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Evaluation of the Resistance in Gherkin (Cucumis anguria L.) to Fusarium Wilt and Inheritance of the Resistant Gene

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  • Yuichi Matsumoto
  • Makoto Miyagi

Abstract

To breed gherkin cultivars with resistance to fusarium wilt, caused by Fusarium oxysporum f. sp. melonis, information about resistance and its of inheritance is necessary. Of the races of Fusarium oxysporum f. sp. melonis, race 2 is most prevalent and has been recognized since the 1930s in the United States. In this study, twenty three gherkin accessions were inoculated with Fusarium oxysporum f. sp. melonis race 2. Only one accession, PI 282442, showed resistance; all others were susceptible. In the F1 generation from the cross PI 282442 x PI 320052 (susceptible) all plants were susceptible. The F2 fits well the ratio 1 (resistant)- 3 (susceptible). In the BC1F1 generation (F1 x PI 282442), 14 plants were resistant and 16 were susceptible, a ratio that closely resembled the expected 1(resistant)- 1(susceptible) ratio. In BC1F1 generation (F1 x PI 320052), all 30 plants were susceptible. These results suggest that a single recessive gene controls resistance.

Suggested Citation

  • Yuichi Matsumoto & Makoto Miyagi, 2012. "Evaluation of the Resistance in Gherkin (Cucumis anguria L.) to Fusarium Wilt and Inheritance of the Resistant Gene," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 4(9), pages 145-145, July.
    • Handle: RePEc:ibn:jasjnl:v:4:y:2012:i:9:p:145
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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