Tag Archives: titratable acids

31–36 M. Jalakas, K. Kelt and K. Karp
The yield and fruit quality of sea buckthorn (Hippophae rhamnoides L.) after rejuvenation cutting
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The yield and fruit quality of sea buckthorn (Hippophae rhamnoides L.) after rejuvenation cutting

M. Jalakas¹, K. Kelt² and K. Karp¹

¹Institute of Horticulture, Estonian Agricultural University, Kreutzwaldi 64, 51014 Tartu, Estonia; e-mail: kkarp@eau.ee
²Polli Horticultural Institute of the Estonian Agricultural University, 69104 Karksi-Nuia, Estonia; e-mail: asta@pai.neti.ee

Abstract:

The yield and fruit quality of 6 sea buckthorn (Hippophae rhamnoides L.) cultivars of a Moscow breeding programme were studied at the Rõhu Experimental Station in South Estonia. The chemical contents of fruits of sea buckthorn were analysed after 3 months of cold-storage at –18°C. ‘Trofimovskaya’ appeared to have more sugars (2.9%) than the other cultivars. ‘Otradnaya’ had the lowest acid content (2.1%). ‘Vorobjevskaya’, ‘Trofimovskaya’ and ‘Otradnaya’ had higher ascorbic acid contents (about 65 mg/100 g) than the other tested cultivars. ‘Vorobjevskaya’ gave the highest yield (9.6 kg/tree) in the 3rd year after cutting down the trees to 2.5 m height. In the following year, the yield of the experiment was significantly higher, whereas cultivars Trofimovskaya and Botanicheskaya had the biggest yields.

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