Assessing the tolerance toGlobodera pallida of resistant potato genotypes by means of field and pot tests |
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Authors: | F K Arntzen T C A E Wouters |
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Institution: | (1) DLO-Centre for Plant Breeding and Reproduction Research (CPRO-DLO), P.O. Box 16, 6700 AA Wageningen, the Netherlands |
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Abstract: | Summary The tolerance toGlobodera pallida of 15 potato genotypes with a high level of resistance toG. pallida was assessed by measuring their tuber yield in heavily infested fields and in nematicide treated strips in the same fields.
Tolerance was also assessed in pots in the glasshouse by measuring the total biomass after 35 and 70 days growth in heavilyG. pallida infested soil and in uninfested soil. Large differences in tolerance between the genotypes were observed. High correlations
were observed between tolerance assessments made in the field experiments and between field and pot experiments. No relationship
was found between tolerance and maturity. Shoot and root dry weight were about equally affected by the nematode. |
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Keywords: | Solanum tuberosum Solanum vernei potato cyst nematodes resistance maturity leaf area biomass partitioning |
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