Plants leaning toward the sun
Jay and Nancy Mone
jaymone at PAONLINE.COM
Sat Sep 4 07:07:49 EST 1999
I think you are probably correct in that when plants are grown in bright
light, phototropism is less pronounced. But it is still the major
determinant for many plants vis a vis their direction of growth. If you
go to a bright, sunny hillside and observe the trees, they all grow
straight up, where the overall light intensity is greatest, rather than
growing at 90 degree angles from the surface.
Plants grown in low light, however, don't "grow more" as you assert.
Rather, they grow lanky, producing less leaves, and more stalk, in an
effort to find brighter light. That's why a lot of houseplants that are
lush and full in the greenhouse turn into salad after a couple of months
in your living room.
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