Breaking Potato tuber Dormancy

Breaking Potato tuber Dormancy or Pagpapatubo


Planting of sprouted seed tubers result in early and uniform emergence. The dormancy of potato seed tubers may be broken by various methods:

  1. Use fluctuating temperature. Bring tubers to a warmer area for a short period before returning them to the farm or storage room. This could be done by holding tubers above the cooking areas.
  2. Use chemicals such as calcium carbide (CaC2) and gibberellic acid (GA3).

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Storage of seed potato

Storage of seed potatoes


The recommended storage for seed tubers is diffused light store (DLS). Tubers are placed in chiting trays, racks or shelves in a building or storage where light can pass through  transparent plastic sheets or fibreglass walls.

Sprouts from DLS have study sprouts. Sprouts from dark storage have long ad etiolated sprouts that are susceptible to damages during handling.

Vacant rooms or unused buildings can be renovated to serve as a diffused light store.

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