Given adequate moisture and favorable temperatures, the most critical factor for germination is seed-to-soil contact.

Given adequate moisture and favorable temperatures, the most critical factor for germination is seed-to-soil contact.

• A. True
• B. False
• C. Moisture matters more
• D. Temperature matters more

Answer: (A)

Seed germination begins with imbibition, the seed taking up water to kick off metabolic activity. When moisture and temperature are already adequate, the factor that most governs how many seeds actually germinate is how well the seed touches the moist soil. Good seed-to-soil contact lets water move into the seed quickly, ensures oxygen is accessible, and keeps the seed in place long enough to swell and start root growth. If contact is poor—seed sitting in air gaps, on a loose thatch, or buried too deep—water may not reach the seed efficiently, so germination can be uneven or reduced despite adequate moisture and warmth. So, under those conditions, seed-to-soil contact becomes the determining factor.

Seed germination begins with imbibition, the seed taking up water to kick off metabolic activity. When moisture and temperature are already adequate, the factor that most governs how many seeds actually germinate is how well the seed touches the moist soil. Good seed-to-soil contact lets water move into the seed quickly, ensures oxygen is accessible, and keeps the seed in place long enough to swell and start root growth. If contact is poor—seed sitting in air gaps, on a loose thatch, or buried too deep—water may not reach the seed efficiently, so germination can be uneven or reduced despite adequate moisture and warmth. So, under those conditions, seed-to-soil contact becomes the determining factor.