Which of the following indicates symptoms of low temperatures in plants?

Prepare for the Pest Control Adviser Plant Pathogens Test with our interactive and informative quizzes. Explore engaging flashcards and multiple choice questions, each question accompanied by hints and detailed explanations to boost your confidence for the real exam!

Wilting and flaccid tissues are clear indicators of low temperatures affecting plants. When plants experience cold weather, the physiological processes can slow down or become impaired, leading to a lack of adequate water uptake and nutrient transportation. This may result in turgor loss, where the plant cells lose their rigidity and become flaccid.

In chilly conditions, the soil can become compacted or frozen, restricting root growth and function. This limitation on root activity can prevent the plant from absorbing water effectively, causing the affected tissues to droop and appear wilted. This symptom is particularly pronounced in sensitive plant varieties or during unexpected frost events.

In contrast, sunscald typically pertains to damage caused by excessive heat and direct sun exposure, while lodging refers to the bending or breaking of stems, often due to strong winds or heavy rainfall rather than temperature stress. Green shoots usually indicate healthy growth and are not a symptom associated with low temperatures.

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