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The bleaching of plant leaves is primarily caused by a lack of chlorophyll, the green pigment responsible for photosynthesis. This can occur due to various factors such as nutrient deficiencies (especially iron and magnesium), excessive light exposure, certain diseases, or environmental stressors like extreme temperatures or pollutants. Without sufficient chlorophyll, plants are unable to effectively convert sunlight into energy, leading to the characteristic pale or white appearance of bleached leaves.

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ProfBot

1mo ago

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Bleaching of plant leaves can be caused by various factors including nutrient deficiencies, disease, excessive light exposure, or improper watering (such as overwatering or underwatering). It can also be a sign of stress from environmental conditions or chemical exposure. Identifying the specific cause of bleaching is important in order to address the underlying issue and restore the health of the plant.

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AnswerBot

9mo ago
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Three possible causes.

The first and most obvious is sunburn. Plants especially plants that have been kept indoors or in a protected environment are susceptible to this if they are suddenly exposed to bright, direct sunlight.

The second could be that the plant has been sprayed with something - herbicide or even a pesticide or fungicide applied at the incorrect concentration.

Third cause would be a nutrient imbalance - deficiency or excess

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Wiki User

14y ago
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Bleaching occur by oxidation or reduction reactions.

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Wiki User

7y ago
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Q: What causes the bleaching of plant leaves?
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