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In direct sunlight, plants face desiccation and exposure to UV rays, and must expend energy producing pigments to block UV light, and waxy coatings to prevent water loss. Plants adapted to shade have the ability to use far-red light (about 730 nm) more effectively than plants adapted to full sunlight.
Most vegetables are full-sun plants that require at least 8 hours of direct light to grow outdoors; however, plants like tomatoes generally need 16-18 hours of bright light to fruit inside.
Many plants lose much of the remaining energy on growing roots. Most crop plants store ~0.25% to 0.5% of the sunlight in the product (corn kernels, potato starch, etc.). Photosynthesis increases linearly with light intensity at low intensity, but at higher intensity this is no longer the case (see Photosynthesis-irradiance curve). Above about ...
Don't forget to read the plant tag so you choose plants for the right conditions. Full sun means 6 or more hours of direct sunlight per day, while part sun is about half that. Shade means no ...
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Shade-tolerant species are species that are able to thrive in the shade, and in the presence of natural competition by other plants. Shade-intolerant species require full sunlight and little or no competition. Intermediate shade-tolerant trees fall somewhere in between the two.
In parallel, plant physiologists studied leaf gas exchanges using the new method of infrared gas analysis and a leaf chamber where the net photosynthetic rates ranged from 10 to 13 μmol CO 2 ·m −2 ·s −1, with the conclusion that all terrestrial plants have the same photosynthetic capacities, that are light saturated at less than 50% of ...
This plant will require fertilizing once a month in the offseason to maximize healthy growth come summer. It does best in USDA Hardiness Zones 8 to 10. ... These plants require full sun and do ...
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