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  • ICAR and TNAU E-Course Summarized

    Summarized Notes
  • Which is a common physiological disorder in carrot? (RJ ACF Agriculture 2018)

    Question: Which is a common physiological disorder in carrot? (RJ ACF Agriculture 2018)

    Options:

    Malformation
    Forking
    Black heart
    Hollow heart

    ✅Explanation: Forking in carrots is a common disorder where the roots split or branch into two or more parts. This is often caused by uneven soil conditions or damage to the developing root tip.

    • Other Options Explanations:
    -A: Malformation: Physiological disorder of mango.
    -C: Black heart: Black heart is a physiological disorder of potatoes. Occur due to low oxygen at the time of storage.s
    -D: Hollow heart: Hollow heart is another disorder primarily affecting potatoes. Occur sue to high nitrogen fertilizer application.

    • Additional Information:

    • CARROT:

    ✏️Root splitting:
    -Splitting or cracking of carrot roots is a major problem.

    • Possible Reasons:
    -Wider spacing- as larger roots tend to split more.
    -Dry weather followed by wet weather is conducive to cracking of roots.
    -Increases as the amount of N in the soil increases especially the ammonical form.
    -Early cultivars tend to split more readily than late ones.

    • Management:
    -Grow resistant varieties.
    -Sow the seeds at close spacing.
    -Supply recommended dose of nitrogen.
    -Maintain optimum moisture in the field.
    -Harvest the crop at right maturity stage.

    ✏️Forking:
    -A common disorder in carrot and radish formed by the enlargement of secondary root growth.

    • Possible Reasons:
    -Excess moisture during the root development. It occurs on heavy soils due to soil compactness.

    • Management:
    -Avoid excessive moisture.
    -Avoid heavy soil for carrot production.

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