Tamilnadu BoardEnglish MediumSTD 11BIO BOTANYMineral Nutrition3 Marks
Question
Explain the term critical concentration of minerals.
✓
Answer
To increase the productivity and also to avoid mineral toxicity knowledge of critical concentration is essential. Mineral nutrients lesser than . critical concentration cause deficiency symptoms. Increase of mineral nutrients more than the normal concentration causes toxicity. A concentration, at which 10% of the dry weight of tissue is reduced, is considered as toxic critical concentration.
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