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Method for producing potato microtubers

  • US 5,854,066 A
  • Filed: 12/02/1996
  • Issued: 12/29/1998
  • Est. Priority Date: 04/03/1995
  • Status: Expired due to Fees
First Claim
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1. In a method for producing potato microtubers, comprising a first step of shoot propagation wherein virus-free potato plantlets are cultured in a medium with a relatively low sugar concentration under a relatively large quantity of light irradiation per day, and a second step of tuber formation wherein the resultant potato plants are cultured in a medium with a relatively high sugar concentration under a relatively small quantity of light irradiation per day, the improvement comprising the culturing in the first step being carried out in the presence of an effective shoot-propagating amount of exogenous ethylene supplied by an ethylene-generating agent, and the culturing in the second step being carried out in the absence of exogenous ethylene.

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