Which of the following criteria is NOT required for an element to be considered 'essential' for a plant according to Arnon and Stout?
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Correct answer: The element must be present in the soil in high concentrations.
An element is essential if the plant cannot complete its life cycle without it, its requirement is specific, and it is directly involved in metabolism. High concentration in soil is not a criterion; in fact, micronutrients are essential despite being needed in minute quantities.
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More Essential Macro and Micronutrients for Plants questions
- Macronutrients are generally present in plant tissues in concentrations of more than:
- Which group of elements is predominantly obtained by plants from $CO_2$ and $H_2O$ rather than from the soil?
- Which of the following is a micronutrient required by plants?
- Which element is a critical component of energy-related chemical compounds like ATP?
- Magnesium is an essential element as it is the central atom in the structure of:
- Which micronutrient is required for the photolysis of water (splitting of water) during photosynthesis?