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The effect of resistant cultivars of catch crops on the hatching of Heterodera schachtii
Author(s) -
COOKE D. A.
Publication year - 1985
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1985.tb03100.x
Subject(s) - heterodera schachtii , biology , hatching , agronomy , cultivar , nematode , heterodera , crop , horticulture , zoology , ecology , sugar beet
SUMMARY In laboratory tests with Heterodera schachtii , root leachates of nematode‐resistant and susceptible cruciferous crops stimulated egg hatches of up to 77% and 95% respectively. In these tests very little hatch occurred at 5°C or 10°C, more at 15°C and most at 20°C. In field experiments in which these crops were sown in September 1982 and August 1983 into soil infested with H. schachtii , numbers of viable eggs had decreased only slightly under resistant crops 4–5 months later. This was possibly because the soil was too cold and dry to permit a large proportion to hatch.