Development of 'Poroshiri', a chip processing potato variety with golden cyst nematode and common scab resistance

Breed Sci. 2023 Jun;73(3):343-348. doi: 10.1270/jsbbs.22084. Epub 2023 Jun 15.

Abstract

Golden cyst nematodes have threatened the cultivation of 'Toyoshiro', a major potato variety used for chip processing in Japan. Common scab is a soilborne disease that occurs in potato fields worldwide. To solve these problems, we crossed two US varieties and selected a clone that showed a slightly higher marketable yield and a significantly higher yield rate, compared with 'Toyoshiro', and had good chip processing quality, extreme resistance to cyst nematodes, and moderately high resistance to common scab. This clone was named 'Poroshiri'; it is the first variety released from the Calbee Potato breeding program.

Keywords: Poroshiri; common scab resistance; golden cyst nematode resistance; potato (Solanum tuberosum L.).