Abstract
Abstract Five peach rootstock selections show immunity to root-knot nematode disease caused by Meloidogyne incognita (Kofoid and White) Chitwood and M. javanica (Treub) Chitwood. These are the first peach rootstocks which remain free from galls when exposed to both these root-knot nematode species. They are derived from a 1949 cross in Chico, California, of Prunus davidiana Franch with a Chinese Peach. Resistance to the species M. incognita and M. javanica depends on different genes. Resistance to the former was inherited as a monofactorial dominant. Resistance to M. javanica appeared dependent on 2 or more dominant genes in both ‘Okinawa’ and P. davidiana , but P. davidiana progenies were completely free from visible galls. A third type of root-knot nematode was discovered in Florida in 1966. It reproduces readily on ‘Okinawa’, ‘Nemaguard’ and the other lines which have been selected for resistance or immunity to M. incognita and M. javanica .
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Claims 5
Claim · model-written summary
Five peach rootstock selections were immune to Meloidogyne incognita and M. javanica.
- Taxon
- peach
Prunus persicae1 - Material
- Five peach rootstock selectionse1
- Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitae1pest - Second interactor
- M. javanicaMeloidogyne javanicae1pest
- Outcome
- immunitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
e1“Five peach rootstock selections show immunity to root-knot nematode disease caused by Meloidogyne incognita (Kofoid and White) Chitwood and M. javanica (Treub) Chitwood”
Claim · model-written summary
Resistance to M. incognita in peach was inherited as a monofactorial dominant.
- Taxon
- PeachesPrunus persicat0
- Outcome
- Resistance to the formere2
- Qualifier
- monofactorial dominante2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Breeding Peaches for Root-knot Nematode Resistance”
e2“Resistance to the former was inherited as a monofactorial dominant”
Claim · model-written summary
Resistance to M. javanica in peach appeared to depend on 2 or more dominant genes in Okinawa and P. davidiana.
- Taxon
- PeachesPrunus persicat0
- Material
- P. davidianae3
- Interactor
- M. javanicaMeloidogyne javanicae3pest
- Outcome
- Resistance to M. javanicae3
- Qualifier
- dependent on 2 or more dominant genese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Breeding Peaches for Root-knot Nematode Resistance”
e3“Resistance to M. javanica appeared dependent on 2 or more dominant genes in both ‘Okinawa’ and P. davidiana”
Claim · model-written summary
P. davidiana progenies were completely free from visible galls.
- Taxon
- PeachesPrunus persicat0
- Material
- P. davidiana progeniese4
- Outcome
- visible gallse4
- Qualifier
- completely freee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Breeding Peaches for Root-knot Nematode Resistance”
e4“but P. davidiana progenies were completely free from visible galls”
Claim · model-written summary
A third root-knot nematode type reproduces readily on Okinawa and Nemaguard, lines selected for resistance.
- Taxon
- PeachesPrunus persicat0
- Material
- Okinawae5
- Interactor
- root-knot nematodeMeloidogynee5pest
- Outcome
- reproduces readilye5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Breeding Peaches for Root-knot Nematode Resistance”
e5“A third type of root-knot nematode was discovered in Florida in 1966. It reproduces readily on ‘Okinawa’, ‘Nemaguard’ and the other lines”