Partial resistance of sugarbeet to beet cyst eelworm (Heterodera schachtii
Schm.) |
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| Authors: | W Heijbroek |
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| Institution: | (1) Instituut voor Rationele Suikerproductie, Bergen op Zoom, the Netherlands |
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| Abstract: | Summary Within Beta vulgaris and B. maritima origins some partial resistance to beet cyst eelworm was found which could be raised to a very limited extent by selection. However after the second backcross to commercial sugar beet varieties and successive selection of the inbreds this resistance was lost. It was demonstrated that in the rootsystem of resistant plants as much nematodes penetrate and develop as in susceptible ones but the ratio between males and females is different. It was therefore quite probable that this resistance is polyfactorial and merely recessive. |
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| Keywords: | Beta vulgaris sugarbeet Beta maritima partial resistance Heterodera schachtii beet cyst eelworm |
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