amount of moisture in the soil
stimulus
Some environmental factors that may favor seed germination include the availability of water, optimal temperature, and the presence of oxygen. Additionally, the presence of light or specific chemicals may also play a role in promoting seed germination.
Pollen germination and growth can be controlled by manipulating environmental factors such as temperature, humidity, and light. Chemical treatments, such as hormones or inhibitors, can also be used to regulate pollen germination and growth. Additionally, genetic manipulation can be employed to develop transgenic plants with desired pollen germination and growth characteristics.
Extreme environmental conditions such as heat and cold may affect the timing of a mature seed's germination. These conditions can influence the seed's physiological processes, potentially delaying or accelerating the onset of germination depending on the specific temperature and moisture levels. Additionally, extreme conditions can impact the seed's dormancy period, which is crucial for ensuring that germination occurs under optimal environmental circumstances.
There are three types of germination 1.Hypogeal germination and epigeal germination and Cleistogeal germination. Hypogeal Germination: In this kind of Germination, the seed leaves or the cotyledons remain under the surface of soil. example: pea seeds - Epigeal Germination: In this type of Germination, the seed leaves grow above the ground on the new shoot. example: ash tree -Cleistogeal Germination: A special leaf that has a central umbrella like stalk forms above the ground which protects the shoot from any damage. So the development of the shoot can not be seen.
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stimulus
One example of an environmental cue is picking up a dogs leash and the dog running to the door. You do not have to tell the dog that he is going for a walk, he knows this from the leash. Other examples of environmental cues include the lighting in a restaurant, dim lighting can make you eat more, the size of your plate is another environmental cue. Putting food on a small plate will make you feel that you are eating more food.
bright light
Different plants have different cues. The changing seasons is one environmental cue, especially for spring flowering plants like daffodils and tulips. Other plants respond to the reletive length of day and night, or flower after obtaining a certain size. For some plants, temperatire is the cue.
transitional cue
Some environmental factors that may favor seed germination include the availability of water, optimal temperature, and the presence of oxygen. Additionally, the presence of light or specific chemicals may also play a role in promoting seed germination.
Pollen germination and growth can be controlled by manipulating environmental factors such as temperature, humidity, and light. Chemical treatments, such as hormones or inhibitors, can also be used to regulate pollen germination and growth. Additionally, genetic manipulation can be employed to develop transgenic plants with desired pollen germination and growth characteristics.
Grass seed germination usually takes about 5 to 10 days, but it can vary depending on the type of grass and environmental conditions.
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Extreme environmental conditions such as heat and cold may affect the timing of a mature seed's germination. These conditions can influence the seed's physiological processes, potentially delaying or accelerating the onset of germination depending on the specific temperature and moisture levels. Additionally, extreme conditions can impact the seed's dormancy period, which is crucial for ensuring that germination occurs under optimal environmental circumstances.
There are three types of germination 1.Hypogeal germination and epigeal germination and Cleistogeal germination. Hypogeal Germination: In this kind of Germination, the seed leaves or the cotyledons remain under the surface of soil. example: pea seeds - Epigeal Germination: In this type of Germination, the seed leaves grow above the ground on the new shoot. example: ash tree -Cleistogeal Germination: A special leaf that has a central umbrella like stalk forms above the ground which protects the shoot from any damage. So the development of the shoot can not be seen.