Jump to content
The Corroboree
Sign in to follow this  
Inyan

Germinating cacti seeds in 3% Hydrogen Peroxide

Recommended Posts

Germinating cacti seeds in 3% Hydrogen Peroxidehydrogenperoxide.thumb.jpg.4b86f6b47a0843aab876541a7289b15c.jpgSitting in a bath...Ibath.thumb.jpg.ea962a9686fea4fab82f39440d4f3461.jpg

Share this post


Link to post
Share on other sites

Day 2day2_17_July_2018.thumb.jpg.6f7c0800f5dcae6518161374a1ec35e5.jpg  No real change whatsoever, but thought I'd post a picture nonetheless. 

Share this post


Link to post
Share on other sites

Thanks for sharing the experiment, i have never had any issues with mold or rot, i just boil a jug of water and pour it over the medium then sprinkle a thin layer of sand over the surface, place lids on till cool enough to sprinkle the seeds followed by a misting of rain water.

Share this post


Link to post
Share on other sites

I wish it rained where I live, I keep hearing about how good that stuff is for cacti.

  • Like 2

Share this post


Link to post
Share on other sites

At work we use Potassium Nitrate KNO3 (1% sol) to break dormancy in seeds. I haven't tried it on cacti seeds tho.

 

We soak the seeds for 24h in the KNO3 solution, then tip off the solution and soak in plain tap water for another 24h to fully imbibe the seeds before sowing.

 

Works a treat :)

  • Like 2

Share this post


Link to post
Share on other sites

So in this case is the purpose of the peroxide to increase germination rates or to speed up germination or for molds and bacteria etc. or is it all three ?

19 hours ago, Auxin said:

I wish it rained where I live, I keep hearing about how good that stuff is for cacti.

Yeh man, it can be a downer when the sky withholds the goods, especially if ya off grid

 

Edited by bardo
add
  • Like 1

Share this post


Link to post
Share on other sites

Older corn seeds have shown an increased germination rate (almost 95%) when germinated in 15% hydrogen peroxide and about a 50% increased germination rate when compared to aerated water germination over a period of 24 hour treatment.

 

Hydrogen peroxide is thought to help break down the seed coat thus speeding germination.

 

H202 also has the advantage of being able to kill or stave off many types of bacteria, mold, etc. So, it would seem to be an advantage to use to help stave off various plant pathogens or competing organisms at the very least while one waits for their seeds to germinate.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4740362/

 

https://pdfs.semanticscholar.org/941c/11015496da59faacfa802431f55cefdd4e82.pdf

 

https://www.degruyter.com/downloadpdf/j/fhort.2014.26.issue-1/fhort-2014-0002/fhort-2014-0002.pdf

 

"

However, all of the treatments applied, regardless of time and concentration of H2O2, positively affected seed health, significantly reducingseed infestation by fungi in both samples. Moreover, the lowest level of A. zinniae infection was observed if seeds were soaked in 6% and 9% H2Osolutions for 60 and 20 min, respectively. Higher concentrations of H2O(9% and 12%) negatively influenced seed germination and vigour, especially in sample II. These findingssuggested that the treatment of zinnia seeds with hydrogen peroxide can effectively improve germination mostly in samples heavily infected with pathogens, which means that it should be preceded by seed health evaluation."

 

18 July 2018

update Day_3_18July_2018_3.thumb.jpg.a1e121d6810ef824d43bba62043bab74.jpg

Edited by Inyan
  • Like 1

Share this post


Link to post
Share on other sites

19 July 2018.

4 days into experiment first signs of macroscopic mold and fungi present.

4 days First seedlings germinate

 

Any thoughts on how to combat this mold and fungi. One idea... spray with bleach.

 

My thought behind this is that the highly saturated soil will dilute out the bleach after it has had a few moments to kill the fungi and mold.

 

Anyone else tried this or have any suggestions.

 

19July2018_Day_4.jpg  Decided to drain this one at 2000 hrs and do a light sulfur dusting. I will reapply 2 Liters of H202 in the morning to see if this will help.Day4_19_July_2018_sulfur_dusting.thumb.jpg.866ff2f3c2e0d54d65fd5188b4ea6b0f.jpg

Edited by Inyan
added picture

Share this post


Link to post
Share on other sites

Replaced 2 Liters of h202 with fresh bottles today. Seeds are now soaking again. This is 5 days into the experiment and it is likely the last and only time I will replace the h202.h202_2_Liters.thumb.jpg.c8033e5d45f489c355aadce1caf89b95.jpg 

Share this post


Link to post
Share on other sites

Day6 21 July 2018

 

H202 has turned yellow today from prolonged contact with cacti soil. 5b534cf6567a0_Day621July2018h202yellow06.thumb.jpg.6fe431eae5341ebd1adbeb2a7c2e940e.jpg

 

Tested h202, still active as apparent by bubbling action.Day6_21_July_2018_active_9.thumb.jpg.a9e6db8ab36ab41ccc1842d6ace1359e.jpg

 

Fungus growth removed manually and appears halted today after treatment with 2 new Liters of h202 and light dusting of sulfur.

 

Seedlings continue to germinate.Day6_21_July_2018_.thumb.jpg.2cf94617f2a1efaa1ae3a20c364405cc.jpgDay6_21_July_2018_8.thumb.jpg.eaf66855e934e41b1fe5a60e1bb62e04.jpg

 

 

Share this post


Link to post
Share on other sites

Day 9

 

9_days_from_sowing_seedlings.thumb.jpg.62c627374915c70ae02e64715b31c995.jpg24 July

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×