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Tropical Fruit Discussion / Psidium and Passiflora Germination
« on: April 01, 2023, 10:54:50 AM »
Thanks everyone for past advise on my posts and on others. I have learned so much and come a long way in the nine months or so I've been using this site.
I'm been on a buying streak for several months and have been planting a ton of seeds with overall good success. I have held off on planting/ germinating Psidium and Passiflora seeds, but I don't want to wait any longer. I have custom indoor where I use a combination of florescent (T5) and LED as well as a tiny outdoor greenhouse. The two mediums I use are Light Warrior by Fox Farms and my own coco coir mix with sulfur and mycorrhizal and generous amounts of pearlite. I probably have about a dozen species each ready to plant, most of them are not common varieties especially the Psidiums which are mostly Cerrado varieties.
My main question has to do with pre-treatment I've read about gibberellic acid for Psidium's and sulfuric acid for Passiflora and just hot water presoaking for a few days combined with sanding or scarification. I have a slight preference not using acid just because I think there is also a risk of killing or damaging the seed, but if the upside is greater I'm willing to try. Anyone have any experience with this that may help?
Thanks,
Chris
I'm been on a buying streak for several months and have been planting a ton of seeds with overall good success. I have held off on planting/ germinating Psidium and Passiflora seeds, but I don't want to wait any longer. I have custom indoor where I use a combination of florescent (T5) and LED as well as a tiny outdoor greenhouse. The two mediums I use are Light Warrior by Fox Farms and my own coco coir mix with sulfur and mycorrhizal and generous amounts of pearlite. I probably have about a dozen species each ready to plant, most of them are not common varieties especially the Psidiums which are mostly Cerrado varieties.
My main question has to do with pre-treatment I've read about gibberellic acid for Psidium's and sulfuric acid for Passiflora and just hot water presoaking for a few days combined with sanding or scarification. I have a slight preference not using acid just because I think there is also a risk of killing or damaging the seed, but if the upside is greater I'm willing to try. Anyone have any experience with this that may help?
Thanks,
Chris