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Questions tagged [seeds]

The tag has no usage guidance.

13
votes
6answers
1k views

Why do seeds grow upwards?

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.
2
votes
0answers
24 views

Why does the iron content differ in different species on seeds?

Iron can be affected by pH of the soil but why does each species actually have a different iron content. What causes it? What genes cause it?
1
vote
1answer
41 views

How does one identify a seed's species & variety?

How does one identify a seed's species & variety, could it be done by some means of DNA or by use of a microscope? Say for example, I had a pumpkin seed, I knew that it was a "small sugar pumpkin"...
5
votes
1answer
89 views

What are these little leaves growing on these other leaves? (plant growing near the ocean)

I saw many of these plants while hiking on a hill facing the ocean in northern Taiwan. I've included a snapshot of a nearby part of the same trail to show it's rugged, wet, green, and rocky, and ...
2
votes
1answer
30 views

Cattail seeds spring revitalization

There's a genus of plants known as Typha, or cattail. They have seeds like of dandelion, that form thick heads. Such a head may be cut off from the plant and be used for, say, decorative purpose, but ...
0
votes
1answer
68 views

Would salt cause a pistachio nut not to be able to germinate?

If I buy a bag of pistachio nuts that have been hand picked off the tree when ripe, then salted in a (light) saltwater solution, then vacuum-sealed, and stored in a refrigerator, then will they ...
1
vote
0answers
103 views

Is the primary evolutionary purpose of a fleshy fruit to benefit the sprouting seed or the frugivorous seed disperser animal?

In a question about the low protein content in fruits, one answer suggests the energy, carbohydrate, and protein content in a fruit evolved to entice animal seed dispersers, not foster the sprouting ...
0
votes
1answer
84 views

Spores are Seeds

I think that the spores produced by the bread mould plant are actually its seeds but my textbook says that it isn't. I think that spores are seeds of bread mould because both spores and seeds perform ...
0
votes
1answer
27 views

Inexpensive way to determine mass of tiny seeds?

My niece is doing a science project and she wants to weigh various seeds, determine their volume and density. She tried using my kitchen scale, but it is not sensitive enough. I've suggested ...
2
votes
1answer
446 views

Which method of seed dispersal is the most common among the seed plants?

The five most common methods of seed dispersal in the plant kingdom are: wind (anemochory): tumbleweeds, dandelions, maples animals:(epizoochory) externally - burs / (endozoochory) internally - ...
6
votes
1answer
459 views

Plant growing inside a fruit

Today after cutting open a papaya , a plant was found in it: How is it possible for a plant to grow in a fruit? How does it gets $CO_2$ and light for photosynthesis?
1
vote
0answers
41 views

What impact do genetic engineering techniques have on seed breeders?

In research of seed breeding, I'm trying to understand the impact of genetic engineering techniques like CRISPR (This is the main one as I understand) on traditional seed breeders. Through searching ...
1
vote
0answers
14 views

Do most plants need long photperiods in order to germinate.

For a plant to perform photosynthesis, it needs long photoperiods, right? But what about for germination, do MOST seeds need long photoperiods for germination? Thanks
6
votes
1answer
569 views

How does coconut form?

I've seen that at the earlier stage coconut is filed with water and, as time passes, the water inside the coconut escapes and a thick layer of white substance forms. Is the water converted into that ...
8
votes
2answers
138 views

What is this fruit / nut?

These were found in a park in Pittsburgh, PA. From a distance they looked almost like plums, but they're actually hollow, paper-like covers that contain a hard pea-sized seed.
3
votes
2answers
49 views

Self-fertile PRUNUS: Approximately how much of the genome gets rearranged by meiosis?

I'll admit that I don't have a background in science, so this might be a stupid question. Suggestions and edits are welcome. The question is related to a similar question I had here: What DNA does a ...
3
votes
1answer
353 views

What DNA does a self-fertile plant's seedling have?

Some plants are said to be self-fertile. An example is Prunus tomentosa. Assuming that no cross-pollination happened with ...
0
votes
1answer
319 views

Do seeds use cellular respiration when they are germinating?

Do seeds use cellular respiration when they are germinating?
1
vote
0answers
308 views

Could a 3D Printed Plant Seed be Possible with Existing Technology?

