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Why do seeds grow upwards?
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Why do seeds grow upwards? Surely gravity would pull them towards the earth's core? Can anyone shine any light on this? Do seeds that are planted deeper grow more quickly.
seeds growth
asked 49 mins ago
steve bartholomew
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up vote
1
down vote
favorite
Why do seeds grow upwards? Surely gravity would pull them towards the earth's core? Can anyone shine any light on this? Do seeds that are planted deeper grow more quickly.
seeds growth
asked 49 mins ago
steve bartholomew
61
New contributor
steve bartholomew is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
Why do seeds grow upwards? Surely gravity would pull them towards the earth's core? Can anyone shine any light on this? Do seeds that are planted deeper grow more quickly.
seeds growth
asked 49 mins ago
steve bartholomew
61
New contributor
steve bartholomew is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Why do seeds grow upwards? Surely gravity would pull them towards the earth's core? Can anyone shine any light on this? Do seeds that are planted deeper grow more quickly.
seeds growth
seeds growth
asked 49 mins ago
steve bartholomew
61
New contributor
steve bartholomew is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 49 mins ago
steve bartholomew
61
New contributor
steve bartholomew is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 49 mins ago
steve bartholomew
61
New contributor
steve bartholomew is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 49 mins ago
steve bartholomew
61
asked 49 mins ago
steve bartholomew
61
61
New contributor
steve bartholomew is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
steve bartholomew is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
steve bartholomew is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
add a comment |Â
2 Answers
2
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oldest
votes
up vote
2
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It is a reaction to gravity, it is called geotropism or gravitropism. The roots tend to grow in the direction of the gravity (positive geotropism) and the stem is going against gravity (negative geotropism).
The mechanism works with auxins, or plant growth hormones. They are pulled by gravity toward a side of the plant and will either stimulate or inhibited growth in that area.
answered 36 mins ago
b.nota
6,6861629
oops! there was no answer here when I started mine....
– Bamboo
31 mins ago
Hihi @Bamboo, as long as we have the same answer that shouldn't be a problem.
– b.nota
16 mins ago
add a comment |Â
up vote
1
down vote
Because of a force known as geotropism - it is a reaction to gravity. The upward growth of shoots from seeds is known as negative geotropism whereas the downward growth of roots is known as positive geotropism.
The act of a seed to decide which way is up, or to orient itself, is geotaxis - it detects which way is down and up, in other words, because of gravitational force. see here https://www.sciencefocus.com/nature/how-do-seeds-know-which-way-to-grow/
And no, seeds which are planted deeper don't grow faster - each kind of plant seed needs to be at an optimal depth in order to germinate. Ever noticed you get lots of weed germination in freshly dug areas? That's because seeds sitting too low down in the soil which might have been their ages are moved closer to the surface by the act of digging, which then means they are now able to germinate and grow.
answered 32 mins ago
Bamboo
105k253139
add a comment |Â
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
It is a reaction to gravity, it is called geotropism or gravitropism. The roots tend to grow in the direction of the gravity (positive geotropism) and the stem is going against gravity (negative geotropism).
The mechanism works with auxins, or plant growth hormones. They are pulled by gravity toward a side of the plant and will either stimulate or inhibited growth in that area.
answered 36 mins ago
b.nota
6,6861629
oops! there was no answer here when I started mine....
– Bamboo
31 mins ago
Hihi @Bamboo, as long as we have the same answer that shouldn't be a problem.
– b.nota
16 mins ago
add a comment |Â
up vote
2
down vote
It is a reaction to gravity, it is called geotropism or gravitropism. The roots tend to grow in the direction of the gravity (positive geotropism) and the stem is going against gravity (negative geotropism).
The mechanism works with auxins, or plant growth hormones. They are pulled by gravity toward a side of the plant and will either stimulate or inhibited growth in that area.
answered 36 mins ago
b.nota
6,6861629
oops! there was no answer here when I started mine....
– Bamboo
31 mins ago
Hihi @Bamboo, as long as we have the same answer that shouldn't be a problem.
– b.nota
16 mins ago
add a comment |Â
up vote
2
down vote
up vote
2
down vote
It is a reaction to gravity, it is called geotropism or gravitropism. The roots tend to grow in the direction of the gravity (positive geotropism) and the stem is going against gravity (negative geotropism).
The mechanism works with auxins, or plant growth hormones. They are pulled by gravity toward a side of the plant and will either stimulate or inhibited growth in that area.
answered 36 mins ago
b.nota
6,6861629
It is a reaction to gravity, it is called geotropism or gravitropism. The roots tend to grow in the direction of the gravity (positive geotropism) and the stem is going against gravity (negative geotropism).
