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Juvenile growth and frost damages of poplar clone OP42 in Latvia

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dc.contributor.authorSēnhofa, S.
dc.contributor.authorNeimane, U.
dc.contributor.authorGrava, A.
dc.contributor.authorSisenis, L.
dc.contributor.authorLazdina, D.
dc.contributor.authorJansons, A.
dc.date.accessioned2017-10-05T06:47:40Z
dc.date.available2017-10-05T06:47:40Z
dc.date.issued2017
dc.descriptionArticleeng
dc.description.abstractShort rotation plantations in the northern Europe are commonly established using poplar clone OP42 (Populus maximowiczii Henry × P. trichocarpa Torr. and Gray). We assessed its growth and suitability to the climate in central part of Latvia at juvenile age. Trees that had formed single stem were significantly higher (121 ± 2.5 cm), thicker (7.1 ± 0.48 mm) and had longer branches (32 ± 1.5 cm) than trees that had formed multiple stems. In beginning of the second growing season all trees had died stems and 19.6% of them formed new shoots from the ground level. The sprouting trees had random spatial distribution in the field. Regardless of the number of stems, the sprouting trees were significantly lower (110 ± 3.9 cm) than the dead trees (119 ± 2.0 cm). During the repeated assessment about one month later, proportion of the sprouting trees increased up to 44%, but the detected relations between measured traits of sprouting and dead trees remained. Clone OP42 had serious frost induced damages also in autumn phenology experiment (96% trees with severely damaged leaves). Our results suggest that frost prone sites are not suitable for establishment of plantations of OP42 clone.eng
dc.identifier.issn1406-894X
dc.identifier.publicationAgronomy Research, 2017, vol. 15, no. 5, pp. 2113-2125eng
dc.identifier.urihttp://hdl.handle.net/10492/3697
dc.identifier.urihttp://dx.doi.org/10.15159/ar.17.061
dc.rights.holderCopyright 2009 by Estonian University of Life Sciences, Latvia University of Agriculture, Aleksandras Stulginskis University, Lithuanian Research Centre for Agriculture and Forestry. No part of this publication may be reproduced or transmitted in any form, or by any means, electronic or mechanical, incl. photocopying, electronic recording, or otherwise without the prior written permission from the Estonian University of Life Sciences, Latvia University of Agriculture, Aleksandras Stulginskis University, Lithuanian Research Centre for Agriculture and Forestryeng
dc.subjectPopulus maximowiczii × P. trichocarpaeng
dc.subjectclone OP42eng
dc.subjectsproutingeng
dc.subjectfreeze-thaweng
dc.subjectwood dysfunctioneng
dc.subjectarticleseng
dc.titleJuvenile growth and frost damages of poplar clone OP42 in Latviaeng
dc.typeArticleeng

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2017, Vol. 15, No. 5