HORTICULTURE SCIENCE
CROP PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A student did the experiment about the effect of light to plant growth. She put one plant in dark place and the other in the light place. After 4 days, she found that the plant in the dark place grow taller than in the light one. What the name of this phenomenon and which plant hormone involved?
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etiolation and auxin
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etiolation and abscisic acid
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epiolation and auxin
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epiolation and abscisic acid
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Explanation:
Detailed explanation-1: -The plants that were not exposed to light grew 15.7 millimeters more on average, and the difference of growth between no light and half light plants was 7.27 millimeters. In conclusion, the plants that were exposed to no light whatsoever, were the ones who grew significantly larger than the other plants.
Detailed explanation-2: -ANSWER: In a strict sense, plants do not grow faster in the dark; they grow slower. However, plants seem to grow faster in insufficient light due to rapid cell elongation. In other words, they don’t grow faster, they simply stretch.
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