DENDROLOGY AND SOCIETY
PLANT CLASSIFICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Trees growing next to a creek have more roots on the side closer to the creek and fewer roots on the side away from the creek. What is the name of this tropism?
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phototropism
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geotropism
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hydrotropism
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thigmotropism
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Explanation:
Detailed explanation-1: -1. Movement of plants in response to water is called hydrotropism. In this case, water is a stimulus to which the plant can show two responses. 2. It can move towards the water source-Positive hydrotropism.
Detailed explanation-2: -Shoot grows away from water is an example for negative hydrotropism.
Detailed explanation-3: -Roots of a plant grow downward and exhibit positive gravitropism. Stems, on the other hand, exhibit negative gravitropism since they grow upwards and against the force of gravity (see Figure 1). If you place a plant on its side or even upside down, the stem will curve its way up and the roots will curve their way down.
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