You've possibly heard from a number of sources that germinating seeds in the presence of hydrogen peroxide increases germination rates. The problem with this information is that it lacks some scientific evidence. I found a study that I'd like to share with our community called Development and Standardization of Rapid and Efficient Seed Germination Protocol for Cannabis sativa "On day 1, 1% H2O2 solution exhibited 82.5% germination as compared to 22.5% germination for 3% H2O2 group, 17.5% germination for 5% H2O2 group and 47.5% germination in water control group (Figure 1B). Interestingly, 10% H2O2 did not show any germination on day 1 due to its toxic effect (Figure 1)". Therefore germinating your seeds in 1% hydrogen peroxide will increase germination rates. Now its not just hearsay. EDIT: Also of note (from the same paper) where the authors used 5 year old seeds.:
Hydrogen peroxide comes in like 3% 5% 35% bottles. So the total percentage used can vary. Then the stuff gets weaker during storage. I never got clear results with the stuff and stopped using it on plants. Excellent tent cleaner thought.
Now onto the next question, does increasing germination rate by doing said activity, increase overall future plant health? Is it better to let them take their time? Is it a strain or cultivar dependant thing? I personally just use water to soak them 24 hours and whatever sinks get to moved into their perspective new homes. I even stopped pHing the water. Cutting down my time and resources spent on the plants is key to me. I personally think that temperature is probably the most important aspect if one is looking to rush thru the beginning stages. If that's the goal. And again, it raises questions; does it makes a healthier plant to never be touched by the cold and brought out of ideal growing conditions? I know some people feel that it's by the stresses we put them under in which we get them to produce what we are looking for. And that only by getting them used to the stresses, can we use it as a tool. Which also leads me to questions about if one uses the h202 as a root drench, should that be started earlier in their life or can I just wait til deep bloom to do it.. your info here, would lead me to believe I wouldn't want to use more than a 1% solution. Anyways, so many ways to grow, cheers to your h202 study! It definitely is useful stuff to have in the tool box!
well dammit! 11 more seeds didn't pop! I have the worst luck germing seeds at this time of year! I have to try this out
Hmmmm…. I’ve never really felt that total sterilization of seeds made sense. Everything I do in a living soil grow is done to promote bacteria and fungi, allowing them to work together towards a common goal… a healthy plant. Check out the latest from Jeff Lowenfeel, he has a new book “ Teaming with bacteria “. Here’s podcast where he discusses this very topic. https://www.shapingfire.com/podcast-feed/episode-96-teaming-with-bacteria-with-guest-jeff-lowenfels
I figure it's only water and an extra molecule of oxygen. I'm pretty confident these beans cracked because of this technique. I mean no sign of life, then boom. I always have trouble starting seeds when the weather changes
Damn - why are you waiting so long to transplant those? you're growing friggin plants in paper towels....2 inch tails and Cotyledons
it isn't just about sterility, which obviously is a factor, but the oxygen induces some early gene transcription, priming the seeds. I started my seeds recently and BOOM they go fast. But, even if just considering sterility, like buying a seed that is contaminated, could jeopardize an entire grow room.
@SitnSpin he ain't wrong u know. As soon as they crack, I plant them. Latest pics? ok, I won't be lazy... I have to transplant soon.
True! Im so distracted, and mental, i space out! Im going to drop more seeds as soon as the ac guy leaves! Sent from my SM-G960U using Grasscity Forum mobile app
3 more dropped. Wookie! put them on the h2o2. I've gone nutts! Straight Jonny apple seed! I don't know why I'm doing this? I mean with the Airbnb behind us and their next-door neighbors having hung strings of lights all around his yard, I can't grow in the yard anymore. ha!