Economic and biological assessment of foreign strawberry varieties in the Orenburg Region

Studies of the strawberry economic and biological parameters were carried out in the Orenburg branch of the Federal Research Center of Horticulture from 2019 to 2021. The objects of the study were varieties of foreign breeding. The zoned varieties Orletz and Zenga Zengana served as control. According to the main phenological phases of plant development, there was a difference in the onset of the flowering phase, in the observed varieties it was 3 — 5 days. The total duration of flowering on average ranged from 10 to 12 days. The beginning of berry ripening in the Orenburg region in early varieties occurs in the first decade of June, in middle repining varieties in the second decade of June. The average duration of the fruiting period was 12-21 days. According to winter hardiness, the most resistant during the observation period from 2019 to 2021 were the zoned varieties Orletz and Zenga Zengana, among the varieties of foreign breedig Bogota, Bounty, Venta, Ducat, Lord, Polka, Troubadour, Junia Smides. Over the years of research, strawberry mite damage was noted up to 1 point, on varieties: Florence, Honeoye, Corona, Rumba, Sonata, Troubadour, Bounty. White spotting was noted in 2019 on the varieties Polka, Vima Xima, Corona, as well as in the Zenga Zengana zoned variety. Brown spotting in a weak degree from 0.5 — 1 points affected all the studied varieties. On average, over 3 years of observation, the number of peduncles in early ripening varieties was 4 pcs.; for varieties of the average ripening period — 4-6 pcs. On the studied strawberry varieties, the number of berries ranged from 14 to 28 pcs./ bush. According to the yield assessment, the studied strawberry varieties Junia Smides, Bogota, Polka and Zenga Zengana are medium-yielding — more than 12 t/ha.

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