The mechanism works with auxins, or plant growth hormones. They are pulled by gravity toward a side of the plant and will either stimulate or inhibited growth in that area.
answered 36 mins ago
b.nota
6,6861629
answered 36 mins ago
b.nota
6,6861629
answered 36 mins ago
b.nota
6,6861629
answered 36 mins ago
b.nota
6,6861629
6,6861629
oops! there was no answer here when I started mine....
– Bamboo
31 mins ago
Hihi @Bamboo, as long as we have the same answer that shouldn't be a problem.
– b.nota
16 mins ago
add a comment |Â
oops! there was no answer here when I started mine....
– Bamboo
31 mins ago
Hihi @Bamboo, as long as we have the same answer that shouldn't be a problem.
– b.nota
16 mins ago
oops! there was no answer here when I started mine....
– Bamboo
31 mins ago
oops! there was no answer here when I started mine....
– Bamboo
31 mins ago
Hihi @Bamboo, as long as we have the same answer that shouldn't be a problem.
– b.nota
16 mins ago
Hihi @Bamboo, as long as we have the same answer that shouldn't be a problem.
– b.nota
16 mins ago
add a comment |Â
up vote
1
down vote
Because of a force known as geotropism - it is a reaction to gravity. The upward growth of shoots from seeds is known as negative geotropism whereas the downward growth of roots is known as positive geotropism.
The act of a seed to decide which way is up, or to orient itself, is geotaxis - it detects which way is down and up, in other words, because of gravitational force. see here https://www.sciencefocus.com/nature/how-do-seeds-know-which-way-to-grow/
And no, seeds which are planted deeper don't grow faster - each kind of plant seed needs to be at an optimal depth in order to germinate. Ever noticed you get lots of weed germination in freshly dug areas? That's because seeds sitting too low down in the soil which might have been their ages are moved closer to the surface by the act of digging, which then means they are now able to germinate and grow.
answered 32 mins ago
Bamboo
105k253139
add a comment |Â
up vote
1
down vote
Because of a force known as geotropism - it is a reaction to gravity. The upward growth of shoots from seeds is known as negative geotropism whereas the downward growth of roots is known as positive geotropism.
The act of a seed to decide which way is up, or to orient itself, is geotaxis - it detects which way is down and up, in other words, because of gravitational force. see here https://www.sciencefocus.com/nature/how-do-seeds-know-which-way-to-grow/
And no, seeds which are planted deeper don't grow faster - each kind of plant seed needs to be at an optimal depth in order to germinate. Ever noticed you get lots of weed germination in freshly dug areas? That's because seeds sitting too low down in the soil which might have been their ages are moved closer to the surface by the act of digging, which then means they are now able to germinate and grow.
answered 32 mins ago
Bamboo
105k253139
add a comment |Â
up vote
1
down vote
up vote
1
down vote
Because of a force known as geotropism - it is a reaction to gravity. The upward growth of shoots from seeds is known as negative geotropism whereas the downward growth of roots is known as positive geotropism.
The act of a seed to decide which way is up, or to orient itself, is geotaxis - it detects which way is down and up, in other words, because of gravitational force. see here https://www.sciencefocus.com/nature/how-do-seeds-know-which-way-to-grow/
And no, seeds which are planted deeper don't grow faster - each kind of plant seed needs to be at an optimal depth in order to germinate. Ever noticed you get lots of weed germination in freshly dug areas? That's because seeds sitting too low down in the soil which might have been their ages are moved closer to the surface by the act of digging, which then means they are now able to germinate and grow.
answered 32 mins ago
Bamboo
105k253139
Because of a force known as geotropism - it is a reaction to gravity. The upward growth of shoots from seeds is known as negative geotropism whereas the downward growth of roots is known as positive geotropism.
The act of a seed to decide which way is up, or to orient itself, is geotaxis - it detects which way is down and up, in other words, because of gravitational force. see here https://www.sciencefocus.com/nature/how-do-seeds-know-which-way-to-grow/
And no, seeds which are planted deeper don't grow faster - each kind of plant seed needs to be at an optimal depth in order to germinate. Ever noticed you get lots of weed germination in freshly dug areas? That's because seeds sitting too low down in the soil which might have been their ages are moved closer to the surface by the act of digging, which then means they are now able to germinate and grow.
answered 32 mins ago
Bamboo
105k253139
edited 24 mins ago
answered 32 mins ago
Bamboo
105k253139
answered 32 mins ago
Bamboo
105k253139
answered 32 mins ago
Bamboo
105k253139
105k253139
add a comment |Â
add a comment |Â
steve bartholomew is a new contributor. Be nice, and check out our Code of Conduct.
steve bartholomew is a new contributor. Be nice, and check out our Code of Conduct.
steve bartholomew is a new contributor. Be nice, and check out our Code of Conduct.
steve bartholomew is a new contributor. Be nice, and check out our Code of Conduct.
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