Question: Which is a common physiological disorder in carrot? (RJ ACF Agriculture 2018)
Options:
Malformation
Forking
Black heart
Hollow heart
• 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.