Phototropism is a response to light. Hydrotropism is a response to water. One tropism not covered in the video that is very interesting is Thigmotropism – a response to touch or pressure. The tropism can be positive, like in the Venus Flytrap or the Tendrils of a plant wrapping around or attaching to a surface.
Q. How do you revive an uprooted plant?
When a plant has been uprooted, you must act quickly and decisively in order to save it. First, inspect the rootball carefully for breaks and damage. If the roots are white and relatively intact, your plant is healthy, so wet the rootball well and replant it where it belongs.
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Q. Why uprooted plants dry and die?
The root system of a plant is generally speaking, the heart of its circulatory system. You tear out its heart, it cannot feed itself nor can it use hydrostatic pressure to circulate the food it would have absorbed from the medium it is rooted in. You uproot it, it typically dies.
Q. Why do plants die when moved?
Small changes in light, humidity, temperature and water affect how well the plant takes to its new home. Water stress is one of the biggest culprits for a plant’s death in a new location. A plant moved to a site with soggy or poorly draining soil struggles equally; the root system may be drowned and deprived of oxygen.
Q. Why does a plant die when it is pulled out of soil?
Most soils have a large supply of nutrients in them, and they get taken up by plants when plants absorb water. Nutrients need to be added to replace what is taken out, and the best way to do this is test the soil. Too many nutrients, and it pollutes streams and groundwater, and too little, the plants may die.
Q. Is the closure of mimosa leaves a Thigmonastic response?
Mimosa pudica is a seismonastic plant in which the leaves close and the petiole hangs down in response to wind, vibration and touch as a defense mechanism for protection from animals and some insects (Bose 1902, 1907, 1913, 1918, 1926, 1928). This plant also responds to electrical stimulation.
