Effects of root pruning in sour cherry (Prunus cersus) "Stevnsbaer"
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Effects of root pruning in sour cherry (Prunus cersus) "Stevnsbaer". / Toldam-Andersen, Torben; Jensen, Nauja Lisa; Dencker, Ivar Blücher.
I: Acta Horticulturae, Bind 732, 2007, s. 439-442.Publikation: Bidrag til tidsskrift › Konferenceartikel › Forskning › fagfællebedømt
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TY - GEN
T1 - Effects of root pruning in sour cherry (Prunus cersus) "Stevnsbaer"
AU - Toldam-Andersen, Torben
AU - Jensen, Nauja Lisa
AU - Dencker, Ivar Blücher
N1 - Conference code: 8
PY - 2007
Y1 - 2007
N2 - Major problems with excessive growth, reduced light conditions, poor flower bud development and low yields have developed in many orchards with the sour cherry 'Stevnsbaer'. To investigate the possibility of handling the problems by root pruning, a project was initiated in 2003. Three orchards with trees of middle age on rootstock Colt were selected. Three trees with intact root systems were pulled up in each of the orchards. Based on the architecture of the root systems, a pruning distance of 30-35 cm from the trunk was used, removing approximately 30 percent of the roots. The one-sided root pruning was carried out either in April or in June with a curved knife reaching a depth of 75 cm and with a bend of 25 cm in the lower 30 cm. One hundred and eighty, 2-year-old branch systems were labelled and shoot number, shoot length, bud number (April), flowers, pistil damaged or late opening flowers (May), initial and final fruit set (June) were recorded. Root pruning had little effect on fruit set, fruit size and yield in the year of pruning. Only in one plot with a severe root pruning (26 cm from the trunks), negative effects were found. The effects on growth, flowering and fruit set in 2003 and 2004 are reported and the prospects for improved growth control in sour cherry by root pruning are discussed.
AB - Major problems with excessive growth, reduced light conditions, poor flower bud development and low yields have developed in many orchards with the sour cherry 'Stevnsbaer'. To investigate the possibility of handling the problems by root pruning, a project was initiated in 2003. Three orchards with trees of middle age on rootstock Colt were selected. Three trees with intact root systems were pulled up in each of the orchards. Based on the architecture of the root systems, a pruning distance of 30-35 cm from the trunk was used, removing approximately 30 percent of the roots. The one-sided root pruning was carried out either in April or in June with a curved knife reaching a depth of 75 cm and with a bend of 25 cm in the lower 30 cm. One hundred and eighty, 2-year-old branch systems were labelled and shoot number, shoot length, bud number (April), flowers, pistil damaged or late opening flowers (May), initial and final fruit set (June) were recorded. Root pruning had little effect on fruit set, fruit size and yield in the year of pruning. Only in one plot with a severe root pruning (26 cm from the trunks), negative effects were found. The effects on growth, flowering and fruit set in 2003 and 2004 are reported and the prospects for improved growth control in sour cherry by root pruning are discussed.
U2 - 10.17660/ActaHortic.2007.732.66
DO - 10.17660/ActaHortic.2007.732.66
M3 - Conference article
VL - 732
SP - 439
EP - 442
JO - Acta Horticulturae
JF - Acta Horticulturae
SN - 2406-6168
Y2 - 13 June 2004 through 18 June 2004
ER -
ID: 186062149