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Aquatic plants require special adaptations for prolonged inundation in water, and for floating at the water surface. The most common adaptation is the presence of lightweight internal packing cells, aerenchyma , but floating leaves and finely dissected leaves are also common.
Aquatic plants are used to give the freshwater aquarium a natural appearance, oxygenate the water, absorb ammonia, and provide habitat for fish, especially fry (babies) and for invertebrates. Some aquarium fish and invertebrates also eat live plants. Hobbyists use aquatic plants for aquascaping, of several aesthetic styles.
Since roots are the parts responsible for water searching and uptake, they can detect the condition of dry soil. The signals sent are an early warning system - before the water stress gets too severe, the plant will go into water-economy mode. [11] As compared to other plants, xerophytes have an inverted stomatal rhythm.
Air plants are epiphytes, meaning they anchor to a host plant by their roots. They do not need soil to grow, absorbing moisture and nutrients through little scale-like structures, called trichomes ...
This algae, also known as Red grass plant, has been available in the aquarium trade for a long time. Since it originates from deep water, it remains easy to care for, even without strong lighting. The algae radiates outward as it grows and will form dense fronds under good water quality and moderate lighting. [179] 5 in (12.7 cm) [179]
Hydroponic systems use less water than traditional farming due to the system's ability to recirculate water rather than absorb it from the soil or lose it to evaporation. [61] Nutrients are also efficiently delivered to plant roots, minimizing nutrient waste and lowering the cost of fertilizing crops.
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