Comparison of sources of resistance to leaf aphids in lettuce (Lactuca sativa L.)

  title={Comparison of sources of resistance to leaf aphids in lettuce (Lactuca sativa L.)},
  author={Kees Reinink and Frans L. Dieleman},
Three lines of lettuce with resistance to Nasonovia ribisnigri, based on the dominant Nr-gene, and four lines selected for partial resistance to Myzus persicae were tested against three species of leaf aphid: N. ribisnigri, M. persicae and Macrosiphum euphorbiae. The effect of the Nr-gene was also studied in a segregating F2 population. In the material tested, resistance to N. ribisnigri was exclusively based on the Nr-gene, lines selected only for resistance to M. persicae showed no resistance… CONTINUE READING

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The spread of lettuce mosaic in the field

H. EeninkA.
Ann . Appl . Biol . • 1951

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