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Stand density influences outcrossing rate and growth of open-pollinated families of Eucalyptus globulus

Citation

Hardner, CM and Vaillancourt, RE and Potts, BM, Stand density influences outcrossing rate and growth of open-pollinated families of Eucalyptus globulus, Silvae Genetica, 45, (4) pp. 226-228. ISSN 0037-5349 (1996) [Refereed Article]

Abstract

Using isozymes markers, we test BORRALHO and POTTS' (1996) hypothesis that poorer growth of open pollinated (OP) families of Eucalyptus globulus grown from seed-collected from less dense stands is a consequence of lower outcrossing rates. A significant relationship between stand density class and out-crossing rate was found, with outcrossing rates near one for families from closed forests. In support of BORRALHO and POTTS' (1996) hypothesis, lower parental breeding values were generally associated with lower outcrossing rates. This is no doubt due to a higher proportion of less vigorous selfs within an OP family depressing mean growth relative to families where inbred progeny were virtually absent. It is suggested that the precision of predicting breeding values with OP progenies may be improved by adjusting family performance for individual outcrossing rate.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Genetics
Research Field:Population, Ecological and Evolutionary Genetics
Objective Division:Plant Production and Plant Primary Products
Objective Group:Other Plant Production and Plant Primary Products
Objective Field:Plant Production and Plant Primary Products not elsewhere classified
Author:Hardner, CM (Mr Craig Martin Hardner)
Author:Vaillancourt, RE (Professor Rene Vaillancourt)
Author:Potts, BM (Professor Brad Potts)
ID Code:7119
Year Published:1996
Web of Science® Times Cited:29
Deposited By:Plant Science
Deposited On:1996-08-01
Last Modified:2011-08-16
Downloads:0

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