The study of plant life; e.g. angiosperms, gymnosperms, bryophytes, pteridophytes, and algae.
21
votes
1answer
258 views
How long will a vegetable live for after being harvested?
I understand this might depend on the types of vegetables, but is there an average or studied specifics? Does it die immediately? Is there a way to precisely diagnose death in plants? If so, what are ...
13
votes
1answer
208 views
Do trees age on a microscopic level?
Most animals age via at least two mechinisms:
at a "macroscopic" level, basically wear and tear to the point where (on evolutionary time scales) it's more genetically advantageous to optimize for ...
2
votes
1answer
31 views
Do plant-plant interactions inhibit growth?
Plants produce lots of compounds that inhibit (kill or irritate) microorganisms and insects. They have defenses against plant viruses and infections.
What kinds of compounds or hormones to plants ...
30
votes
4answers
1k views
Why do plants have green leaves and not red?
I know plants are green due to chlorophyll.
Surely it would be more beneficial for plants to be red than green as by being green they reflect green light and do not absorb it even though green light ...
15
votes
4answers
351 views
How do trees manage to grow equally in all directions?
I was walking down a road with these beautifully huge trees when this question occurred to me.
Large trees with many thick branches have to grow equally in all directions, or they would tip over. Is ...
14
votes
1answer
178 views
What is the lowest pressure at which plants can survive?
What is the lowest pressure at which plants can survive? How the plants behave in a Martian-type atmosphere? Is there any plant that can survive such atmosphere?
Can a lichen grow at Martian ...
12
votes
2answers
288 views
How Do Galls Form?
I am curious how Gall Wasps, bacteria and other organisms induce galls to form.
Specifically, what chemicals induce gall formation?
11
votes
1answer
147 views
Why do some trees have a life span, while some don't?
I have heard that there is no limit on the growth of trees, but then why do some trees, such as boxelders and poplars, tend to live shorter than redwoods, for example? Some advertisements for improved ...
9
votes
4answers
160 views
What was the reason for some plant and animals to become giant in course of evolution?
The dinosaurs, mammoths, giant plants etc are known to be bigger than modern animals. I wonder why they had been lived and why they are not living now? I really don't know much but is it something ...
9
votes
1answer
438 views
What's the effect of oxygen deficit on plants?
As I know all cells require oxygen. So my question is how efficiently can plants operate in no-oxygen atmosphere? Do all plants produce enough oxygen for themselves? Can they consume their own oxygen ...
