Screening Cucumber for Resistance to Downy Mildew Caused by Pseudoperonospora cubensis (Berk. and Curt.) Rostov.

@article{Call2012ScreeningCF,
  title={Screening Cucumber for Resistance to Downy Mildew Caused by Pseudoperonospora cubensis (Berk. and Curt.) Rostov.},
  author={Adam D. Call and Adam D. Criswell and Todd C. Wehner and Urszula Kłosińska and Elżbieta U. Kozik},
  journal={Crop Science},
  year={2012},
  volume={52},
  pages={577-592}
}
Downy mildew, a foliar disease caused by the oomycete Pseudoperonospora cubensis (Berk. and Curt.) Rostov. is one of the most destructive diseases of cucumber (Cucumis sativus L.). Moderately resistant cultivars are available, but yield losses are high without the use of fungicides. Higher levels of resistance are needed to reduce the need for fungicides. The objective of this study was to identify new sources of resistance to downy mildew among Plant Introduction accessions from the U.S… 

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References

SHOWING 1-10 OF 59 REFERENCES

Downy Mildew Resistance of the Cucumber Germplasm Collection in North Carolina Field Tests

Evaluating all available plant introduction accessions of cucumber for downy mildew resistance under field conditions in North Carolina found nine cultigens to be more resistant than the most resistant elite cultivars and breeding lines tested.

Downy mildew of Cucurbits (Pseudoperonospora Cubensis): the Fungus and its hosts, distribution, epidemiology and control

Apart from the leaf wetness essential for infection, the factors determining disease progress are: rate of foliage growth and physiological age of the host; amount of primary inoculum available, light, and the rate at which lesions necrotize.

Downy mildew of cucurbits.

Downy mildew of cucurbits, caused by the fungus Pseudoperonospora cubensis, is found annually on squash, cucumbers, pumpkins, muskmelons, and other cucurbits grown in all areas of Florida. This same

A set of Cucurbitaceae taxa for differentiation of Pseudoperonospora cubensis pathotypes

The data about host genera and pathogen variation summarized here fully support previous reports about the existence of distinct physiological forms (pathotypes and races) of P. cubensis, and evidence that such forms may be delimited based on host genus, species and intraspecific specificities is presented.

Relation in the inheritance of resistance to Pseudoperonospora cubensisrost and Sphaerotheca fuligineapoll. in cucumber (Cucumis sativusl. L.)

This gene s for resistance of the hypocotyl is linked to or identical with gene p for resistance to Pseudoperonospora cubensis and is present in the cultivars Ashley, Poinsett, Natsufushinari, Pixie, Taipei.

A new pathotype ofPseudoperonospora cubensis causing downy mildew in cucurbits in Israel

Host range pathogenicity studies revealed high compatibility of the new population with cucumber, melon, pumpkin and summer squash but low compatibility with watermelon, and this new population was designated as pathotype 6.

The combined effects of temperature, leaf wetness, and inoculum concentration on infection of cucumbers with Pseudoperonospora cubensis.

The infection of susceptible cucumber leaves by Pseudoperonospora cubensis was investigated under controlled conditions in a 6 × 3 × 4 factorial experiment with 72 combinations of temperature,

Linkage of random amplified polymorphic DNA markers to downy mildew resistance in cucumber (Cucumis sativus L.)

A study was conducted to identify random amplified polymorphic DNA markers linked to the downy mildew resistance gene (dm) which would be suitable for marker assisted selection (MAS), and these genetic markers may be exploited to develop an efficient MAS strategy for breeding resistant cucumber cultivars.

The significance of pronounced divergences in the distribution ofpseudoperonospora cubensis on its crop hosts

Pseudoperonospora cubensis is common throughout the world onCucumis crops (cucumber, melon); less common onCucurbita crops (squash, pumpkin, marrow), from which it is absent in Europe and parts of
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