Questions tagged [botany]

The study of plants and plant life.

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

Is it even possible to cut just the phloem from the stem of a plant?

I often see questions related to this kind of diagram: Basically, the diagram shows a that phloem is removed from the stem in the middle of the plant. Thus, the stem swells because food produced by ...
1
vote
0answers
43 views

What is causing these lichen patterns on a tree in Scotland?

I recently saw these lichens growing on a tree in Scotland. What is causing the pattern of dark lines? Are these the boundaries between individual lichens? Or could it be something to do with the ...
3
votes
0answers
36 views

Blooming at moonlight

At the moment a popular question in the physics SE community is about night-blooming cereus: this flower blooms at full moon, that is it is capable of making difference between the moonlight and ...
1
vote
0answers
14 views

Evergreen ornamental shrub identification

These images were taken in the middle of April in central Poland. Plants are between 0.5 and a meter tall, and around a meter in diameter.
-2
votes
0answers
20 views

Occasional Plant [closed]

Spindly plant that has small stacked leaves. White or purple flower. When you touch the leaves they will spin on the axis of the plant and stay in whatever position you put them. What is the Latin ...
-1
votes
0answers
19 views

Why do some plants seem to grow faster in northern locations such as Alaska,Michigan and Ohio then in say California? [closed]

I planted tomatoes in March in California with fertilizer automatic water system and I still have green tomatoes.My brother planted tomatoes in North Carolina a month ago in early may and has plants ...
2
votes
0answers
21 views

What causes the distinct color change in matured leaves in some plants?

Maybe that color change is caused by lower chlorophyll concentration in younger leaves' cells, or chlorophyll a to b ratio differs between younger and older leaves. All I could find is that the ...
0
votes
0answers
36 views

How can I learn botany/plant ID by myself?

I am interested in sources and methods regarding botany and plant ID, and being a self-taught person. Textbooks, sites etc. Thank you all in advance!
1
vote
0answers
31 views

Can Monsanto's (in)famous hybrid seed crops be cloned/grafted? If not, is there a technical or legal reason?

I understand that the seeds of a crop made from modern-day super hybrids will not, usually, produce the same quality plants in the next generation.... Therefore, farmers have to buy new hybrid seeds ...
1
vote
0answers
14 views

Sansevieria falling back to the wild form via leaf cuttings but not via micropropagation

I have heard that when you propagate Sansevieria via leaf cuttings, you get the wild form again. But if you use only meristem tissue, you can propagate the multicolored cultivated forms. What would be ...
0
votes
0answers
16 views

Variance components and heritability

I have a quantitative morphological data comprising of both growth and yield traits. In my heritability analysis, i discovered that some of the traits have negative variance component and heritability ...
1
vote
0answers
10 views

How does a diploid sporophyte form in non-recurrent apomixis?

I came across this definition of non-recurrent apomixis which occurs in angiosperms- In non-recurrent apomixis, both the egg-cell and embryo are haploid and embryo is developed directly from an egg-...
4
votes
1answer
137 views

Different flowers have same colour

I notice that certain (wild) flowers have the same colour, although they are not closely related. For example, the yellows of the dandelion (Taraxacum) and the buttercup (Ranunculus) are, at least to ...
-3
votes
1answer
80 views

What are those berry-like plants in this photo?

I found this photo on a Flickr gallery and I have no idea what this plant is. Is it supposedly a type of berry or something?
7
votes
0answers
42 views

What actually kills a plant that requires winter dormancy if it is kept indoors all year?

In bonsai practice, beginners will commonly purchase a juniper (often Juniperus procumbens 'Nana'), which is an outdoor tree, and keep it inside all year. The tree invariably dies. It is commonly ...
1
vote
0answers
47 views

Do some vascular tissue cells have chloroplast? [closed]

Vascular tissue includes xylem, phloem, parenchyma, and cambium cells. Does photosynthesis occur in some vascular tissue cells? Do some of them have chloroplast? Vascular tissues are made up of xylem ...
1
vote
0answers
30 views

Sex of fern gametophytes

The following image is from Campbell Biology, 12th edition It says, "Each gametophyte develops sperm-producing organs called antheridia and egg-producing organs called archegonia". This ...
4
votes
2answers
103 views

Is this some form of cabbage?

