Articles
Growth and production of cultivars on Wangenheim rootstock under Latvian meteorological conditions
Article number
1450_10
Pages
75 – 82
Language
English
Abstract
Dwarfing enables the cultivation of smaller trees, earlier harvests, faster crop growth, and more efficient use of agricultural land.
The Wangenheim rootstock as rootstock has been grown relatively rarely so far in Latvia, due to long winter frost periods, spring thaws, and a relatively short vegetation season.
This study aimed to determine differences in the growth and production performances of the Latvian cultivars ‘Ance’, ‘Adelyn’, ‘Lotte’, and ‘Sonora’ grafted on Wagenheims rootstock.
The plantation was established in Latvia in the spring of 2016 at the Institute of Horticulture.
Winter hardiness of all cultivars grafted on this rootstock was good, with only 2 of 43 trees dying over eight years.
Starting in 2016, growth dynamics were evaluated by measuring trunk cross-sectional area (TCSA). The crown volume was calculated in 2021 based on crown parameters.
Since 2021, yield per tree, yield per trunk cross-sectional area, and yield per crown volume have been recorded.
Initial observations showed that ‘Sonora’ trees were stronger at the plantation establishment, but later exhibited the lowest growth intensity.
No significant differences in growth intensity were observed among the other cultivars in the following years.
On average, ‘Ance’ had the largest crown volume at 16.94 m3, while ‘Adelyn’ had the smallest at 12.92 m3. Thaws and early spring frosts significantly impacted crop formation during the examined years.
Over three years, ‘Adelyn’ exhibited the highest average yield tree-1 at 28.5 kg (with a peak yield of 40.6 kg). Yield based on TCSA was significantly higher for ‘Ance’ (0.21 kg cm-2) and ‘Adelyn’ (0.18 kg cm-2). Yield m-3 of crown volume was significantly higher for ‘Adelyn’ at 0.91 kg m-3. After seven years, ‘Ance’ and ‘Adelyn’ demonstrated the best results on the Wangenheim rootstock, even under adverse weather conditions.
The Wangenheim rootstock as rootstock has been grown relatively rarely so far in Latvia, due to long winter frost periods, spring thaws, and a relatively short vegetation season.
This study aimed to determine differences in the growth and production performances of the Latvian cultivars ‘Ance’, ‘Adelyn’, ‘Lotte’, and ‘Sonora’ grafted on Wagenheims rootstock.
The plantation was established in Latvia in the spring of 2016 at the Institute of Horticulture.
Winter hardiness of all cultivars grafted on this rootstock was good, with only 2 of 43 trees dying over eight years.
Starting in 2016, growth dynamics were evaluated by measuring trunk cross-sectional area (TCSA). The crown volume was calculated in 2021 based on crown parameters.
Since 2021, yield per tree, yield per trunk cross-sectional area, and yield per crown volume have been recorded.
Initial observations showed that ‘Sonora’ trees were stronger at the plantation establishment, but later exhibited the lowest growth intensity.
No significant differences in growth intensity were observed among the other cultivars in the following years.
On average, ‘Ance’ had the largest crown volume at 16.94 m3, while ‘Adelyn’ had the smallest at 12.92 m3. Thaws and early spring frosts significantly impacted crop formation during the examined years.
Over three years, ‘Adelyn’ exhibited the highest average yield tree-1 at 28.5 kg (with a peak yield of 40.6 kg). Yield based on TCSA was significantly higher for ‘Ance’ (0.21 kg cm-2) and ‘Adelyn’ (0.18 kg cm-2). Yield m-3 of crown volume was significantly higher for ‘Adelyn’ at 0.91 kg m-3. After seven years, ‘Ance’ and ‘Adelyn’ demonstrated the best results on the Wangenheim rootstock, even under adverse weather conditions.
Publication
Authors
I. Grāvīte, E. Kaufmane, M.K. Jansone, E. Jegorova
Keywords
winter hardiness, growth intensity, compatibility, yield
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