Evaluation of Estonian apple cultivars and hybrids in Latvia
Laen...
Kuupäev
2020
Kättesaadav alates
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Estonian apples have always been popular in Latvia. At present, ‘Tiina’ is widely
grown commercially as well as in home gardens, and ‘Liivika’ is promising for organic and home
orchards. A number of new Estonian apple cultivars and hybrids have been screened in
1990–2020. Several new selections by breeder Kalju Kask (Polli) are included in field trials at
Institute of Horticulture - ‘Aule’, ‘Kastar’ and KK 201-2 (‘Karlote’) since 2011, ‘Kersti’ since
2014, KK 5-16 (‘Kelin’) with scab resistance gene Rvi6 and KK 2812 since 2015. Their trees
were planted on dwarfing rootstock B.9 as one-year-old whips at distances 1.5×4 m, in 3 to 5
replications with 2 or 1 trees. Commercial cultivars ‘Auksis’, ‘Antei’ and ‘Zarya Alatau’ were
used as controls. The highest productivity had ‘Aule’ and ‘Kastar’, the best fruit quality - ‘Aule’
and ‘Kelin’. ‘Aule’ has been highly esteemed also by some Latvian farmers. Fruits of ‘Kelin’ had
the best storage, which is crucial for a cultivar’s commercial success in Latvia. On the other side,
‘Kersti’ proved to be unsuitable for Latvian conditions, having very strong tree vigour and low
yields. ‘Kastar’ showed a high tendency to fruit cracking at calyx, while KK 201-2 and KK 2812
had irregular or low yields. Of newer acquisitions, scab resistant (gene Rvi6) ‘Virve’ and
KK 4-11 show good preliminary results and have been propagated for trials on dwarfing
rootstocks. Productivity, tree characteristics, fruit quality traits and taste panel evaluation of
Estonian apples in Latvia are discussed.
Kirjeldus
Märksõnad
Malus x domestica, productivity, fruit quality, storage, scab resistance, articles