Research on kiwifruit source of genetic resistance to root-knot and lesion nematodes

Nicotra, A.; Simeone, A.M.; Di Vito, M.

Research on kiwifruit source of genetic resistance to root-knot and lesion nematodes

2003

Nicotra, A. | Simeone, A.M. | Di Vito, M.

The reaction of genotypes of Actinidia arguta, A. chinensis and A. deliciosa to Italian populations of the root-knot nematodes Meloidogyne arenaria, M. hapla, M. incognita and M. javanica and the root-lesion nematode Pratylenchus vulnus was evaluated in a glasshouse. One genotype of A. arguta, 17 of A. chinensis and 15 of A. deliciosa were evaluated for their reaction to M. arenaria, M. hapla, M. incognita and M. javanica; and 16 genotypes of A. chinensis were evaluated for their reaction also to P. vulnus. Five groups of about 15 seedlings of each genotype were transplanted in trays filled with steam sterilised sandy soil and inoculated with 10,000 eggs of each root-knot nematode species or 5,000 specimens of P. vulnus per plant. Two, 13, 1, and 5 genotypes of A. deliciosa were resistant to M. arenaria, M. hapla, M. incognita and M. javanica, respectively. One genotype of A. deliciosa was resistant to M. hapla and another to M. incognita. The remaining genotypes were susceptible to the root-knot nematode species tested. Twenty-one genotypes of A. chinensis were resistant to the root-lesion nematode P. vulnus.

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