Skip to Main Content
Early rooting of dormant hardwood cuttings of Populus: analysis of quantitative genetics and genotype x environment interactionsAuthor(s): Ronald S., Jr. Zalesny; Don E. Riemenschneider; Richard B. Hall
Source: Canadian Journal of Forest Research 35:918-929
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
PDF: View PDF (1.4 MB)
DescriptionRooting of hardwood cuttings is under strong genetic control, although genotype x environment interactions affect selection of promising genotypes. Our objectives were (1) to assess the variation in rooting ability among 21 Populus clones and (2) to examine genotype x environment interactions to refine clonal recommendations. The clones belonged to five genomic groups ((Populus trichocarpa Torr. & Gray x Populus deltoides Bartr. ex Marsh.) x P. deltoides 'BC'; P. deltoides 'D'; P. deltoides x Populus maximowiczii A. Henry 'DM'; P. deltoides x Populus nigra L. 'DN'; and P. nigra x P. maximowiczii `NM'). Cuttings, 20 cm long, were planted in Iowa and Minnesota in randomized complete blocks at 1.2 m x 2.4 m spacing, across three planting dates during 2001 and 2002. We measured nine belowground and aboveground traits from harvested cuttings after 14 days of growth. Percent rooting ranged from 22% to 86%. Broad-sense heritability for root and top dry mass ranged from 0.09 to 0.11 and 0.31 to 0.38, respectively. There were genotype x environment interactions for most traits, with belowground growing degree-days accounting for >54% of environmental variation. Clonal rooting was stable, except at Westport, Minnesota, during 2002, when root growth was relatively poor.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationZalesny, Ronald S., Jr.; Riemenschneider, Don E.; Hall, Richard B. 2005. Early rooting of dormant hardwood cuttings of Populus: analysis of quantitative genetics and genotype x environment interactions. Canadian Journal of Forest Research 35:918-929
- Breeding poplars with durable resistance to Melampsora larici-populina leaf rust: a multidisciplinary approach to understand and delay pathogen adaptation
- Ethanol production from poplar wood through enzymatic saccharification and fermentation by dilute acid and SPORL pretreatments
- Use of belowground growing degree days to predict rooting of dormant hardwood cuttings of Populus
XML: View XML