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2025
Forfattere
Darius KviklysSammendrag
European fruit research institute network (EUFRIN) has started coordinated apple and pear rootstock trials across the Europe in 2017. First pear rootstock trial was established in 2019 where quince rootstocks from NIAB (UK) breeding program ‘QR196-9’ and ‘QR530-11’ were compared with rootstocks ‘Adams’ and ‘Sydo’. Investigations were conducted with pear cultivar ‘Conference’ in Spain, Romania, Poland and Norway during 2019-2023. In all sites the most vigorous pear trees grew on ‘QR196-9’ rootstock. On the average of four trial sites, the weakest growth was recorded on ‘QR530-11’, except the Spanish site. Pear trees on rootstock ‘Adams’ produced the highest cumulative yields. Cumulative yields on other rootstocks were significantly lower by 16-23% without significant differences between them. However, site geographical position, climate and soil properties had a significant effect on rootstock performance. Similar to trees on ‘Adams’ high pear yield in Spain was harvested from trees on ‘QR196-9’; on ‘QR530-11’ rootstock in Poland, but ‘Sydo’ and ‘QR530-11’ rootstocks gave the highest yield in Romania. On the average of all sites, the least cumulative fertility index was recorded on ‘QR196-9’. Significant rootstock site interactions were revealed: rootstock ‘Adams’ had the highest cumulative fertility index in Spain and Norway, while rootstock ‘QR530-11’ in Poland and Romania.
Sammendrag
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Forfattere
Geir Wæhler Gustavsen Philip Bester van Niekerk Jonas Niklewski Christian Brischke Gry AlfredsenSammendrag
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Sammendrag
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Forfattere
Katrin ZimmerSammendrag
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Forfattere
Katrin ZimmerSammendrag
Det er ikke registrert sammendrag
Forfattere
Katrin ZimmerSammendrag
Det er ikke registrert sammendrag
Forfattere
Katrin ZimmerSammendrag
Det er ikke registrert sammendrag
Sammendrag
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Sammendrag
Det er ikke registrert sammendrag