Watering a plant with sugar water will usually harm it because it makes soil water less available to the plant. In technical terms, it lowers the water potential of the soil water by lowering the osmotic potential. Water flows from higher to lower water potential. The water potential in the plant must be lower than the soil water potential in order for water to flow from the soil into the plant.
Plant roots are not adapted to absorb sugar. Plants make all the sugars they require via photosynthesis.
Plant water relations are discussed in college introductory botany texts, plant physiology texts or soil science texts.
Sugar water effect plants...
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ReplyDeleteHello I am an eighth grader who is competing in science fair, and I was wondering if you could tell me where you acquired this information because it would be really helpful to me and my partner if you gave us some sources. (Our science experiment is about whether sugar affects plants more than aspartame does.) Thank you.
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