The influence of high tunnel on yield and berry quality in three floricane raspberry cultivars

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Palonen , P , Pinomaa , A & Tommila , T K 2017 , ' The influence of high tunnel on yield and berry quality in three floricane raspberry cultivars ' , Scientia Horticulturae , vol. 214 , pp. 180-186 . https://doi.org/10.1016/j.scienta.2016.11.049

Title: The influence of high tunnel on yield and berry quality in three floricane raspberry cultivars
Author: Palonen, Pauliina; Pinomaa, Anni; Tommila, Tero Kalervo
Contributor: University of Helsinki, Department of Agricultural Sciences
University of Helsinki, Department of Agricultural Sciences
Date: 2017
Language: eng
Number of pages: 7
Belongs to series: Scientia Horticulturae
ISSN: 0304-4238
URI: http://hdl.handle.net/10138/308521
Abstract: Growing raspberries in polyethylene tunnels is becoming more and more common. We wanted to examine the effect of high tunnel growing conditions on yield and berry quality in three floricane raspberry cultivars, 'Glen Ample', 'Glen Dee', and 'Maurin Makea', under Northern high-latitude conditions. Compared to the open field, fruit yield per cane was doubled in the tunnel. Fruit bioactive properties, including phenolic compounds and antioxidant activity, were not affected by the tunnel growing conditions. Of the cultivars investigated, 'Glen Dee' fruit had the lowest concentration of total phenolics. In the open field, the total phenolics content in 'Glen Ample' berries was 48% higher than 'Glen Dee'. Berries grown in the open field had higher contents of soluble solids (degrees Brix) and higher titratable acidity than those grown in the tunnel. Additionally, 'Glen Ample' and 'Maurin Makea' berries were sweeter than 'Glen Dee' berrieg. In conclusion, raspberry production in polyethylene tunnels may provide major benefits through increased fruit yield. While fruit bioactive properties were not affected, sensory taste may be different, however, as berry sweetness and acidity were decreased in the high tunnel. (C) 2016 Elsevier B.V. All rights reserved.
Subject: Buffering capacity
Fragaria x ananassa
Growing medium
Growth substrate
Water holding capacity
COCONUT COIR DUSTS
GROWING MEDIA
PHYSICAL-PROPERTIES
PEAT SUBSTITUTE
GROWTH MEDIA
WATER
CULTURE
PLANTS
ANANASSA
SYSTEM
4111 Agronomy
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