Questions tagged [botany]

The study of plants and plant life.

Filter by
Sorted by
Tagged with
0
votes
0answers
33 views

Is there such a thing as an autotroph that doesn't use photosynthesis?

I've heard of photoautotrophs, which are just autotrophs that use photosynthesis. What I'm wondering is if there's any other way for an organism to make its own food that doesn't involve it using ...
0
votes
0answers
13 views

Does active oxygen hurt wounded bamboo tissue?

I have a bamboo which is going yellow and I want to cut off the top part which is still green and replant it. A gardener told me I should disinfect the wound (which I will create by cutting the top ...
1
vote
0answers
19 views

Why do some plants develop a shiny layer that looks like plastic?

I noticed some plants that look almost as if they were made of plastic and am wondering what and why that is. Here is a sample photo: My guess is that this might be some sort of waxy cuticle that ...
0
votes
0answers
9 views

Botany practice questions for self-study

I am studying for the USA Biolympiad. I have read Raven's Biology of Plants and Reece's Campbell Biology, but I am struggling to find plant biology practice questions. Can anybody recommend some ...
-1
votes
0answers
37 views

If optimizing water conduction is an advantage, why don’t all plants have the same vascular traits?

If optimizing water conduction is an advantage, why don’t all plants have the same vascular traits?
0
votes
0answers
5 views

How long does an echinopsis subdenudata last for? [migrated]

I recently bought an Echinopsis Subdenudata and I was wondering, approximately, how long they last (outdoors and indoors) and how resistant to a lack of watering they are. I was also wondering about ...
0
votes
1answer
24 views

What is the difference between floral primordia and floral buds?

As we know an axillary bud differentiates to form a floral bud, but what is a floral primodium?
-2
votes
0answers
12 views

how to make diffrence between shoot and stem?

stem have nodes and inter-nodes but i also learn that shoot have also nodes and inter-node. many web reference says that both are same but the confusion is that we say that flower is a modified shoot. ...
0
votes
0answers
15 views

Plant identification (indoor succulent)

A relative brought back a plant cutting from a trip to Erythrea. The plant was in a garden, so I do not know whether it is native to that area. What I do know is that is lives happily outdoors, both ...
0
votes
1answer
34 views

Are peppers on the same plant genetically identical?

I'm a hot pepper growing enthusiast and on one unknown super hot cross there is significant variation in pod size and shape. What causes significant variation of pod shape and size on the same plant? ...
2
votes
0answers
27 views

Can human pathogens present on plants become plant pathogens?

Since human pathogens sometimes live on the surface of plant leaves(read here and and here), and there are plant-pathogen microbes also living on leaf surfaces, is it possible for plant virulence ...
4
votes
0answers
42 views

Century old trees and evolution

We always think of natural selection as occurring at the level of populations not individuals. how about century old trees where germline is being produced from constantly dividing cells. Are all ...
1
vote
0answers
45 views

What plant is this? I can't identify

Please help me identify this plant. This was shot in the assam-meghalaya region of india.
3
votes
2answers
107 views

ID: Serated-leafed seedling

A seedling has popped up in one of my planters (acid soil; Toronto, Ontario). What is it? June 4, 2020: June 20, 2020:
0
votes
0answers
24 views

How do plants respire at night?

If the stomata close during the night to conserve water, how does the plant get oxygen for respiration when they are closed? Do they not fully close? Does the plant's metabolism slow down to ...
-2
votes
0answers
17 views

Botany - back to basics

I have started out my journey of growing things with strawberries and cacti. As a scientist I am curious about the botany basics behind why plants grow and what their needs are. I tried this on the ...
5
votes
1answer
64 views

Does dormant poison ivy contain urushiol in the above-ground portion of the plant?

I recently had a run-in with poison ivy (late spring; Canadian shield). The poison ivy plants had not yet leafed-out so I failed to identify them as a hazard. I think I must have either trampled ...
0
votes
0answers
19 views

Is there any animal database or website that classifies animals as wild / domestic?

Is there any animal database or website that classifies animals wild / domestic? Or.. the site that I can get the wild / domestic information of animal list...
2
votes
0answers
12 views

Is this may-flowering grass an Echinochloa (barnyard grass)?

There's a grass growing in my thyme pot on my balcony, that's currently flowering (end of May, Paris region, France, southern exposure, windy conditions), and I'm wondering what species it is: Here ...
-3
votes
2answers
32 views

Bats, bees and nectar

I have been thinking about this for a long time and your thoughts would really help. Since it's known that bats spread Covid 19, I studied more about places that they may have contacted. The first ...
0
votes
0answers
21 views

Do chilli peppers change in composition after they change color?

I grow some chilli peppers and was wondering when the time is right to harvest them. Of course gardening-focused sources say that they are ripe when they change color. This usually happens very ...
1
vote
0answers
33 views

Identification and odd leaf anomaly

We're in the process of welcoming sheep, thus setting up the fences, now inside on of the areas, there is a small tree. Never seen leafs like this before. I suspect this to be some sort of anomaly/...
0
votes
0answers
24 views

Radiation mutation breeding in plant seeds: practical aspects

I did read some seed irradiation papers and they all use Gy as unit of measure, however I have never seen seed weights reported. How did they calculate that, since Gy is J/kg? Differencies aside ...
4
votes
2answers
82 views

Is it possible to reduce maturity time of plants with biotechnology?

I've heard of speed breeding which makes use of optimal circumstances in glasshouses and growth chambers. Is it also possible to shorten a plant's maturity time (i.e. the time it needs from being ...
2
votes
1answer
35 views

What did Darwin mean by “degraded flowers”?

