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Deficiency Symptoms of Essential Elements MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
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Deficiency Symptoms of Essential Elements is considered one of the most asked concept.
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17 Questions around this concept.
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EASYManganese is required in:
Which one of the following elements in plants is not remobilized?
Necrosis is seen in plants due to the deficiency of
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Which of the following statements can best explain the term critical concentration of an essential element?
Which of the following elements is not remobilized in plants?
Concepts Covered - 0
Deficiency Symptoms of Essential Elements
- The concentration of the essential element below which plant growth is retarded is termed as critical concentration.
- The element is said to be deficient when present below the critical concentration.
- The kind of deficiency symptoms shown in plants include chlorosis, necrosis, stunted plant growth, premature fall of leaves and buds, and inhibition of cell division
- Chlorosis is the loss of chlorophyll leading to yellowing in leaves.
- This symptom is caused by the deficiency of elements N, K, Mg, S, Fe, Mn, Zn and Mo.
- Necrosis, or death of tissue, particularly leaf tissue, is due to the deficiency of Ca, Mg, Cu, K. Lack or low level of N, K, S, Mo causes inhibition of cell division.
- Some elements like N, S, Mo delay flowering if their concentration in plants is low
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