Resistance of Trisomic and Diploid Hybrids of Beta vulgaris and B. procumbens to the Sugarbeet Nematode, Heterodera schachtiis Arnold

Authors

  • E. Steele
  • Helen Savitsky

Abstract

Trisomic and diploid hybrids of sugarbeet (Beta vulgaris L.) X wild beet (B. procumbens Chr. Sin.) inherited the gene for resistance to Heterodera schachtii Schm. from B. procumbens. The hybrids showed partial resistance to H. schachtii, manifested in failure of larvae to reach maturity. Although significantly greater numbers of female nematodes developed on plants inoculated with populations from the Netherlands or Italy than on plants inoculated with a population from the Saliuas Valley, California. the totals for all populations on resistant plants were small. Greater uumhers of males than females developed on root-slice cultures of resistant hyhrids when compared to a susceptible cultivar. Key words: interspecific hybrids. Beta species, heels, nematode, resistance, geographic populations.

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Published

1981-07-15

Issue

Vol. 13, No. 3 (July 1981)

Section

Articles

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