Germination of acorns and development of oak seedlings (Quercus robur L.) following flooding
2007
Kuehne, C.,Georg-August Univ., Goettingen (Germany). Dept. I: Silviculture of Temperate Zones and Forest Ecology | Bartsch, N.,Georg-August Univ., Goettingen (Germany). Dept. I: Silviculture of Temperate Zones and Forest Ecology
Two different experiments simulating flood conditions were carried out in order to determine the germination of acorns and development of seedlings of Quercus robur. In both experimental trials no significant difference between the different flooding periods (8, 10, and 12 weeks) could be established either for shoot emergence or for the measured morphological growth parameters. Flooding delayed the germination of submerged acorns till the end of inundation. However, seeds of the flooding treatments had significantly higher germination rates than the non-flooded acorns of the control. Likewise, dry weights of seedlings from the flooded seeds were significantly higher than those of seedlings from seeds not flooded. Aboveground growth in the 24-week growth period following flooding was reduced in favour of root development in either trial of the experiment. Seeds and seedlings of Quercus robur demonstrated high resistance to complete inundation under controlled conditions.
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