What are typical germination requirements for many seeds?

• A. Adequate moisture, favorable temperature, and sometimes light or darkness depending on species.
• B. Adequate moisture and sunlight every day.
• C. High humidity only.
• D. Temperature alone.

Answer: (A)

Germination relies on three main factors working together: moisture, temperature, and sometimes light or darkness depending on the seed type. Moisture is essential because the seed must absorb water to activate enzymes that break down stored foods and restart metabolism. Without enough water, growth can’t begin. Temperature matters because enzyme activity and metabolic rate respond to heat; there’s an optimal range for most seeds, and outside it germination slows or stops. Light conditions come into play for many seeds: some need light to germinate, some require darkness, and others are not affected by light at all. That combination—adequate moisture, a favorable temperature, and the appropriate light/dark cue when required—best explains why many seeds germinate.