Abstract
Goal. To identify new sources of resistance against stem nematode among potato breeding material and provide recommendations for the involvement of the most promising genotypes in breeding practice. Methods. The research was conducted in the breeding laboratory of the Polissia Research Department of the Institute for Potato Research, during 2018—2022, with promising source material of its own potato breeding, interspecific hybrids of the laboratory of genetic resources of the Institute for Potato Research and potato varieties and studied their resistance to stem nematode on an infectious background. Results. It was found that among the studied hybrid potato material, up to 9% of highly resistant forms, about 15—29% with relatively high and 41—62% of genotypes with moderate resistance were distinguished. Among the evaluated potato varieties, only a small number demonstrate high resistance, while the majority exhibit moderate resistance to the nematode. Sources with high, relatively high and moderate resistance to the nematode among promising potato hybrids were identified. Selected genotypes are the following: G.10.7/13, P.14.17-14, P.15.5/27, G.09.8-14, Z.14.64/3, P.13.26/13, G.08.194/122, Z.14.64-2, G.15.1-3, Z.14.49-7 and P.14.43-18 combine resistance to stem nematode with high expression of the main economically valuable traits. It was found that the breeding material that showed moderate resistance to the nematode was created with the participation of potato varieties: Santarka, Radomysl, Irbytskyi, Podoliia, Bellarossa, Satina, Tyras, Vektar and Hurman. As a result of targeted breeding work, three new potato varieties have been created: Fanatka, Rostavytsia and Dzhavelina, characterised by high productivity, drought tolerance, and resistance to stem nematode and quarantine microorganisms. Conclusions. We recommend using the selected stem nematode-resistant hybrids in breeding work to develop resistant potato varieties. To limit the spread and development of the nematode, we recommend cultivating the suggested resistant potato varieties.
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Claims 9
Claim · model-written summary
Up to 9% of hybrid potato forms were highly resistant to stem nematode.
- Taxon
- potato
Solanum tuberosume0 - Material
- hybrid potato materiale0
- Interactor
- stem nematodet0pest
- Outcome
- highly resistant formse0
- Value
- up to 9%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“among the studied hybrid potato material, up to 9% of highly resistant forms”
t0“potato breeding material against stem nematode”
Claim · model-written summary
About 15—29% of hybrid potato genotypes had relatively high nematode resistance.
- Taxon
- potatoSolanum tuberosumt0
- Interactor
- stem nematodet0pest
- Outcome
- relatively highe0
- Value
- 15—29%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“about 15—29% with relatively high”
t0“potato breeding material against stem nematode”
Claim · model-written summary
Some 41—62% of hybrid potato genotypes had moderate nematode resistance.
- Taxon
- potatoSolanum tuberosumt0
- Material
- genotypese0
- Interactor
- stem nematodet0pest
- Outcome
- moderate resistancee0
- Value
- 41—62%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“41—62% of genotypes with moderate resistance”
t0“potato breeding material against stem nematode”
Claim · model-written summary
Few evaluated potato varieties showed high resistance; most showed moderate resistance to the nematode.
- Taxon
- potatoSolanum tuberosume0
- Material
- potato varietiese0
- Outcome
- high resistancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the evaluated potato varieties, only a small number demonstrate high resistance, while the majority exhibit moderate resistance to the nematode.”
Claim · model-written summary
Selected potato genotypes combined stem nematode resistance with high expression of economically valuable traits.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Selected genotypese0
- Interactor
- stem nematodee0pest
- Outcome
- resistance to stem nematode with high expression of the main economically valuable traitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selected genotypes are the following: G.10.7/13, P.14.17-14, P.15.5/27, G.09.8-14, Z.14.64/3, P.13.26/13, G.08.194/122, Z.14.64-2, G.15.1-3, Z.14.49-7 and P.14.43-18 combine resistance to stem nematode with high expression of the main economically valuable traits.”
t0“potato breeding material against stem nematode”
Claim · model-written summary
Moderately resistant breeding material was created with participation of nine named potato varieties.
- Taxon
- potatoSolanum tuberosume0
- Material
- breeding materiale0
- Outcome
- moderate resistance to the nematodee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the breeding material that showed moderate resistance to the nematode was created with the participation of potato varieties: Santarka, Radomysl, Irbytskyi, Podoliia, Bellarossa, Satina, Tyras, Vektar and Hurman.”
Claim · model-written summary
Three new potato varieties had high productivity, drought tolerance, and resistance to stem nematode and quarantine microorganisms.
- Taxon
- potatoSolanum tuberosume0
- Material
- Fanatka, Rostavytsia and Dzhavelinae0
- Interactor
- stem nematodee0pest
- Second interactor
- quarantine microorganismse0pathogen
- Outcome
- high productivity, drought tolerance, and resistance to stem nematode and quarantine microorganismse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three new potato varieties have been created: Fanatka, Rostavytsia and Dzhavelina, characterised by high productivity, drought tolerance, and resistance to stem nematode and quarantine microorganisms.”
Claim · model-written summary
The authors recommend selected resistant hybrids for breeding resistant potato varieties.
- Taxon
- potatoSolanum tuberosume0
- Interactor
- stem nematodee0pest
- Outcome
- using the selected stem nematode-resistant hybrids in breeding work to develop resistant potato varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We recommend using the selected stem nematode-resistant hybrids in breeding work to develop resistant potato varieties.”
Claim · model-written summary
The authors recommend cultivating resistant potato varieties to limit nematode spread and development.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- cultivating the suggested resistant potato varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To limit the spread and development of the nematode, we recommend cultivating the suggested resistant potato varieties.”