Question

What causes the blackening of rose petals?

A Insufficient water absorption Correct Answer Incorrect Answer
B Exposure to direct sunlight Correct Answer Incorrect Answer
C High humidity Correct Answer Incorrect Answer
D High anthocyanin content and low temperature Correct Answer Incorrect Answer

Solution

Blackening of rose petals, often termed "black tip," results from low temperatures during flowering, affecting certain rose varieties with high anthocyanin content, leading to petal discoloration.

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