Which environmental condition is not essential for the germination of seed?
Light or darkness can be an environmental trigger for germination and is a type of physiological dormancy. Most seeds are not affected by light or darkness, but many seeds, including species found in forest settings, will not germinate until an opening in the canopy allows sufficient light for growth of the seedling.
What is not required for germination?
While soil depth, temperature, and water are all required for germination, sunlight is not required until after the seedling has emerged from the soil surface.
What environmental factors are needed for seed germination?
According to VCE Authors Diane Relf and Elizabeth Ball, “There are four environmental factors which affect germination: water, oxygen, light, and temperature.” Water is important because it brings the seed to life. Seeds need a continuous supply of water during germination.
Which are the three environmental conditions that affect the germination of seeds?
Environmental factors such as temperature, light, pH, and soil moisture are known to affect seed germination (Chachalis and Reddy 2000; Taylorson 1987). Burial depth of seed also affects seed germination and seedling emer- gence.
What 5 conditions are necessary for germination?
Major Factors Necessary for Seed Germination in Plants (Internal and External Factors)
- Water: Germination cannot occur unless and until the seed is provided with an external supply of water. …
- Oxygen: …
- Temperature: …
- Light: …
- Other factors:
Is co2 required for germination of seed?
All seed germination involves water, temperature and oxygen. However, each plant species has unique requirements for these three conditions. … Note that seeds need oxygen during this stage of their development; the need for carbon dioxide increases later when leaves emerge and photosynthesis begins.
Is not essential for seed germination?
Factors such as oxygen, water and temperature are required for seed germination, but the light is not an essential factor amongst other factors.
Which of the following is not needed by a seed for germination?
Factors such as oxygen, water, and temperature are required for seed germination, but the light is not an essential factor amongst other factors. 3. Factors such as oxygen, water, and temperature are required for seed germination, but the light is not an essential factor amongst other factors. 4.