One of the chapters of The Origin of Species says that "Certain plants, belonging to the Malpighiaceæ, bear perfect and degraded flowers;" Full passage for context Do you know which plant ...
2
votes
1answer
54 views

Difference between sexual and asexual spore

This Wikipedia article on Spores mentions this: In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for .... What is the difference between the sexual spore and ...
3
votes
0answers
29 views

When a 'v' letter should be changed to 'w' in botanical nomenclature?

When should be 'v' changed to 'w' in botanical names? (especially ones derived from names originally written in cyrillics). The International Code of Nomenclature for algae, fungi, and plants says ...
0
votes
1answer
220 views

What’s the Difference Between Grass and Sedge?

What’s the difference between grasses and sedges? in terms of anatomy and classification.
0
votes
0answers
21 views

What is happening to this linden tree? [duplicate]

The main tree is a linden tree judging by the flowers in the spring. And the bottom bush thing is a lilac. Is the lilac somehow attacking the tree?
-1
votes
1answer
20 views

What is the name of this part in plants, fruits, vegetables?

What is the name of this part of the plant, fruit, vegetable? The thing that the plant is connected with the tree and gets nutrients with? The part we usually cut out when eat fruit. Examples below ...
0
votes
1answer
44 views

Genetic mutations in plants

I am trying to plant some trees which are usually native to colder climates into Subtropical climate, is there any possibility that if i plant these 20 trees saplings in winters they will grow to be a ...
-1
votes
2answers
37 views

Stem and Branch of plants

What is the difference between the stem of a plant and the branch of a plant. Is the branch part of the stem?
1
vote
0answers
12 views

Is it possible to accelerate active transport in plant vascular system using some electronic method?

I am from electronics background and got an understanding that electrical current affect plant growth. Based on this phenomenon, I got an idea but before I formulate my hypothesis and start ...
3
votes
1answer
45 views

What's the role of bromelain in pineapple?

Bromelain refers to one of two proteases found in pineapple and its relatives. Like other proteases, many believe it has therapeutic uses and it's the subject of a lot of research. But what role does ...
0
votes
0answers
8 views

Does the source (above or below ground) of an auxin alter its effects?

If auxins typically inhibit shoot growth (as happens when the apical bud produces and transmits auxin to the shoots below, inhibiting their growth), while typically stimulating root growth (which is ...
1
vote
1answer
67 views

Is there any study to find the plant with the absolute minimum light need?

Is there any study to find plants with absolute minimum light need? Consider a bathroom without windows that you have occasional artificial light (e.g. white LED light). Another question is there ...
5
votes
0answers
109 views

Trees growing around objects vs pushing them away. Where is the threshold?

If a tree grows against a taut wire then the tree will grow around it, eventually enveloping the entire wire. This often scars the tree, and if the wire is thick enough, it will interrupt nutrient ...
1
vote
0answers
69 views

Why some plants can be propagated from a leaf cutting but some can not?

I understand the process of leaf-cutting propagation as following: 1) with the help of auxin from the leaf, callus is forming on the wound and then roots are forming from callus, 2) with the help ...
1
vote
0answers
16 views

How to Identify Astragalus Species

I have several photos of a plant I believe to be in the genus Astragalus. I would like to determine the particular species in my area, the foot hills of San Diego County. Do I need a microscope to ...
1
vote
1answer
41 views

Are these structures real petals?

I don't know the name of the plant. It's a common house plant in Bangladesh. What interests me about its flower is the colorful leaflike structure that probably functions as a petal. What is this ...
0
votes
1answer
35 views

A plant in my aquarium seems to be growing small plants under its leaves, what's going on?

In my aquarium I have this plant. I think it's a kind of swordplant. I've loosely attached it to a large piece of driftwood in the hope that it will grow itself on there, I saw that they had done the ...
2
votes
0answers
12 views

Are there any studies on the solar latitude limits of different plant species, beyond which they wouldn't thrive even with suitable weather?

Not sure whether this belongs here or in the Gardening & Landscaping StackExchange, but here goes... According to maps provided in the paper Present and future Köppen-Geiger climate ...
1
vote
1answer
79 views

Unknown mite species in plant pots

Does anybody know what kind of mite this is? It is living in my pepper plants' pots. My region is south of Germany. (Baden-Württemberg) I will try to take another picture including some size ...
0
votes
1answer
32 views

What are these flowers on Kerguelen?

What are these plants, which resemble short pink sunflowers, in this photograph from Kerguelen island?
2
votes
0answers
15 views

Do floating plants on a quiet body of water significantly affect the evaporation?

A situation such as a pond where a plant like duck weed covers essentially all visible surface water : Is evaporation slowed or stopped ?
0
votes
1answer
21 views

How can I make legal mature female Cannabis plants to Flower in home during March (springtime)? [closed]

In December 2019 I purchased 4 Cannabis seeds Legally in Canada.Two of my plants are now about 100 cm tall. I am using wide-spectrum LED grow lights and have fertilized them both. I started with 16 ...
3
votes
1answer
88 views

Are these spinach leaves?

I often buy baby spinach from the store, and sometimes, in a few bags of spinach I also find these leaves: They have a different shape than the spinach leaves, they are a lighter green, and they ...
0
votes
1answer
24 views

L-system rule for different plant types

I have coded an implementation of L-systems (Lindenmayer systems) and would like to use it to generate realistic looking trees. Is there a reference list that shows which rules are most appropriate ...
3
votes
0answers
31 views

What to do with this Araucaria sprout

I live in Santiago, Chile, and I see this Araucaria frequently: For what I have read, it seems to be a female A. angustifolia individual (leaves are 2-3 cm long and a few mm wide, with a very sharp ...
0
votes
0answers
17 views

Relation of root length to plant size

I am thinking of making an aeroponics system. But after i finished my primary design I though to myself how deep should I make the container for the roots of my plants? Since I want to make my system ...

1
2 3 4 5
26