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In which stage, the rate of growth maxim...

In which stage, the rate of growth maximum ?

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To determine in which stage the rate of growth is maximum, we can analyze the stages of plant growth as follows: ### Step-by-Step Solution: 1. **Identify the Stages of Growth**: - There are four main stages in the growth of plants: - Lag Phase - Log Phase (also known as Exponential Phase) - Stationary Phase - Death or Decline Phase 2. **Understand Each Phase**: - **Lag Phase**: This is the initial phase where the plant is acclimatizing to its environment. Growth is slow as the plant is establishing itself. - **Log Phase**: In this phase, the plant experiences rapid growth. This is where the rate of growth is at its maximum. The cells are dividing and expanding at a high rate. - **Stationary Phase**: Growth slows down as resources become limited, and the rate of new cell production equals the rate of cell death. - **Death or Decline Phase**: In this phase, the plant begins to die, and growth ceases. 3. **Determine the Phase with Maximum Growth**: - Among these stages, the Log Phase is characterized by the highest rate of growth. This phase is where the plant is most actively growing, and it is often referred to as the exponential phase due to the rapid increase in size. 4. **Conclusion**: - Therefore, the stage in which the rate of growth is maximum is the **Log Phase**. ### Final Answer: The rate of growth is maximum in the **Log Phase** (Exponential Phase). ---
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ICSE-PLANT GROWTH AND DEVELOPMENT-REVIEW QUESTIONS (VERY SHORT ANSWER TYPE QUESTIONS ( WITH ANSWERS ))
  1. List various phases of plant growth.

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  2. A sigmoid growth curve has distinct four phases. Name them.

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  3. In which stage, the rate of growth maximum ?

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  4. Name the equipment used to measure rate of growth of short length plan...

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  5. What is dedifferentiation?

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  6. Give one example of dedifferentiation in plants.

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  7. Name a hormone associated with cell division.

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  8. Which hormone is associated with senescence or ageing?

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  9. Name hormone associated with growth inhibiting activities like dormanc...

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  10. Name the growth hormone associated with cell elongation especially sho...

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  11. Name a principal naturally occurring auxin present in plants.

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  12. On which plants did Darwin and Francis conduct their experiments ?

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  13. Who conducted the famous Avena curvature test ?

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  14. Where are auxins present in the plants ?

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  15. What is napthalene acetic acid ( NAA) ?

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  16. Name the fungus that causes foolish seedling disease.

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  17. Where are gibberellins present in greatest concentration?

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  18. Name the plant hormone that causes bolting in cabbage plants.

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  19. What is the effect of gibberelins on buds ?

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  20. What happnes if sugercane crop is sprayed with gibberellis ?

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