I would appreciate if someone could identify this plant. It's tall, but not very difficult to pull from the ground, and it has yellow flowers in large groups. I was told it's not mustard. Is it wild ...
2
votes
1answer
79 views

What are these needle-like plants growing in the ground?

I was outside and noticed some strange, needle-like plants growing on the ground. I managed to search for "needlegrass" but couldn't find it. Here is the photo taken on April 20, 2021 in ...
0
votes
0answers
27 views

What is this plant with yellow large fruit?

Found this in a garden in San Francisco. Can't decide if it's pomelo, capri lemon or something else, ideas?
-1
votes
1answer
27 views

Species Identification and Care

We've had this plant for a while as one of two. And both have grown incredibly over the last year. We actually know very little about these beyond watering when they look a little sad and would like ...
1
vote
1answer
34 views

What disease / parasite / fungi has affected the mango in the picture?

The mango is found to have some kind of fungi / worm on it's surface . This has affected a huge number of mangoes in the same tree . It can be described as white and fibrous / weblike structure near ...
2
votes
1answer
27 views

Do spring varietes of cereals have a process of vernalization?

I was wondering about this question - Do spring varieties of cereals have some process of vernalization? It would be nice to have some description of the main processes' differences of spring and ...
0
votes
0answers
39 views

Can you grow a plant from a seed to flower stage with only Aeroponics system

I have recently started studying indoor farming with the help of aeroponics system. But from what I know have read (I may have misunderstood or misread something, so please excuse me for that). The ...
1
vote
0answers
24 views

Regarding secondary growth in dicotyledonous angiosperms

I had read that (and as this image shows) the secondary and primary phloem eventually get crushed due to the repeated division of cells forming the secondary xylem, during secondary growth in ...
1
vote
1answer
72 views

What will happen if one keeps the photosynthesis plant active 24x7? [closed]

While reading this article online something said on it made me wonder. Also, there have been suggestions and a Dawn / Dusk type of ramp up and down to simulate the slow changes in the sun have value, ...
-1
votes
1answer
37 views

Why is movement of water through cell walls considered the apoplast and symplast pathway?

Why would the movement of water through cell walls be considered the apoplast and symplast pathway? I understand why it's considered the apoplast pathway (as the water is moving through a non-living ...
3
votes
0answers
52 views

Trying to identify a plant with pain-killing properties from northern Vietnam

My mother-in-law uses this plant to alleviate her pain caused by a severe case of spondylitis. This is a plant used in traditional medicine in her village near Hanoi, Vietnam. She doesn't know the ...
2
votes
1answer
33 views

Dissection techniques for fruits and seeds

I'm doing some amateur botany, and I was keying some plants in the Brassicaceae (Cruciferae) family, which requires detailed information about the seeds of the plant. My question is, in a seed, how ...
1
vote
1answer
33 views

Why do cells in meristematic tissues lack vacuoles?

Cells located in meristematic cells in plants lack vacuoles. However, this contradicts with the fact that plant cells have large vacuoles to store water and keep the plant in an upright position. I ...
4
votes
1answer
85 views

What is the mechanism by which seeds stay alive while in storage? [closed]

I know folks who store seeds for months and sometimes a year before planting them. What is the mechanism by which they stay alive? Also some associated questions: How do the cells in the seed stay ...
0
votes
0answers
19 views

Of Autogamy, Geitonogamy and Xenogamy

Ok, so I know whats the difference between the three terms in botany. Autogamy is pollination within the same flower, Geitonogamy is pollination from the anther of one flower to the stigma of another ...
1
vote
0answers
64 views

Garden weed identification

I'd like to identify this weed found in a garden in northern England at this time of year (March). It reproduces using underground roots rather than flowers - so if you dig it up and leave any behind ...
1
vote
0answers
18 views

Are there any epiphytic plants that pull water from the air and supply terrestrial plants with excess?

