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Question
Criteria for essentiality in mineral nutrition were first shown by
Criteria for essentiality in mineral nutrition were first shown by
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Solution
The correct option is A Arnon
By the turn of the century, water and sand cultures were being used to study the mineral needs of plants under controlled conditions. In 1939, Arnon and Stout published the criteria for essentiality of a nutrient element. The criteria are as follows:
1) The element must be present in the plant for normal growth and completion of the life cycle. 2) The element is required specifically and cannot be replaced by another element.
3) The element must be directly involved in growth or metabolism.Therefore, the correct answer is option A.
By the turn of the century, water and sand cultures were being used to study the mineral needs of plants under controlled conditions. In 1939, Arnon and Stout published the criteria for essentiality of a nutrient element. The criteria are as follows:
1) The element must be present in the plant for normal growth and completion of the life cycle.
2) The element is required specifically and cannot be replaced by another element.
3) The element must be directly involved in growth or metabolism.
3) The element must be directly involved in growth or metabolism.
Therefore, the correct answer is option A.
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