fartoblue
Well-Known Member
I have just ordered some "fresher for longer bags" Apparently they keep fruit and veg fresher for longer to prevent ripening. I will let you know if they work when I get them.
The paragraph below was on the Fresh Bags advertising page which got me thinking should we or should not stop/reduce Co2 if we want nice buds, not just bigger ones.
Revealed: The All-Natural
Secret To Fresher Fruit & Veg
All fruit and vegetables give off ethylene gas when ripening. But ethylene gas causes fruit and veg to ripen. So it’s a vicious circle.
The reusable Fresher For Longer bags are impregnated with a unique, proprietary blend of active natural minerals which absorb that ethylene gas, break the vicious circle and slow down the ripening process, which is proven to make your fruit & vegetables last up to FOUR times longer.
And before you all start NO I do not have any connection with the company selling these bags.
It seems (when I google) that the jury is still out if we should or should not reduce Co2 over the last few weeks to allow plants to produce ethylene.
" These data suggest that Co2+ inhibited ethylene production by inhibiting the conversion of methionine to ethylene, a common step which is required for ethylene formation by higher plants" ?
"Elevated CO2 has been shown to significantly increase ethylene production in many plant species including rice, sunflower, and tomato (Dhawan et al., 1981, Seneweera et al., 2003, Wang et al., 2009). In contrast, high CO2 suppresses the ethylene signaling pathway in Medicago truncatula (Guo et al., 2014b)" ?
So how do you run your co2??
So far I have used Co2 for 5-6 runs. I grow in an outbuilding in Northern UK. If I have fans blasting cold air in from outside (to keep Co2 levels at 380-400ppm) I can't get temps above 23 (2kw heater also going most of the time with LED lights ). If I lower fan intake/outtake to keep temps up Co2 drops dramatically lights on.
I have seen a massive improvement since I started supplementing Co2. I have also never had any kind of pest in the room, no thrips, spider mites, nothing. Not sure if this is due to better management or the Co2.
This is how I do it. Please critique and comment. I am here to be educated.
I only run Co2 lights on.
I don't run Co2 for the first 10-14 days as I think it causes too much stretch. I also keep the temperature down to around 24 and lights around 600-700 par, canopy height. This is for the first 10 -14 days. I keep a record of the Co2 levels and they don't seem to consume more than the normal air levels of Co2 during this period.
I then run 1000ppm Co2. It's as much as I can get from my gas burner and to be truthful as much as I want from around the start of week 3.
I then run high temps (28-30) and high humidity (70/75 RH) when adding Co2 lights on. Much lower temp and humidity lights off. Plants have now grown into lights at around 900 - 1000 par.
I stop Co2, 2-3 weeks before harvest and reduce temps, humidity, light intensity and feed EC (ppm).
Hope you can comment Thank you.
The paragraph below was on the Fresh Bags advertising page which got me thinking should we or should not stop/reduce Co2 if we want nice buds, not just bigger ones.
Revealed: The All-Natural
Secret To Fresher Fruit & Veg
All fruit and vegetables give off ethylene gas when ripening. But ethylene gas causes fruit and veg to ripen. So it’s a vicious circle.
The reusable Fresher For Longer bags are impregnated with a unique, proprietary blend of active natural minerals which absorb that ethylene gas, break the vicious circle and slow down the ripening process, which is proven to make your fruit & vegetables last up to FOUR times longer.
And before you all start NO I do not have any connection with the company selling these bags.
It seems (when I google) that the jury is still out if we should or should not reduce Co2 over the last few weeks to allow plants to produce ethylene.
" These data suggest that Co2+ inhibited ethylene production by inhibiting the conversion of methionine to ethylene, a common step which is required for ethylene formation by higher plants" ?
"Elevated CO2 has been shown to significantly increase ethylene production in many plant species including rice, sunflower, and tomato (Dhawan et al., 1981, Seneweera et al., 2003, Wang et al., 2009). In contrast, high CO2 suppresses the ethylene signaling pathway in Medicago truncatula (Guo et al., 2014b)" ?
So how do you run your co2??
So far I have used Co2 for 5-6 runs. I grow in an outbuilding in Northern UK. If I have fans blasting cold air in from outside (to keep Co2 levels at 380-400ppm) I can't get temps above 23 (2kw heater also going most of the time with LED lights ). If I lower fan intake/outtake to keep temps up Co2 drops dramatically lights on.
I have seen a massive improvement since I started supplementing Co2. I have also never had any kind of pest in the room, no thrips, spider mites, nothing. Not sure if this is due to better management or the Co2.
This is how I do it. Please critique and comment. I am here to be educated.
I only run Co2 lights on.
I don't run Co2 for the first 10-14 days as I think it causes too much stretch. I also keep the temperature down to around 24 and lights around 600-700 par, canopy height. This is for the first 10 -14 days. I keep a record of the Co2 levels and they don't seem to consume more than the normal air levels of Co2 during this period.
I then run 1000ppm Co2. It's as much as I can get from my gas burner and to be truthful as much as I want from around the start of week 3.
I then run high temps (28-30) and high humidity (70/75 RH) when adding Co2 lights on. Much lower temp and humidity lights off. Plants have now grown into lights at around 900 - 1000 par.
I stop Co2, 2-3 weeks before harvest and reduce temps, humidity, light intensity and feed EC (ppm).
Hope you can comment Thank you.
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