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Genetic variation and response to selection for resistance to root‐knot nematodes in oil radish ( Raphanus sativus ssp. oleiferus )
Author(s) -
Bünte R.,
Müller J.,
Friedt W.
Publication year - 1997
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1997.tb00993.x
Subject(s) - biology , raphanus , terra incognita , meloidogyne incognita , brassica , botany , root knot nematode , white mustard , agronomy , horticulture , nematode , ecology
Based on a preliminary screening of a collection of cruciferous crops, such as oilseed rape ( Brassica napus L. ssp. oleifera Metzg.), oil radish ( Raphanus sativus L. ssp. oleiferus DC.), and yellow mustard ( Sinapis alba L.), some plants within the oil radish varieties showed resistance to the root‐knot nematodes Meloidogyne hapla Chitwood and M. incognita (Kofoid & White) Chitwood. Resistance tests of S 1 progeny of these selected genotypes revealed a quantitative nature of resistance to M. hapla. Only a few resistant individuals were found, but a significant effect of selection was observed. In contrast, the progenies of plants resistant to M. incognita showed a very low number of egg masses, suggesting that this resistance may be conferred by dominant major gene(s). The results indicate that resistance of oil radish to root‐knot nematodes may be effective and may thus provide new possibilities for the management of M. hapla and M. incognita.