasticism - Wikipedia

   en.wikipedia.org/wiki/Photoblasticism

   Photoblastic response of Japanese katsura tree seed germination [1] Photoblasticism is a mechanism of seed dormancy. Photoblastic seeds require light in order to germinate. [2] Once germination starts, the stored nutrients that have accumulated during maturation start to be digested which then supports cell expansion and overall growth. [3]

5. Agricultural cycle - Wikipedia

   en.wikipedia.org/wiki/Agricultural_cycle

   Germination is a process by which the seed develops into a seedling. The vital conditions necessary for this process are water, air, temperature, energy, viability and enzymes . If any of these conditions are absent, the process cannot undergo successfully.

6. Seed dormancy - Wikipedia

   en.wikipedia.org/wiki/Seed_dormancy

   Many plants that have seeds that germinate in early to mid summer have thermodormancy and germinate only when the soil temperature is warm. Other seeds need cool soils to germinate, while others like celery are inhibited when soil temperatures are too warm. Often thermodormancy requirements disappear as the seed ages or dries.

7. Epigeal germination - Wikipedia

   en.wikipedia.org/wiki/Epigeal_germination

   Epigeal vs. hypogeal germination. Epigeal germination (Ancient Greek ἐπίγαιος [epígaios] 'above ground', from ἐπί [epí] 'on' and γῆ [gê] 'earth, ground') is a botanical term indicating that the germination of a plant takes place above the ground. An example of a plant with epigeal germination is the common bean (Phaseolus ...