Are larger seeds more sensitive to NaCl than relatively smaller seeds?

  • Thread starter Thread starter rowkem
  • Start date Start date
AI Thread Summary
The discussion centers on an experiment comparing the effects of NaCl on the germination of large and small seeds. Results indicate that larger seeds consistently produced longer radicle lengths than smaller seeds in both control (regular water) and NaCl conditions. Across increasing concentrations of NaCl, both seed types experienced a similar reduction in radicle length, suggesting that NaCl affects both equally. The conversation emphasizes the need for a detailed comparison of radicle lengths at each NaCl concentration against the control group for both seed sizes. Additionally, participants recommend consulting existing literature to enhance understanding of NaCl's impact on seed germination, suggesting library resources for further research.
rowkem
Messages
48
Reaction score
0
So, we grew "large seeds" and "small seeds" in a certain concentration of NaCl. We also grew the same kinds of seeds in regular water.

The control group data showed that the larger seeds had a longer radicle than than the smaller seeds. The NaCl group showed the same; larger seeds=relatively longer radicles. We did it at increasing concentrations of NaCl and found the same results.

So, would it be safe to assume that both are equally affeceted by NaCl. Both had their radicle lengths decreased by about the same amount for most NaCl concentrations.

So - the question becomes: how does NaCl affect the germination of a seed?
 
Biology news on Phys.org
Make a comparison at each concentration of NaCl, to the control group. How did radicle length of the larger seeded plant at each concentration, compare to radicle length of larger seeded plant in control group? How did radicle length of the smaller seeded plant at each concentraion, compare to the radicle length of the smaller seeded plant in the control group?

Have you made a search of the literature on your kind of experiment? You can find a few articles online about this. For a better search, you may also want to go to your library and look this up (you may ask the reference librarian to help you if you have trouble finding information).
 
Deadly cattle screwworm parasite found in US patient. What to know. https://www.usatoday.com/story/news/health/2025/08/25/new-world-screwworm-human-case/85813010007/ Exclusive: U.S. confirms nation's first travel-associated human screwworm case connected to Central American outbreak https://www.reuters.com/business/environment/us-confirms-nations-first-travel-associated-human-screwworm-case-connected-2025-08-25/...
Chagas disease, long considered only a threat abroad, is established in California and the Southern U.S. According to articles in the Los Angeles Times, "Chagas disease, long considered only a threat abroad, is established in California and the Southern U.S.", and "Kissing bugs bring deadly disease to California". LA Times requires a subscription. Related article -...
I am reading Nicholas Wade's book A Troublesome Inheritance. Please let's not make this thread a critique about the merits or demerits of the book. This thread is my attempt to understanding the evidence that Natural Selection in the human genome was recent and regional. On Page 103 of A Troublesome Inheritance, Wade writes the following: "The regional nature of selection was first made evident in a genomewide scan undertaken by Jonathan Pritchard, a population geneticist at the...
Back
Top