The first genetically cloned animal was Dolly the sheep. As I understand it, this was possible because all that was needed was an embryo containing the cloned genetic material and a womb for that ...
1
vote
0answers
196 views

Are there any fruits that rely on dispersal of their seeds using excrement?

Are there any fruits that have seeds which can survive the digestive entirety of an animal's digestive system and remain germinable once passed on in animal excrement? Perhaps this is the primary ...
1
vote
0answers
206 views

Anatomy of seeds (dicot and monocot)

Do all dicot seeds have endosperm? Will they be retain as they grow and what are the difference with its monocot counterpart?
6
votes
1answer
72 views

How should lentil roots grow in a microgravity system?

I recently executed an experiment in which I collocated 20 lentil seeds in independent Petri boxes with an agar agar solution, all of it located in a clinostat (a slowly rotating device used to ...
0
votes
1answer
347 views

What is an example of a plant species that is a halophyte with seeds that germinate quickly?

I’m doing an experiment on the effect of salt concentration on the germination of seeds from halophyte plants. What would be an example of a species that is suitable for such an experiment? I would ...
3
votes
1answer
53 views

Are there seeds intended to feed eaters?

Seeds are meant to survive digestive systems of the animals that disperse them. Are there seeds meant for a creature, who will digest most of the seeds for nutrition and disperse only a minority of ...
7
votes
1answer
911 views

Could potatoes that have been refrigerated for 142 days still sprout?

I know that potatoes can still sprout even after being refrigerated, but could you refrigerate them for 142 days still use them as seeds to grow more plants after that? As for the temperature of the ...
5
votes
3answers
84 views

Wax layer destruction from seed coats

I'm working with some orchid species, and i encounter a specific issue. Some of those species deposits upon their seed coat a wax layer. This layer makes seeds behave in a very hydrophobic way. You ...
4
votes
1answer
124 views

Determine which seed will germinate first

I recently studied about plant physiology for a test. Strangely, there was this question which I had no idea how to approach. The question is, Which seed will germinate first? a) Castor b) Wheat c)...
1
vote
0answers
36 views

Yew seed dormancy reduction

Yew seeds have very long dormancy when artificially planted. They are also adapted to passage through digestive systems of animals that eat/transport them. But could the dormancy be shorter (or the ...
6
votes
1answer
152 views

What sort of seed pod is this?

My son found this floating in a stream in Massachusetts, in the northeastern US. It was intact when he found it, but he cracked it open to see what was inside. I did some Google image searching, but ...
1
vote
0answers
453 views

Why is it easy to separate the cotton wool from the roots of young plants grown in cotton?

In my book it is said that if we grow Maize and Gram seeds in wet cotton, after the seeds are sprouted it is easy to separate the cotton wool from the roots of young plants. My question is why is it ...
20
votes
1answer
17k views

Why do plants fruit?

This is a two-part question: What is the point of fruit if not to be eaten? It’s my understanding that organisms will adapt to survive and thrive. I understand that being eaten can spread seeds, but ...
3
votes
1answer
124 views

Confusion regarding seedless grape and the normal process of germination

In general, does seedless grape by definition contains seed or is the seed small enough that the process of ingestion creates the illusion that there is no seed? If the latter is true, is the ...
1
vote
0answers
82 views

Why do some fruits have their seeds disintegrated

Sometimes I'd come across a Lychee or a Naseberry whose seeds are kinda disintegrated.. in a thick powdered form, either completely or partially. What could cause such a thing? And is the fruit with ...
2
votes
1answer
254 views

How are oranges in the US or anywhere made seedless?

How are oranges in the US or anywhere made seedless? Please explain the broad principles and not the technicalities.
5
votes
1answer
9k views

What happens when seeds are refrigerated before planting?

My son is doing a science research project at school, and he's chosen to research what happens when seeds are refrigerated before planting. I cannot provide any information in regards to background ...
5
votes
2answers
2k views

If DNA has a half life of about 500 years, how can old seeds be planted?

According to this article, DNA has a half life of 512 years Wikipedia claims that there are seeds planted as old as 31000 years Doing the basic math $100 / (2^{30000/512})$ we get that only about $...
4
votes
2answers
2k views

Plant a whole fruit or only seeds?

I'm trying to figure out whether it is better for the plant to reproduce by planting its whole fruits with seeds inside them, or picking the seeds out and planting them without the fruit. In my case ...