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On the inheritance of tuber resistance of solanum tuberosum to phytophthora infestans in the field

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Abstract

Data on the attack of the tubers of 2,036 F1 seedlings of 32 different cross combinations of potato varieties were collected. A survey is given of the field resistance of a large number of established varieties and of their parents.

From both sets of data it appears that crossing two highly resistant parents results in a high percentage of resistant offspring. When crossing a susceptible with a resistant parent one gets a majority of resistant F1 seedlings and even among the offspring of two susceptible varieties a few resistant seedlings are encountered.

The genes R 1 and R 3 for hypersensivity of the leaves exert a strong influence. Preliminary data suggest that the cambial layer just below the skin in this case is a strong barrier to the penetration of the parasite as is stated also with some varieties devoid of R-genes (Bravo, Libertas and others).

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References

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Authors and Affiliations

  1. Institute of Agricultural Plant Breeding, Wageningen

    H. J. Toxopeus

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  1. H. J. Toxopeus
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Toxopeus, H.J. On the inheritance of tuber resistance of solanum tuberosum to phytophthora infestans in the field. Euphytica 10, 307–314 (1961). https://doi.org/10.1007/BF00039101

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  • DOI: https://doi.org/10.1007/BF00039101

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