The effects of desiccation and root diffusates from potato and mustard on eggs of the white potato cyst nematode Globodera pallida |
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Authors: | J. M. S. FORREST |
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Affiliation: | Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA |
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Abstract: | Following exposures to potato root diftusate of between 6 and 12 h, desiccation killed a proportion of juveniles in eggs of G. pallida and affected the hatching behaviour of survivors. In hatching tests of 9 wk duration, more juveniles hatched in the final wk from cysts, which were soahed and dried alternately for 9 wk than from cysts soaked in tap water for the final 2 wk only. Mustard root diffusate prevented eggs previously stimulated by potato root diffusate from hatching, but it did not alleviate the effects of desiccation. |
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