How A Plant Works

MajoR_TokE

Well-Known Member
Leaves are where photosynthesis - the process in which sunlight combines with CO2 and water and is taken up by the roots to manufacture food (carbohydrates) for the plant - takes place and oxygen is released as a by-product. Plants regulate small openings, stomata, on leaf undersides to allow CO2 to enter and oxygen to exit. When open, stomata allow water vapor to escape in the process of transpiration.

Roots anchor a plant in the ground and absorb water, nutrients, and air. Hydroponics allows absorption of water, nutrients, and air at an accelerated rate. Tiny root hairs increase the surface area for absorption. These root hairs are very delicate and must be moist at all times. Large roots are similar to stems. They transport water and dissolved minerals (fertilizer) in the phloem.

Stems have vascular systems to transport water and nutrients throught the plant. The xylem carries water and dissolved minerals from roots to leaves. The phloem transports food manufactured by the leaves to the stem and roots. The vascular cambium is the growth zone that produces xylem on the one side and phloem on the other. The stem also supports the plant and bears leaves, buds, flowers. and fruit.

Plants have five basic needs. Each one amounts 20 percent of a plants ability to grow to its maximum potential. When all of these needs are met at the maximum, the result is maximum growth (20% x 5= 100%)! If one of the needs arrives at only 15 percent, all growth is impaired equally (15% x 5= 75%). If two or more of the basic need are not met, growth slows quickly. Even with the best hydroponic system money can buy, in a garden where relative-air humidity is 80 percent when it should be about 50 percent, growth will be limited. The dollars and high hopes invested in a hydroponic system can easily be 'dashed' in a cloud of hot, humid air.

Air 20%
- Temperature
- Humidity
- CO2 and O2 content

Light 20%
- Spectrum
- Intensity
- Photoperiod

Water 20%
- Temperature
- pH
- EC
- Oxygen content

Nutrients 20%
- Composition
- Purity

Growing Medium 20%
- Air content
- Moisture content
 

Crayola

Well-Known Member
yeah that really is an awesome reference. props toke :-)

under "Water 20%" though, what is EC?
 

Crayola

Well-Known Member
wow! green i had no idea electrical conductivity of water affected a plant's growth haha! that's pure insanity. that's really interesting, i'll have to read up on that. :-)
 
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