Scarification that mimics digestion?

All about seed grown plants. How-to information, progress reports, show of your results.
Post Reply
User avatar
Shane
Posts: 1075
Joined: Thu Sep 21, 2017 5:55 pm
Location: Los Angeles, CA (zone 10b)

Scarification that mimics digestion?

Post by Shane »

I've been reading about some of the seeds I purchased and plan to sow soon. At least one of them germinates better after it's been digested. I'm trying to figure out how I can mimic that to get higher germination. The obvious thing would be acid, but this is only part of digestion. Soaking the seeds in spit also comes to mind (for digestive enzymes). Not sure if that would really work though

Any ideas or tips on what I should try?
Los Angeles, California (USA)
Zone 10b (yearly minimum temperature 1-5° C)

Fishhook cacti are like cats, they only like to be petted in one direction
DaveW
Posts: 7383
Joined: Thu Dec 20, 2012 2:36 pm
Location: Nottingham, England/UK

Re: Scarification that mimics digestion?

Post by DaveW »

You could always feed them to the Budgie and tell it not to chew, then wait for the end product! :lol:
User avatar
Edwindwianto
Posts: 497
Joined: Tue Nov 19, 2019 12:43 am
Location: Bangkok - Thailand

Re: Scarification that mimics digestion?

Post by Edwindwianto »

DaveW wrote: Tue Feb 11, 2020 10:49 am You could always feed them to the Budgie and tell it not to chew, then wait for the end product! :lol:
Or just put them inside a medicinal capsule...swallow them...
The next morning...you know what to do

(This is just a joke 😁)
Last edited by Edwindwianto on Thu Feb 13, 2020 9:42 am, edited 1 time in total.
User avatar
Shane
Posts: 1075
Joined: Thu Sep 21, 2017 5:55 pm
Location: Los Angeles, CA (zone 10b)

Re: Scarification that mimics digestion?

Post by Shane »

I found an an answer in this paper :study:

The summery is there are two main types of scarification that occur in animals. One is mechanical (chewing). The other is chemical, in the stomach and intestines. They simulated intestinal digestion by soaking the seeds in intestinal matter from recently killed birds. They simulated stomach digestion with acid and pepsin (an enzime). Pepsin is readily available, so if you wanted to simulate digestion you could make your own mix

I also reread the paper that said one of my seeds germinates better after digestion. It turns out it ACTUALLY said the seeds germinate WORSE after digestion :happy7: . So I probably won't be doing any digestion experiments soon...
Los Angeles, California (USA)
Zone 10b (yearly minimum temperature 1-5° C)

Fishhook cacti are like cats, they only like to be petted in one direction
User avatar
7george
Posts: 2643
Joined: Tue Dec 30, 2014 7:49 pm
Location: Calgary, Canada
Contact:

Re: Scarification that mimics digestion?

Post by 7george »

Maybe it depends on the species.
This article insists acid promotes germinating:
Image
If your cacti mess in your job just forget about the job.
°C = (°F - 32)/1.8
User avatar
Shane
Posts: 1075
Joined: Thu Sep 21, 2017 5:55 pm
Location: Los Angeles, CA (zone 10b)

Re: Scarification that mimics digestion?

Post by Shane »

7george wrote: Thu Feb 27, 2020 5:05 am Maybe it depends on the species
I'm sure it does. The study I looked at (which I've lost the link to) looked at several plants and did conclude some germinate better after being eaten (and I think also one was unaffected)

The Mammillaria study is pretty interesting. I wonder why acid treatment leads to germination in the dark
Los Angeles, California (USA)
Zone 10b (yearly minimum temperature 1-5° C)

Fishhook cacti are like cats, they only like to be petted in one direction
User avatar
7george
Posts: 2643
Joined: Tue Dec 30, 2014 7:49 pm
Location: Calgary, Canada
Contact:

Re: Scarification that mimics digestion?

Post by 7george »

Shane wrote: Thu Feb 27, 2020 5:43 am
7george wrote: Thu Feb 27, 2020 5:05 am Maybe it depends on the species
I'm sure it does. The study I looked at (which I've lost the link to) looked at several plants and did conclude some germinate better after being eaten (and I think also one was unaffected)

The Mammillaria study is pretty interesting. I wonder why acid treatment leads to germination in the dark
Who knows? Maybe because the acid does what the light should be doing for germinating? Or because the excrements of the rodents lay in dark places? Does everything have a purpose?
If your cacti mess in your job just forget about the job.
°C = (°F - 32)/1.8
Post Reply