The germplasm release of M-62774 and M-62805, two potato clones with cold-sweetening resistance
Leszek Domański*, Ewa Zimnoch-Guzowska*, Maria Domańska*, Kazimiera Zgórska**,
***Plant Breeding and Acclimatization Institute (IHAR)
***Młochów Research Center
***05-831 Młochów, Poland
***IHAR, Jadwisin Research Center
***05-140 Serock, Poland
***National Food and Nutrition Institute
***61/63 Powsińska, 02-903 Warszawa, Poland
Two potato parental lines that have been released by the Plant Breeding and Acclimatization Institute, Młochów
Research Center in 2002 are outstanding in cold-sweetening resistance. Both
clones M-62774 and M-62805 showed low accumulation of reducing sugars in tubers
directly after storage for 4 months at 4°C. They had medium to high yielding ability, satisfactory tuber
appearance, increased starch content and high resistance to potato virus Y.
M-62774 had light chip colour and good stability of this trait over four years
at three storage treatments (8°C, 4°C, 4°C + reconditioning), while M-62805 was
capable of producing regularly light coloured chips after storage at: 8°C and at 4°C
followed by two-week reconditioning at 19°C. Both clones are male and female fertile and have been
successfully used in crossing programme.
Domański L., Zimnoch-Guzowska E., Domańska M., Zgórska K., Paczkowska M., 2004. The germplasm release of M-62774
and M-62805, two potato clones with cold-sweetening resistance. Folia Horticulturae 16/2: 33-40.