Plants reaching for the light
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Peezo lo gro
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Splifferous
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when leaves are flat (perpendicular to the light) they maximize their absorption of light, and are able to maximize photosynthesis, and subsequently transpiration (provided that there is the correct nutrition available and enough water in the rhizosphere to maintain appropriate turgor pressure; relative to Vapor Pressure Deficit - relative humidity also plays a role in leaf posture).
if plants are unable to make proper use of all the light that hits their leaves, they will try to reduce the angle that the light is hitting the leaves. if there is plenty of water, they will raise the leaves; otherwise they will start to droop the leaves and approach wilting point.
in the pic above, the leaves of the top 2 nodes are raised slightly, but the first true leaves are relaxed. i read that to mean the plant is not under any real stress. if you want a short, squat plant, aim for that leaf posture. or raise the light a bit to lead her (like a carrot on a stick) into getting taller faster if that's what you want.
i would also think to give that plant in the pic some epsom salts and a maybe a tiny wee bit more N. maybe a dash of K. but that's just me.
if plants are unable to make proper use of all the light that hits their leaves, they will try to reduce the angle that the light is hitting the leaves. if there is plenty of water, they will raise the leaves; otherwise they will start to droop the leaves and approach wilting point.
in the pic above, the leaves of the top 2 nodes are raised slightly, but the first true leaves are relaxed. i read that to mean the plant is not under any real stress. if you want a short, squat plant, aim for that leaf posture. or raise the light a bit to lead her (like a carrot on a stick) into getting taller faster if that's what you want.
i would also think to give that plant in the pic some epsom salts and a maybe a tiny wee bit more N. maybe a dash of K. but that's just me.
Peezo lo gro
New Member
Thanks for that priceless knowledge Splifferous!when leaves are flat (perpendicular to the light) they maximize their absorption of light, and are able to maximize photosynthesis, and subsequently transpiration (provided that there is the correct nutrition available and enough water in the rhizosphere to maintain appropriate turgor pressure; relative to Vapor Pressure Deficit - relative humidity also plays a role in leaf posture).
if plants are unable to make proper use of all the light that hits their leaves, they will try to reduce the angle that the light is hitting the leaves. if there is plenty of water, they will raise the leaves; otherwise they will start to droop the leaves and approach wilting point.
in the pic above, the leaves of the top 2 nodes are raised slightly, but the first true leaves are relaxed. i read that to mean the plant is not under any real stress. if you want a short, squat plant, aim for that leaf posture. or raise the light a bit to lead her (like a carrot on a stick) into getting taller faster if that's what you want.
i would also think to give that plant in the pic some epsom salts and a maybe a tiny wee bit more N. maybe a dash of K. but that's just me.
Splifferous
New Member
you're quite welcome!