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Minimum concentration of an essential element below which plant growth is retarded, is termed as _________________.



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Answer is option C i.e. "Critical concentration"
The concentration of the essential element below which plant growth is retarded is termed as critical concentration. Below this minimum level, plants start to show nutrient deficiency.
While, optimum concentration is the most desirable or satisfactory level of a nutrient. Maximum concentration is the highest concentration of nutrient and nutrient toxicity occurs when excess consumption of a nutrient does harm to an organism.
The concentration of the essential element below which plant growth is retarded is termed as critical concentration. Below this minimum level, plants start to show nutrient deficiency.
While, optimum concentration is the most desirable or satisfactory level of a nutrient. Maximum concentration is the highest concentration of nutrient and nutrient toxicity occurs when excess consumption of a nutrient does harm to an organism.
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Question 1
Select the option which fills in the blanks (a, b, c, d) in the following paragraph with a proper combination of (i), (ii), (iii) and (iv), wherein (i) represents longer,(ii) represents shorter, (iii) represents prevents, and(iv) represents induces. Short day (SD) plants flower when night lengths are a than a critical dark period. Interruption of the dark period by a brief light treatment b flowering in SD plants. Long day (LD) plants flower when night length is c than a critical period. Shortening of the night with a brief light treatment d flowering in LD plants.

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Question Text | Minimum concentration of an essential element below which plant growth is retarded, is termed as _________________. |
Answer Type | Text solution:1 |
Upvotes | 150 |