eCite Digital Repository

Eucalypt seed collectors: beware of sampling seedlots from low in the canopy!


Patterson, B and Vaillancourt, RE and Potts, BM, Eucalypt seed collectors: beware of sampling seedlots from low in the canopy!, Australian Forestry, 64, (3) pp. 139-142. ISSN 0004-9158 (2001) [Refereed Article]

DOI: doi:10.1080/00049158.2001.10676178


Molecular markers have provided evidence that the canopy position from which open-pollinated seed is harvested in Eucalyptus globulus can markedly affect its outcrossing rate. Outcrossing rates were higher and more uniform in upper canopy samples. As expected, no significant differences in outcrossing rate were found between top and bottom canopy samples of self-incompatible trees, but differences were large between top and bottom samples of self-compatible trees. In one tree, 73% of the open-pollinated progenies at the bottom of the canopy were selfed compared to 26% at the top. Such selfing can severely reduce survival and growth. This result clearly indicates the importance of sampling position within the canopy when collecting open-pollinated seed for deployment or genetic evaluation. © 2001 Taylor & Francis Group, LLC.

Item Details

Item Type:Refereed Article
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Forestry sciences
Research Field:Tree improvement (incl. selection and breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Forestry
Objective Field:Hardwood plantations
UTAS Author:Patterson, B (Dr Briony Patterson)
UTAS Author:Vaillancourt, RE (Professor Rene Vaillancourt)
UTAS Author:Potts, BM (Professor Brad Potts)
ID Code:23031
Year Published:2001
Deposited By:Plant Science
Deposited On:2001-08-01
Last Modified:2009-07-31

Repository Staff Only: item control page