Do you know of any epiphytic plants that pull water from the air and supply the excess to other terrestrial plants?
0
votes
0answers
27 views

Difference in rose seedlings with red or green seed leaves

I tried to sowing roses from rose hips the first time. (In autumn I collected some rose hips random from different bushes in the neighborhood. I mixed the seeds while sowing.) Now the seedlings grow ...
0
votes
0answers
120 views

What is this Patagonian biome?

This image was taken in Patagonia, near the Torres Del Paine National Park. What type of biome this is? There are trees and other vegetation, but they seem mostly dried. I think this is either a semi-...
-3
votes
1answer
67 views

If you only ate fruits, vegetables or smoothies would you be able to skip drinking water?

If you only ate fruits, vegetables or smoothies would you be able to skip drinking water? I do not see some animals (like squirrels) drinking water daily (doesn't mean they don't have a water source) ...
0
votes
1answer
38 views

Can I imbibe seeds before sterilization?

For an experiment I want to germinate lettuce seeds. For logistical reasons it would be convenient to imbibe the seeds by placing them in the cold for 2 days, afterwards I would sterilize the seeds ...
2
votes
1answer
66 views

How do plants prevent infection from retroviruses? [duplicate]

Why are plants not affected by animal viruses such as retroviruses? What prevents them from being infected?
1
vote
1answer
123 views

A word that includes plants and fungi, but not animals [closed]

Hello biologists and biology enthusiasts! I am working on a project which includes information about plants and fungi. It would be very helpful for me if there a word that means plants-and-fungi, but ...
3
votes
2answers
94 views

CAM Photosynthesis Oxygen Generation?

I've been looking into CAM plants - notably the snake plant which is native to West Africa. Upon researching the CAM photosynthesis cycle, I've found it fascinating that the plant stores CO2 at night ...
0
votes
2answers
36 views

Hybrid seed production requires a male sterile parent. Why?

Hybridization is the process of crossing two plant species or varieties. In this case, two varieties of plants. In plant breeding, crossing is a very useful technique to improve the features of the ...
1
vote
1answer
51 views

Can someone identify this tree in Playa Del Carmen, Quintana Roo, Mexico?

I just noticed this tree in Playa del Carmen in Yucatan. It was swarming with bats, the bat seem to be eating either the fruit or the flowers of the tree. Any idea what it is?
-1
votes
1answer
48 views

After removing the stigma from a flower, specifically the Crocus flower, does it eventually grow back or does the plant die?

After removing the stigma from a flower, specifically the Crocus flower, does it eventually grow back or does the plant die? The reason why I am asking is I am trying to find a way to mass produce ...
4
votes
0answers
72 views

Tree identification in the Caribbean

I live in Puerto Rico and I'm trying to identify this tree and if possible how to kill it since it is infested with termites. https://imgur.com/gallery/Xbmq0g8 Tree Closer view of flowers and leaves. ...
1
vote
1answer
29 views

What is the minimum water consumption for Arabidopsis and other plants?

I'm working on a project to design a self-contained plant growth environment for germinating and growing plants in space. It's important to know the absolute minimum amount of water and nutrients ...
0
votes
1answer
73 views

Osmotic pressure and turgor pressure details

I am a high school student and I am very confused in how we define osmotic pressure? Osmotic pressure is defined as the pressure required to stop the diffusion of solvent into a solution by applying ...
-1
votes
1answer
44 views

Plasmolysis and turgor pressures

I am a high school student and I am a little confused in plasmolysis, when we study plasmolysis, we say that at limiting plasmolysis, the turgor pressure OR pressure potential reduces to 0 what do we ...
-1
votes
1answer
65 views

Does anybody know what kind of tree is this?

I saw this tree yesterday and I liked it. It is around 1.5 m. I did some search on internet and thought it might be Holly, but I'm not an expert on trees. So I wanted to ask you, does anyone know what ...
0
votes
0answers
25 views

Does every ovule undergo fertilization at the same time?

After fertilization ovary becomes the fruit and ovules develop into seeds. Does this mean that all the ovules undergo fertilization at the same time?

1
2 3 4 5
27