Recipes for Unpurpled Tomatos
Hello,
I have an obsession to make perfectly green tomato seedlings, no purple. I keep getting it wrong. VPD, growing medium, ppfd, etc...
My current recipe, works great for everything except tomatos. I'm dieing to see perfectly green tomatosleaves on seedlings I know it's possible. - vpd target: .8 - temp high trigger: 79 F - humidity high trigger: 78% - light: 16h, 200 to 420 ppfd, 3x vsfd4500 in a 4x8 tent, 18 inches away. - water: ph 6.25, kept moist but no green moss growing. - ferts: grow big and cal 1/2 tsp per 4 L once a week max. - Medium: solo cups with ocean forest and drainage.
Any ideas what I am doing wrong? In the picture, the first batch is too purple and started curling to the point of pointlessness. You also see my second attempt in the solo cups, I tried to stress them less this time but I see the same thing happen. As they grow they turn more purple. The come up with their non leaf leaves and they are green, but they turn purple underneath as the weeks progress. Worse, when I take a plant out of the grow lights and look up thru the bottom with normal light, the purple is worse.
Please share any recipes you have where purple was not purplized but greenified instead... or if you see problems please help.
Hello,
I have an obsession to make perfectly green tomato seedlings, no purple. I keep getting it wrong. VPD, growing medium, ppfd, etc...
My current recipe, works great for everything except tomatos. I'm dieing to see perfectly green tomatosleaves on seedlings I know it's possible. - vpd target: .8 - temp high trigger: 79 F - humidity high trigger: 78% - light: 16h, 200 to 420 ppfd, 3x vsfd4500 in a 4x8 tent, 18 inches away. - water: ph 6.25, kept moist but no green moss growing. - ferts: grow big and cal 1/2 tsp per 4 L once a week max. - Medium: solo cups with ocean forest and drainage.
Any ideas what I am doing wrong? In the picture, the first batch is too purple and started curling to the point of pointlessness. You also see my second attempt in the solo cups, I tried to stress them less this time but I see the same thing happen. As they grow they turn more purple. The come up with their non leaf leaves and they are green, but they turn purple underneath as the weeks progress. Worse, when I take a plant out of the grow lights and look up thru the bottom with normal light, the purple is worse.
Please share any recipes you have where purple was not purplized but greenified instead... or if you see problems please help.